Adak weather by month & the best time to visit
United States · seaside town · oceanic / maritime climate
Adak is short on reliable sunshine. Its best month is August (Score 16/100) — for stronger sun, try one of the nearby alternatives.
When is the best time to visit Adak?
Adak never gets truly sunny weather: August is as good as it gets at 16/100, and January is the low point (0/100). If sunshine is the point of the trip, the nearby alternatives do better.
How sunny is Adak?
Adak isn't a sunny place by world standards: about 1,006 hours of sunshine a year. August (16/100) is noticeably better than January (0). It ranks #579 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,085 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 | 2° / 36°F | 1° / 34°F | 82 mm | 0 | 4° / 39°F |
| February | 0 | 2° / 36°F | 1° / 34°F | 92 mm | 1 | 4° / 39°F |
| March | 0 | 3° / 37°F | 1° / 34°F | 92 mm | 2 | 3° / 37°F |
| April | 0 | 4° / 39°F | 2° / 36°F | 68 mm | 3 | 4° / 39°F |
| May | 0 | 5° / 41°F | 4° / 39°F | 65 mm | 3 | 5° / 41°F |
| June | 0 | 7° / 45°F | 6° / 43°F | 67 mm | 4 | 6° / 43°F |
| July | 5 | 9° / 48°F | 8° / 46°F | 104 mm | 4 | 8° / 46°F |
| August | 16 | 11° / 52°F | 9° / 48°F | 112 mm | 4 | 9° / 48°F |
| September | 11 | 10° / 50°F | 8° / 46°F | 96 mm | 3 | 9° / 48°F |
| October | 0 | 7° / 45°F | 6° / 43°F | 101 mm | 1 | 7° / 45°F |
| November | 0 | 5° / 41°F | 3° / 37°F | 102 mm | 0 | 6° / 43°F |
| December | 0 | 3° / 37°F | 2° / 36°F | 104 mm | 0 | 5° / 41°F |
Sea temperature in Adak by month
The sea off Adak is warmest in August at around 9°C / 48°F, and coolest in March at 3°C / 37°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
Adak: questions and answers
What kind of destination is Adak?
Adak is a seaside town in United States with a oceanic / maritime climate — the sea reaches 9°C at its warmest.
How many hours of sunshine does Adak get a year?
Adak gets about 1,006 hours of sunshine a year, at its best around August.
When is the best time to visit Adak?
Adak is short on reliable sunshine — its best month is only August at 16/100. For a sunnier trip, see the nearest strong-sun alternatives listed on the page.
What is the least sunny month in Adak?
January is the least sunny month in Adak, scoring 0/100 with about 82 mm of rain.
What is the sea temperature in Adak?
The sea in Adak ranges from about 3°C (March) to 9°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Adak?
The typical midday UV index in Adak 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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