Measurements:
°C
°F
Vasteras
42°F
W 9 mph
Feels like: 36°F
Precip: 100%
World Resorts Sweden Vasteras Weather

Vasteras Sea Water Temperature

Current Sea Water Temperature:
+37.6°F
Maximum Sea Water Temperature in December: 43.8°F
Minimum Sea Water Temperature in December: 29.4°F
Average water temperature in December: 38.0°F

Sea Water Temperature for the Last 10 Days:

December 05 37.6°F November 30 39.6°F
December 04 37.4°F November 29 40.4°F
December 03 37.2°F November 28 42.4°F
December 02 39.4°F November 27 42.6°F
December 01 39.4°F November 26 42.8°F

When is the Warmest Sea for Vasteras?

According to our data for the last three years for Vasteras 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 Vasteras was 67.8°F. The maximum and minimum values were 63.6°F and 72.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Vasteras was 68.1°F. The maximum and minimum values were 62.0°F and 75.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Vasteras was 62.9°F. The maximum and minimum values were 59.4°F and 65.8°F respectively.

Best Time to Visit Vasteras
The most sunny months:
June 13 days
May 12 days
July 11 days
The most warm months:
July 72.5 °F
August 70.4 °F
June 68.7 °F
Warmest sea temperature:
August 63.9 °F
July 60.6 °F
September 59.2 °F
The most cold months:
January 27.6 °F
February 30.5 °F
December 31.0 °F
The most rainy months:
July 4 days
June 3 days
August 3 days
The most windy months:
January 9 mph
December 9 mph
February 9 mph

Vasteras on the Weather Map

Sweden Resorts:
NAME
Gothenburg +40
Helsinborg +38
Jonkoping +38
Karlstad +40
Kristianstad +40
Lund +38
Malmo +40
Orebro +40
Ostersund +32
Stockholm +42
Sundsvall +36
Uppsala +42
Vasteras +42
24 Hours Weather Forecast
Vasteras
Local time: 05:15
06 dec, saturday
0600 42°F
W
9 mph
0900 42°F
W
8 mph
1200 42°F
W
4 mph
1500 42°F
N
3 mph
1800 40°F
N
4 mph
2100 40°F
N
3 mph
07 dec, sunday
0000 40°F
N
4 mph
0300 38°F
N
4 mph