Measurements:
°C
°F
Reykjavik
46°F
SW 12 mph
Feels like: 40°F
Precip: 23%
World Resorts Iceland Reykjavik Weather

Reykjavik Sea Water Temperature

Current Sea Water Temperature:
+50.0°F
Maximum Sea Water Temperature in September: 57.4°F
Minimum Sea Water Temperature in September: 46.0°F
Average water temperature in September: 50.7°F

Sea Water Temperature for the Last 10 Days:

September 28 50.0°F September 23 50.6°F
September 27 50.4°F September 22 50.8°F
September 26 50.2°F September 21 50.6°F
September 25 50.0°F September 20 51.0°F
September 24 50.4°F September 19 51.0°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Reykjavik was 53.6°F. The maximum and minimum values were 52.0°F and 54.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Reykjavik was 53.4°F. The maximum and minimum values were 51.8°F and 54.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Reykjavik was 51.7°F. The maximum and minimum values were 50.0°F and 53.8°F respectively.

Best Time to Visit Reykjavik
The most sunny months:
August 7 days
December 6 days
May 6 days
The most warm months:
July 56.0 °F
August 55.3 °F
June 52.2 °F
Warmest sea temperature:
August 53.4 °F
July 52.8 °F
September 50.7 °F
The most cold months:
December 31.3 °F
January 31.5 °F
February 33.4 °F
The most rainy months:
September 8 days
January 8 days
April 7 days
The most windy months:
February 16 mph
January 16 mph
December 15 mph

Reykjavik on the Weather Map

Iceland Resorts:
NAME
F°
Akureyri +36
Kopavogur +46
Reykjavik +46
Tingvellir +40
24 Hours Weather Forecast
Reykjavik
Local time: 22:43
29 sep, tuesday
0000 46°F
SW
12 mph
0300 46°F
SW
14 mph
0600 46°F
SW
14 mph
0900 44°F
SW
21 mph
1200 50°F
SW
16 mph
1500 52°F
NW
24 mph
1800 52°F
NW
25 mph
2100 52°F
NW
31 mph