Measurements:
°C
°F
Vaasa
58°F
SE 5 mph
Feels like: 58°F
Precip: 0%
World Resorts Finland Vaasa Weather

Vaasa Sea Water Temperature

Current Sea Water Temperature:
+56.2°F
Maximum Sea Water Temperature in May: 58.2°F
Minimum Sea Water Temperature in May: 32.8°F
Average water temperature in May: 43.4°F

Sea Water Temperature for the Last 10 Days:

May 30 56.2°F May 25 54.6°F
May 29 56.6°F May 24 54.2°F
May 28 56.2°F May 23 53.0°F
May 27 56.6°F May 22 52.0°F
May 26 55.6°F May 21 50.6°F

When is the Warmest Sea for Vaasa?

According to our data for the last three years for Vaasa the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Vaasa was 66.1°F. The maximum and minimum values were 59.4°F and 75.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Vaasa was 67.3°F. The maximum and minimum values were 59.4°F and 76.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Vaasa was 58.6°F. The maximum and minimum values were 51.4°F and 63.2°F respectively.

Best Time to Visit Vaasa
The most sunny months:
July 15 days
June 14 days
May 13 days
The most warm months:
July 66.2 °F
August 65.2 °F
June 58.3 °F
Warmest sea temperature:
August 64.9 °F
July 64.6 °F
September 57.1 °F
The most cold months:
January 22.7 °F
February 23.7 °F
December 29.5 °F
The most rainy months:
August 5 days
July 4 days
October 4 days
The most windy months:
December 12 mph
November 12 mph
October 12 mph

Vaasa on the Weather Map

Finland Resorts:
NAME
Espoo +68
Helsinki +64
Imatra +56
Juvaskyla +66
Kemi +46
Koli National Park +58
Kotka +58
Lahti +66
Oulu +58
Pori +66
Porvoo +58
Saariselka +46
Turku +68
Vaasa +58
Vantaa +68
24 Hours Weather Forecast
Vaasa
Local time: 12:08
30 may, saturday
1500 60°F
SE
5 mph
1800 58°F
S
8 mph
2100 52°F
S
6 mph
31 may, sunday
0000 50°F
SW
6 mph
0300 48°F
SW
6 mph
0600 50°F
SW
4 mph
0900 56°F
SW
3 mph
1200 60°F
S
4 mph