Vaasa weather by month & the best time to visit
Finland · seaside town · continental climate

The best time to visit Vaasa is July — its sunniest month (Sunshine Score 74/100), with August and June close behind. Vaasa averages about 1,870 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 82 mm of rain in July.
When is the best time to visit Vaasa?
For sunshine, the best time to visit Vaasa is July, then August and June. The dullest month is January (0/100, 50 mm of rain). The full month-by-month picture is in the table below.
How sunny is Vaasa?
Vaasa gets a moderate 1,870 hours of sunshine a year. 74 Sunshine Score points separate July (74) from January (0), so the month you pick matters. It ranks #2 of 20 destinations in Finland for annual sunshine, above the national median of 1,638 hours. The year's 727 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 | -3° / 27°F | -8° / 18°F | 50 mm | 0 | 0° / 32°F |
| February | 0 | -3° / 27°F | -9° / 16°F | 40 mm | 0 | 0° / 32°F |
| March | 0 | 1° / 34°F | -6° / 21°F | 38 mm | 1 | 0° / 32°F |
| April | 0 | 7° / 45°F | -1° / 30°F | 45 mm | 2 | 2° / 36°F |
| May | 32 | 13° / 55°F | 4° / 39°F | 63 mm | 3 | 9° / 48°F |
| June | 65 | 18° / 64°F | 9° / 48°F | 65 mm | 4 | 18° / 64°F |
| July | 74 | 21° / 70°F | 13° / 55°F | 82 mm | 4 | 21° / 70°F |
| August | 69 | 19° / 66°F | 12° / 54°F | 78 mm | 3 | 21° / 70°F |
| September | 39 | 14° / 57°F | 8° / 46°F | 68 mm | 2 | 16° / 61°F |
| October | 0 | 7° / 45°F | 2° / 36°F | 75 mm | 0 | 9° / 48°F |
| November | 0 | 2° / 36°F | -1° / 30°F | 66 mm | 0 | 4° / 39°F |
| December | 0 | -1° / 30°F | -5° / 23°F | 57 mm | 0 | 0° / 32°F |
Sea temperature in Vaasa by month
The sea off Vaasa is warmest in July at around 21°C / 70°F, and coolest in January at 0°C / 32°F. The water sits at a comfortable 21°C or warmer roughly 2 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Vaasa: questions and answers
What kind of destination is Vaasa?
Vaasa is a seaside town in Finland with a continental climate — the sea reaches 21°C at its warmest and is swimmable (21°C+) about 2 months a year.
How many hours of sunshine does Vaasa get a year?
Vaasa gets about 1,870 hours of sunshine a year, at its best around July.
When is the best time to visit Vaasa?
The sunniest time to visit Vaasa is July, when the Sunshine Score peaks at 74/100 (with August and June close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Vaasa?
January is the least sunny month in Vaasa, scoring 0/100 with about 50 mm of rain.
What is the sea temperature in Vaasa?
The sea in Vaasa ranges from about 0°C (January) to 21°C (July). Month-by-month sea temperatures are on this page.
How strong is the sun in Vaasa?
The typical midday UV index in Vaasa 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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