Stornoway weather by month & the best time to visit
United Kingdom · seaside town · oceanic / maritime climate
Stornoway is short on reliable sunshine. Its best month is July (Score 39/100) — for stronger sun, try one of the nearby alternatives.
When is the best time to visit Stornoway?
Stornoway never gets truly sunny weather: July is as good as it gets at 39/100, and January is the low point (0/100). If sunshine is the point of the trip, the nearby alternatives do better.
How sunny is Stornoway?
Stornoway isn't a sunny place by world standards: about 1,212 hours of sunshine a year. July (39/100) is noticeably better than January (0). It ranks #45 of 48 destinations in United Kingdom for annual sunshine, below the national median of 1,345 hours. The year's 1,375 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 8° / 46°F | 6° / 43°F | 144 mm | 0 | 9° / 48°F |
| February | 0 | 7° / 45°F | 5° / 41°F | 110 mm | 0 | 8° / 46°F |
| March | 0 | 8° / 46°F | 5° / 41°F | 105 mm | 1 | 8° / 46°F |
| April | 6 | 9° / 48°F | 7° / 45°F | 75 mm | 2 | 9° / 48°F |
| May | 17 | 11° / 52°F | 8° / 46°F | 89 mm | 3 | 12° / 54°F |
| June | 29 | 13° / 55°F | 11° / 52°F | 89 mm | 4 | 11° / 52°F |
| July | 39 | 15° / 59°F | 12° / 54°F | 104 mm | 4 | 12° / 54°F |
| August | 37 | 15° / 59°F | 13° / 55°F | 118 mm | 3 | 13° / 55°F |
| September | 32 | 14° / 57°F | 12° / 54°F | 119 mm | 2 | 13° / 55°F |
| October | 20 | 12° / 54°F | 10° / 50°F | 143 mm | 1 | 12° / 54°F |
| November | 10 | 10° / 50°F | 8° / 46°F | 134 mm | 0 | 11° / 52°F |
| December | 0 | 8° / 46°F | 6° / 43°F | 145 mm | 0 | 10° / 50°F |
Sea temperature in Stornoway by month
The sea off Stornoway is warmest in August at around 13°C / 55°F, and coolest in February at 8°C / 46°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Stornoway: questions and answers
What kind of destination is Stornoway?
Stornoway is a seaside town in United Kingdom with a oceanic / maritime climate — the sea reaches 13°C at its warmest.
How many hours of sunshine does Stornoway get a year?
Stornoway gets about 1,212 hours of sunshine a year, at its best around July.
When is the best time to visit Stornoway?
Stornoway is short on reliable sunshine — its best month is only July at 39/100. For a sunnier trip, see the nearest strong-sun alternatives listed on the page.
What is the least sunny month in Stornoway?
January is the least sunny month in Stornoway, scoring 0/100 with about 144 mm of rain.
What is the sea temperature in Stornoway?
The sea in Stornoway ranges from about 8°C (February) to 13°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Stornoway?
The typical midday UV index in Stornoway peaks around 4 (moderate) in June, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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