Measurements:
°C
°F
Vaasa
56°F
N 15 mph
Feels like: 50°F
Precip: 67%
World Resorts Finland Vaasa Weather

Vaasa Sea Water Temperature

Current Sea Water Temperature:
+54.8°F
Maximum Sea Water Temperature in September: 66.6°F
Minimum Sea Water Temperature in September: 48.4°F
Average water temperature in September: 57.2°F

Sea Water Temperature for the Last 10 Days:

September 28 54.8°F September 23 55.4°F
September 27 55.4°F September 22 56.6°F
September 26 54.8°F September 21 56.8°F
September 25 54.4°F September 20 57.2°F
September 24 54.4°F September 19 57.4°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Vaasa was 63.2°F. The maximum and minimum values were 61.8°F and 65.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Vaasa was 66.5°F. The maximum and minimum values were 63.6°F and 69.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Vaasa was 58.6°F. The maximum and minimum values were 54.4°F and 63.4°F respectively.

Best Time to Visit Vaasa
The most sunny months:
June 14 days
July 14 days
May 13 days
The most warm months:
July 66.1 °F
August 65.1 °F
June 58.4 °F
Warmest sea temperature:
August 64.8 °F
July 64.7 °F
September 57.2 °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
F°
Espoo +52
Helsinki +54
Imatra +48
Juvaskyla +48
Kemi +52
Kotka +56
Lahti +50
Lappeenranta +50
Oulu +52
Pori +56
Porvoo +56
Savolinna +48
Turku +58
Vaasa +56
Vantaa +54
24 Hours Weather Forecast
Vaasa
Local time: 01:42
29 sep, tuesday
0300 56°F
N
15 mph
0600 56°F
NE
14 mph
0900 54°F
SE
11 mph
1200 54°F
SE
9 mph
1500 54°F
SE
8 mph
1800 54°F
E
7 mph
2100 52°F
SE
8 mph
30 sep, wednesday
0000 52°F
SE
7 mph