Measurements:
°C
°F
Reykjavik
32°F
SW 11 mph
Feels like: 22°F
Precip: 75%
World Resorts Iceland Reykjavik Weather

Reykjavik Sea Water Temperature

Current Sea Water Temperature:
+39.6°F
Maximum Sea Water Temperature in December: 42.0°F
Minimum Sea Water Temperature in December: 31.2°F
Average water temperature in December: 37.4°F

Sea Water Temperature for the Last 10 Days:

December 05 39.6°F November 30 40.8°F
December 04 39.8°F November 29 41.2°F
December 03 40.4°F November 28 41.8°F
December 02 40.6°F November 27 41.6°F
December 01 40.8°F November 26 41.6°F

When is the Warmest Sea for Reykjavik?

According to our data for the last three years for Reykjavik 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 Reykjavik was 54.0°F. The maximum and minimum values were 52.2°F and 56.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Reykjavik was 53.7°F. The maximum and minimum values were 52.0°F and 56.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Reykjavik was 54.2°F. The maximum and minimum values were 50.8°F and 57.4°F respectively.

Best Time to Visit Reykjavik
The most sunny months:
August 6 days
May 6 days
December 6 days
The most warm months:
July 56.2 °F
August 55.6 °F
June 52.3 °F
Warmest sea temperature:
August 53.4 °F
July 52.8 °F
September 50.6 °F
The most cold months:
December 30.9 °F
January 31.5 °F
February 33.7 °F
The most rainy months:
September 9 days
January 9 days
February 8 days
The most windy months:
February 17 mph
January 16 mph
December 15 mph

Reykjavik on the Weather Map

Iceland Resorts:
NAME
Akureyri +20
Kopavogur +32
Reykjavik +32
Tingvellir +28
24 Hours Weather Forecast
Reykjavik
Local time: 08:24
05 dec, friday
0900 32°F
SW
11 mph
1200 34°F
SW
11 mph
1500 32°F
SW
11 mph
1800 32°F
SW
11 mph
2100 30°F
SW
12 mph
06 dec, saturday
0000 30°F
SW
10 mph
0300 32°F
SW
9 mph
0600 34°F
SW
9 mph