Measurements:
°C
°F
Tallinn
40°F
N 6 mph
Feels like: 34°F
Precip: 82%
World Resorts Estonia Tallinn Weather

Tallinn Sea Water Temperature

Current Sea Water Temperature:
+41.2°F
Maximum Sea Water Temperature in December: 44.8°F
Minimum Sea Water Temperature in December: 34.2°F
Average water temperature in December: 39.4°F

Sea Water Temperature for the Last 10 Days:

December 05 41.2°F November 30 43.6°F
December 04 41.0°F November 29 44.0°F
December 03 41.2°F November 28 44.4°F
December 02 42.2°F November 27 44.6°F
December 01 43.0°F November 26 45.0°F

When is the Warmest Sea for Tallinn?

According to our data for the last three years for Tallinn 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 Tallinn was 66.7°F. The maximum and minimum values were 63.2°F and 69.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Tallinn was 63.2°F. The maximum and minimum values were 59.2°F and 70.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Tallinn was 60.8°F. The maximum and minimum values were 58.2°F and 64.2°F respectively.

Best Time to Visit Tallinn
The most sunny months:
July 15 days
June 14 days
May 14 days
The most warm months:
July 70.2 °F
August 69.3 °F
June 64.1 °F
Warmest sea temperature:
August 66.7 °F
July 64.3 °F
September 60.9 °F
The most cold months:
January 27.4 °F
February 27.8 °F
December 32.2 °F
The most rainy months:
August 5 days
October 4 days
September 4 days
The most windy months:
December 14 mph
November 12 mph
January 12 mph

Tallinn on the Weather Map

Estonia Resorts:
NAME
Jõhvi +38
Kohtla-Järve +38
Kunda +38
Kuressaare +42
Narva +38
Otepaa +38
Parnu +40
Saaremaa +40
Sillamäe +38
Tallinn +40
Tartu +38
Toila +38
Valga +38
Varska +36
Võru +38
24 Hours Weather Forecast
Tallinn
Local time: 13:07
05 dec, friday
1500 40°F
NW
6 mph
1800 38°F
NW
6 mph
2100 38°F
NW
6 mph
06 dec, saturday
0000 38°F
NW
7 mph
0300 40°F
NW
7 mph
0600 40°F
NW
9 mph
0900 40°F
NW
11 mph
1200 40°F
NW
11 mph