Measurements:
°C
°F
Vaasa
58°F
SE 7 mph
Feels like: 58°F
Precip: 50%
World Resorts Finland Vaasa Weather

Vaasa Sea Water Temperature

Current Sea Water Temperature:
+62.0°F
Maximum Sea Water Temperature in August: 75.6°F
Minimum Sea Water Temperature in August: 58.8°F
Average water temperature in August: 64.8°F

Sea Water Temperature for the Last 10 Days:

August 19 62.0°F August 14 61.8°F
August 18 62.8°F August 13 62.2°F
August 17 63.6°F August 12 62.2°F
August 16 63.4°F August 11 62.4°F
August 15 62.4°F August 10 63.2°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 63.5°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: 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:
June 14 days
July 14 days
May 13 days
The most warm months:
July 66.1 °F
August 65.2 °F
June 58.4 °F
Warmest sea temperature:
August 64.9 °F
July 64.7 °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 +72
Helsinki +70
Juvaskyla +58
Kemi +58
Kotka +64
Lahti +68
Lappeenranta +60
Oulu +62
Pori +64
Saariselka +58
Savolinna +54
Seinajoki +64
Turku +66
Vaasa +58
Vantaa +70
24 Hours Weather Forecast
Vaasa
Local time: 15:36
19 aug, wednesday
1800 58°F
S
7 mph
2100 54°F
SE
5 mph
20 aug, thursday
0000 52°F
SE
4 mph
0300 52°F
E
4 mph
0600 50°F
N
3 mph
0900 54°F
N
6 mph
1200 62°F
NE
11 mph
1500 62°F
NE
12 mph