Scotland Weather by Month: Region-by-Region Data

Drive from Aviemore to Glencoe in a single morning and you can leave in flat spring sunshine and arrive in horizontal rain that soaks you through in the length of a car park. Nothing unusual has happened. You have simply crossed from one side of Scotland’s mountains to the other, and the two sides have very different climates.

That is the problem with almost every guide to Scotland weather by month. They give you one national table — one average high, one rainfall figure — for a country where Wester Ross catches three times the annual rain that falls on Inverness, and where the island of Tiree, out on the Atlantic edge, logs far more sunshine than the inland glens. If you are planning Edinburgh in October and your friend is planning Skye in October, you are not looking at the same weather at all. So this guide splits the data by region, and then explains the mechanics behind it.

Scotland weather by month: the short answer

Scotland is mild, wet and windy, with warm months rather than hot ones. July and August are warmest (highs of 17–19°C in the cities), December and January coldest (highs of 6–8°C). April, May and June are the driest and sunniest months almost everywhere. October to January are the wettest. The east is far drier than the west — that split matters more than the month.

The one table that explains Scottish weather

All figures below are Met Office station averages for 1991–2020, the current standard climate period. Read this table before you read anything else about the best time to visit Scotland, because it shows why a single national number is close to meaningless.

Place	Annual rainfall	Rain days (1mm+)	Sunshine hours/year	July average high
Inverness	755 mm	148	1,250	19°C
Edinburgh (Gogarbank)	784 mm	137	1,363	19°C
Aviemore	985 mm	—	—	—
Tiree (Inner Hebrides)	1,275 mm	198	1,524	16°C
Lerwick (Shetland)	1,252 mm	204	1,158	14°C
Oban (Dunstaffnage)	1,728 mm	204	1,227	18°C
Fort William area (Tulloch Bridge)	1,827 mm	206	not recorded	17°C
Kinlochewe (Wester Ross)	2,279 mm	220	926	19°C

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Look at Inverness and Kinlochewe. Both are in the Highlands. Both average a July high of 19°C. One gets 755 mm of rain a year, the other 2,279 mm — three times as much — and about 323 fewer hours of sunshine.

Month by month in four contrasting places

Here are the four climates most visitors actually encounter: the drier east, the wet west coast, the sheltered Moray Firth, and the windy northern isles. Temperatures are mean daily maximum and minimum; rain days count days with 1 mm or more; sunshine is the monthly total.

Edinburgh and the east coast

Edinburgh sits in the rain shadow of everything to its west, and it shows: 784 mm a year is less rain than falls on Manchester or Cardiff. The figures below come from the Met Office station at Gogarbank, near the airport, and they are a fair guide for a trip to Scotland’s capital.

Month	Avg high	Avg low	Rainfall	Rain days	Sunshine
January	7°C	2°C	73 mm	13	47 h
February	8°C	2°C	61 mm	11	78 h
March	9°C	3°C	52 mm	10	111 h
April	12°C	4°C	46 mm	9	148 h
May	15°C	7°C	50 mm	11	190 h
June	17°C	9°C	69 mm	11	159 h
July	19°C	11°C	72 mm	11	161 h
August	19°C	11°C	75 mm	11	146 h
September	17°C	9°C	55 mm	11	125 h
October	13°C	6°C	83 mm	13	94 h
November	10°C	4°C	74 mm	13	67 h
December	7°C	1°C	75 mm	13	38 h

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Two things jump out. April is the driest month of the Edinburgh year at 46 mm across nine rain days, and May is comfortably the sunniest at 190 hours — more sunshine than July. That is not a quirk of the data; May is the sunniest month at almost every station in Scotland. If you only have a single day in the city, late spring gives you the best odds of getting it dry.

Aberdeen and the wider Aberdeenshire coast run a shade cooler and slightly wetter than Edinburgh in autumn but sunnier over the year: Dyce records 1,447 hours against Edinburgh’s 1,363.

The west coast: Oban, Glen Coe and Lochaber

The Dunstaffnage station, just north of Oban, gives a useful picture of what the west coast throws at you. Treat its numbers as a coastal guide rather than a reading for Glen Coe or Fort William themselves.

Month	Avg high	Avg low	Rainfall	Rain days	Sunshine
January	8°C	3°C	206 mm	20	32 h
February	8°C	3°C	156 mm	17	63 h
March	9°C	3°C	137 mm	17	95 h
April	12°C	5°C	92 mm	14	147 h
May	15°C	7°C	95 mm	14	192 h
June	17°C	10°C	96 mm	14	171 h
July	18°C	11°C	110 mm	16	135 h
August	18°C	11°C	130 mm	17	135 h
September	16°C	10°C	141 mm	16	99 h
October	13°C	7°C	189 mm	19	78 h
November	10°C	5°C	178 mm	20	46 h
December	8°C	3°C	198 mm	20	33 h

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Compare December: Edinburgh 75 mm and 13 rain days, Oban 198 mm and 20 rain days. Same country, same week, more than two and a half times the water. Push further inland into Lochaber and it gets worse — the Tulloch Bridge station averages 250 mm in January alone.

The compensation is that the west is milder. Oban’s January low of 3°C is warmer than Aviemore’s (-1°C) because the Atlantic keeps the coast from freezing hard. It is also why the west is greener, and why the drives through the Highlands look the way they do in photographs.

Inverness and the Moray Firth

This is the number that surprises people most: the Moray Firth coast is one of the driest parts of Scotland. Inverness averages 755 mm a year, less than Edinburgh and a third of Kinlochewe, which sits about 60 miles west on the far side of the same mountains.

Month	Avg high	Avg low	Rainfall	Rain days	Sunshine
January	7°C	1°C	76 mm	14	40 h
February	8°C	1°C	61 mm	12	74 h
March	10°C	2°C	53 mm	12	110 h
April	12°C	4°C	41 mm	10	144 h
May	15°C	6°C	56 mm	11	184 h
June	17°C	9°C	62 mm	12	143 h
July	19°C	11°C	62 mm	11	139 h
August	19°C	11°C	65 mm	12	136 h
September	17°C	9°C	63 mm	12	117 h
October	13°C	6°C	78 mm	14	82 h
November	9°C	3°C	67 mm	13	52 h
December	7°C	1°C	73 mm	14	28 h

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April in Inverness averages 41 mm over ten rain days. That is less than half what falls on Oban in the same month. It also explains why basing yourself at Loch Ness and Inverness for a few nights is a reliable move in a changeable week: you can day-trip west into the wet stuff and come back to a dry bed.

Aviemore, around 40 minutes’ drive south in Strathspey, stays relatively dry at 985 mm but runs colder, which makes it the better bet for snow and the worse bet for a warm evening outside a pub.

Lerwick, Shetland and the far north

Shetland has its own climate: never very cold, never even slightly warm, and permanently breezy. Lerwick’s warmest month, August, averages a high of 15°C. Its coldest, February, averages 6°C. That is an annual swing of nine degrees, which is remarkable.

Month	Avg high	Avg low	Rainfall	Rain days	Sunshine
January	6°C	2°C	150 mm	22	27 h
February	6°C	2°C	123 mm	19	58 h
March	7°C	2°C	109 mm	19	98 h
April	8°C	4°C	68 mm	15	141 h
May	11°C	6°C	57 mm	12	192 h
June	13°C	8°C	60 mm	12	148 h
July	14°C	10°C	68 mm	12	129 h
August	15°C	10°C	89 mm	13	132 h
September	13°C	9°C	106 mm	16	100 h
October	10°C	7°C	131 mm	20	75 h
November	8°C	4°C	143 mm	22	38 h
December	7°C	2°C	150 mm	23	21 h

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The number that should shape your packing is not in that table: Lerwick’s mean wind speed is around 17 mph across the year and about 21 mph in January. That is an average, not a gust. Stornoway in the Outer Hebrides averages about 14 mph and Tiree about 16 mph. Anywhere in the Scottish islands, wind is the weather.

Tiree is the outlier worth knowing about. It gets 1,524 hours of sunshine a year, the sunniest record of any station here, and 240 hours in May alone. It is also almost treeless, because nothing woody survives that wind.

Daylight hours by month

Daylight swings more dramatically in Scotland than temperature does, and it is the single biggest constraint on what you can fit into a day. The table compares the three places month by month: in winter the day gets shorter the further north you go, in summer it gets longer, and around the March and September equinoxes all three are close to level.

Month	Edinburgh	Inverness	Lerwick
January	Longest	Shorter	Shortest
February	Longest	Shorter	Shortest
March	About level	About level	About level
April	Shortest	Longer	Longest
May	Shortest	Longer	Longest
June	Shortest	Longer	Longest
July	Shortest	Longer	Longest
August	Shortest	Longer	Longest
September	About level	About level	About level
October	Longest	Shorter	Shortest
November	Longest	Shorter	Shortest
December	Longest	Shorter	Shortest

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Twilight adds usable light at both ends of the day, and far more of it in midsummer than in midwinter. In Shetland at midsummer it never gets properly dark at all — locals call it the simmer dim.

The practical consequence is that a December day in the north gives you about six hours of light. Two Highland sights and a two-hour drive is a full day, not a leisurely one. Plan a winter route through Scotland around that and you will enjoy it; ignore it and you will drive a lot in the dark. The flip side is that the long nights make October to March the best time for dark-sky stargazing, when the skies are darkest.

Five mechanics worth understanding

The averages tell you what usually happens. These five things tell you why, and they are far more useful once you are actually on the road.

1. The Highlands have a rain shadow, and it is enormous

Atlantic air arrives from the west carrying huge amounts of moisture. When it hits the western mountains it is forced upwards, cools, and dumps its water on the first high ground it meets. By the time that same air spills down the eastern side it has been wrung out, and it warms as it descends, so it holds what is left.

The effect is not subtle. Kinlochewe on the west takes 2,279 mm a year. Aviemore, on the western edge of the Cairngorms, takes 985 mm. Both are Highland villages. Both sit under mountains. One gets more than twice the rain of the other, and the drive between them is about two and a half hours.

Use this. If your west-coast day is written off, the east is often genuinely dry rather than merely less wet, and vice versa.

2. Haar can steal a June morning on the east coast

Haar is cold sea fog, and it is the reason the east coast can lose a whole summer morning while the countryside 15 miles inland is bright. It forms when relatively warm, moist air drifts over the cold North Sea, cools below its dew point and condenses. An easterly breeze or an afternoon sea breeze then pushes that fog onto the land.

It is most common between April and September, exactly when the land is warming fast and the sea has not caught up. Edinburgh, East Lothian, Fife, Dundee and Aberdeen all get it. A haar day looks like this: grey, still and chilly on the coast, while a short drive inland can bring you out under blue sky.

The fix is a Plan B that goes west or inland. If you wake up to haar in Edinburgh, that is the morning to climb Arthur’s Seat late rather than early, or to head for Glasgow, which often sits above it.

3. Wind matters more than temperature

A still 6°C day is pleasant walking weather. Put the same 6°C in a strong wind and it feels close to freezing, colder again in a gale. That is the difference between a good afternoon and a miserable one, so read the wind speed on a forecast before you look at the temperature.

Two places where this bites. On the hill: the Met Office station on the Aonach Mor summit plateau near Fort William, at around 1,130 m, records a mean wind of about 22 mph across the year and 28 mph in January. Down in the valley at Tulloch Bridge the annual mean is about 7 mph. Same weather system, three times the wind.

And on the water: CalMac ferries to the islands cancel for wind, not rain, and they cancel with limited notice. If your trip depends on a single sailing to Skye, Mull or the Outer Hebrides in autumn or winter, build a spare day into the plan. There is more on that in our guide to getting around Scotland.

4. Altitude: about 6°C per 1,000 metres

Air cools as it rises. The usual working figure is around 6°C per 1,000 m, and in dry conditions it can be closer to 10°C. In practice, the gap in average daily highs between Tulloch Bridge at 237 m and the Aonach Mor summit station at roughly 1,130 m runs at about 6°C per 1,000 m in January and around 8°C per 1,000 m in July.

What that means in real numbers: in July, when Tulloch Bridge in the glen averages a 17°C afternoon, the summit station averages a high of about 10°C. In January its average high is barely above freezing. Across the year that station logs 167 frost days.

So yes — you can start a Munro in a T-shirt and reach the top in conditions that need a hat and gloves, in June. Anyone walking the Scottish hills should treat the summit forecast, not the valley forecast, as the real one. The Mountain Weather Information Service publishes free summit forecasts and they are worth ten minutes of your morning.

5. “Four seasons in one day” is a real phenomenon

This one gets said so often it sounds like a cliche, but it describes something specific. Scotland sits in the path of the Atlantic storm track, where weather arrives as frontal systems — bands of warm and cold air with sharp boundaries between them. A single depression will deliver, in order: thickening cloud, a spell of steady rain at the warm front, a milder murky interval, then a cold front with heavy showers and a wind shift, then bright cold air with towering clouds and hail squalls behind it.

That whole sequence can pass over you in six hours. It is why a forecast saying “sunny intervals and showers” is genuinely accurate and genuinely unhelpful, and why the correct response to Scottish rain is usually to wait 40 minutes rather than to cancel.

What to pack, keyed to the numbers

All year, no exceptions

A properly waterproof shell with a hood, taped seams and a hydrostatic head that copes with sustained rain. Not a shower-resistant jacket. On the west coast in October you are looking at 19 rain days and 189 mm; a fashion raincoat will fail on day two.

Layers rather than one thick coat, because the temperature can swing a long way in a single day. A merino or synthetic base layer, a fleece or light insulated midlayer, then the shell. Waterproof footwear you can walk five miles in. And a warm hat, even in July, if you are going anywhere above 600 m.

Leave the umbrella at home

Scottish rain rarely falls vertically. On the windy islands, with regular strong gusts, an umbrella either inverts, snaps, or funnels water down your sleeve. In Edinburgh, where the wind is gentler at around 9 mph on average, an umbrella survives — but the moment you head for the coast or the hills, a hood is the only thing that works.

Season by season

December to February: insulated jacket, gloves, hat, and footwear with grip. Highland roads can hold ice, and the Cairngorms get proper snow. See our full account of what a Scottish winter is actually like.

March to May: the driest and sunniest stretch of the year, but still cold in the morning. Pack as for autumn and enjoy being pleasantly surprised. May in particular is the standout month on almost every measure in the tables above.

June to August: shorts are optional, the waterproof is not. The three summer months get steadily wetter on the west coast: at Dunstaffnage near Oban, average rainfall climbs from about 96 mm in June to 110 mm in July and 130 mm in August, and September is wetter still. Sunglasses genuinely help on long northern evenings.

September to November: the best light of the year and the fastest-deteriorating weather. September still gives you 16°C afternoons; November gives you short days and 20 rain days in the west.

Midges: which months to worry about

Highland midges need still, damp, mild conditions, which is why they are a west coast and Highland problem rather than a national one. The season runs roughly from late May to early September, peaking in July and August, and they are worst at dawn and dusk in sheltered, boggy places.

The link to the weather is direct: wind above about 7 mph grounds midges and bright light keeps them down, while still, dull conditions bring them out to bite. So the windy islands are largely fine, and a breezy west-coast headland is fine, while a still evening beside a loch in July is not. If you are camping or walking between June and August, read our guide to Scotland’s midge season before you book, and pack repellent and a head net.

Planning around the weather

How much time you need, by season

In June you can drive four hours and still walk for three. In December, six hours of daylight means two stops and one drive. So plan far shorter drives for a winter trip than for a summer one, and put anything scenic into the middle of the day.

For a first trip, seven to ten days is the sweet spot in summer and ten to fourteen in winter, simply because you lose days to weather and short light. Building in one flexible day per week is the single best decision you can make.

What to book early, and what to leave loose

Book accommodation and ferries early — CalMac summer sailings to Skye, Mull and the Outer Hebrides fill weeks ahead, and so do the good places to stay on Skye. Book timed-entry attractions early for July and August. Leave hikes, viewpoints and long drives loose, and decide the night before based on the forecast.

For the North Coast 500 and other long routes, check the forecast direction of travel. Running the loop anticlockwise into a settled easterly, or clockwise ahead of an Atlantic front, can change your whole week.

Where to stay if the forecast is bad

Base yourself somewhere with indoor options and short drives to alternatives. Inverness, Pitlochry, Oban and Fort William all work; a remote cottage 40 minutes from the nearest village does not, if it rains for three days. A wet day is also the day for the West Highland Line or one of the other rail routes worth riding for the view, where somebody else does the driving and the windows do the work.

What the averages don’t tell you

Here is the honest bit, and it is the part most weather guides skip.

The average is not the forecast. Edinburgh’s 19°C July high is the average of every July afternoon over 30 years. Real July afternoons swing well either side of it, so planning your packing around the average alone will leave you cold on the bad days and overdressed on the good ones.

A wet month still has dry days. Oban averages 20 rain days in December. That leaves roughly 11 days with less than 1 mm. A “rain day” is any day with 1 mm or more — which can mean a ten-minute shower at 6am and a clear afternoon. It does not mean rain all day, and treating the rain-day count as a write-off is the single most common misreading of this data.

Sunshine hours and rainfall are not opposites. Kinlochewe averages a July high of 19°C, the same as Edinburgh, while receiving three times the annual rain. Warm and wet is a normal Scottish combination.

Variance is rising at the extremes. Averages from 1991–2020 remain the best planning tool available, but treat them as a central expectation with wide margins, not a promise.

What underwhelms. Two things, said plainly. First, Scottish “sunshine hours” are measured as bright sunshine, and 1,363 hours in Edinburgh works out at under four hours a day averaged over the year — do not expect Mediterranean light in the shoulder months. Second, the famous long summer evenings come with cloud: June has more daylight than May but fewer sunshine hours at nearly every station, because the Atlantic gets busier. If you want light and sun in the same week, May is your month.

A morning forecast is not a verdict on the day. In a frontal climate, the morning tells you very little about three o’clock. Go out, take the shell, and let the weather do what it does.

Frequently asked questions

What is the wettest month in Scotland?

It depends where you are. At Dunstaffnage near Oban, on the west coast, January and December are the wettest months, at about 206 mm and 198 mm. In the east, October is usually the peak: Edinburgh averages 83 mm across 13 rain days. Nationally, October to January is the wet season, and April to June the driest stretch.

What is the driest month in Scotland?

April, almost everywhere: it is the driest month in both the Edinburgh and Inverness tables above. May is a close second and delivers far more sunshine, which is why late spring is the strongest weather bet of the year for most trips.

Which part of Scotland has the best weather?

For dry weather, the east: Inverness averages about 755 mm of rain a year and Edinburgh 784 mm, against 2,279 mm at Kinlochewe in Wester Ross. For sunshine, Tiree in the Inner Hebrides is a strong bet, averaging about 1,524 hours a year.

How many daylight hours does Scotland get in summer?

On 21 June, Edinburgh gets about 17 hours 35 minutes of daylight and Lerwick in Shetland almost 19 hours, with twilight for most of the rest of the night. Mid-June to mid-July is the peak, and the north gains more than the south because of latitude.

How cold does Scotland get in winter?

Milder than most visitors expect at sea level. The Edinburgh and Lerwick tables above show how mild the coast stays. Inland and at altitude it is a different story: Aviemore runs colder than Inverness, and on the summit of Aonach Mor the average January high is barely above freezing.

Does it rain every day in Scotland?

No. Even the wettest station here, Kinlochewe, averages 220 days a year with 1 mm of rain or more — which leaves about 145 days with less than that. Edinburgh has 137 such days, so roughly 62% of its days fall below the 1 mm mark. Showers are usually short and driven through by wind.

What month has the most sunshine in Scotland?

May, at nearly every station in the country. Edinburgh records 190 hours in May against 161 in July; Tiree records 240. Longer June and July days do not translate into more sunshine because Atlantic cloud increases as summer goes on.

Do I need snow tyres or a 4×4 in winter?

For main roads and cities, no — ordinary tyres are fine and gritting is reliable on trunk routes like the A9 and A82. For single-track Highland roads in January, check conditions before setting out, carry a shovel and a warm layer, and be willing to turn back. Hire cars in Scotland are not usually fitted with winter tyres.

Final thoughts

The lesson of every one of these tables is the same: stop asking what the weather is like in Scotland and start asking what it is like in the bit of Scotland you are going to, in the month you are going. A wet October week in Wester Ross and a dry October week in Inverness are both entirely normal, and both are in the data.

Go in May if you can, September if you can’t, take a real waterproof whatever the month, and never let a grey morning decide your day. Scotland rewards people who go outside anyway — and the light after a squall clears is the best thing about the place.

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About the author: This guide was written and is maintained by the ScotlandTourism.org editorial team — travel writers who’ve spent years exploring Scotland’s cities, Highlands and islands, from bagging Munros to chasing the perfect dram. We update our guides regularly to keep prices, opening details and advice current.

Last updated: August 2026. Prices and opening times change — always check the official site before you travel.

Photo credits

All images are used under their respective Creative Commons or public-domain licenses:

• A rainbow over Loch Torridon after a passing shower in the west Highlands — Chris Combe from York, UK, CC BY 2.0, via Wikimedia Commons
• Edinburgh Castle above Princes Street Gardens on a clear summer afternoon — Matti Blume, CC BY-SA 4.0, via Wikimedia Commons
• Snow covering the peaks around Glen Coe in the west Highlands — Alex Mcnaughton, CC BY-SA 2.0, via Wikimedia Commons
• Low cloud over Loch Ness in the Great Glen near Inverness — Sarah McGuire, CC BY-SA 2.0, via Wikimedia Commons
• Lerwick harbour in Shetland under grey summer cloud — Mike Pennington, CC BY-SA 2.0, via Wikimedia Commons
• Loch Morlich and Cairn Gorm under broken cloud near Aviemore — Dumgoyach, CC BY-SA 2.0, via Wikimedia Commons
• Haar drifting over the East Lothian coast near Dunbar on a summer day — Jennifer Petrie, CC BY-SA 2.0, via Wikimedia Commons
• Walkers on the snow-covered summit plateau of Ben Nevis — Richard Webb, CC BY-SA 2.0, via Wikimedia Commons
• Sunlight and cloud over the Quiraing on the Isle of Skye — Colin, CC BY-SA 4.0, via Wikimedia Commons
• A wide empty beach on Tiree, the sunniest station in Scotland — Alexey Komarov, CC BY-SA 4.0, via Wikimedia Commons