Measurements:
°C
°F
Vantaa
-2°F
NW 3 mph
Feels like: -8°F
Precip: 0%
World Resorts Finland Vantaa Weather

Vantaa Sea Water Temperature

Current Sea Water Temperature:
+26.8°F
Maximum Sea Water Temperature in February: 35.8°F
Minimum Sea Water Temperature in February: 26.4°F
Average water temperature in February: 30.0°F

Sea Water Temperature for the Last 10 Days:

February 17 26.8°F February 12 27.8°F
February 16 26.8°F February 11 28.0°F
February 15 27.0°F February 10 28.4°F
February 14 27.2°F February 09 26.8°F
February 13 27.4°F February 08 26.8°F

When is the Warmest Sea for Vantaa?

According to our data for the last three years for Vantaa 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 Vantaa was 65.2°F. The maximum and minimum values were 57.6°F and 76.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Vantaa was 64.3°F. The maximum and minimum values were 54.6°F and 77.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Vantaa was 60.6°F. The maximum and minimum values were 55.4°F and 64.6°F respectively.

Best Time to Visit Vantaa
The most sunny months:
June 14 days
July 14 days
May 13 days
The most warm months:
July 72.8 °F
August 70.1 °F
June 67.3 °F
Warmest sea temperature:
August 64.6 °F
July 63.1 °F
September 59.8 °F
The most cold months:
January 23.9 °F
February 26.0 °F
December 30.5 °F
The most rainy months:
October 4 days
August 4 days
September 4 days
The most windy months:
December 10 mph
November 9 mph
January 9 mph

Vantaa on the Weather Map

Finland Resorts:
NAME
Espoo 0
Helsinki +2
Imatra -4
Juvaskyla +8
Kemi -2
Lahti -6
Lappeenranta -4
Oulu +18
Pori +10
Porvoo +4
Saariselka -20
Seinajoki +14
Turku +2
Vaasa +22
Vantaa -2
24 Hours Weather Forecast
Vantaa
Local time: 00:40
18 feb, wednesday
0300 -2°F
NW
3 mph
0600 -4°F
NW
4 mph
0900 0°F
NW
5 mph
1200 10°F
NW
7 mph
1500 12°F
W
7 mph
1800 8°F
W
8 mph
2100 6°F
W
6 mph
19 feb, thursday
0000 10°F
W
6 mph