World Resorts Iceland Reykjavik Weather

Reykjavik sea water temperature

Current sea water temperature:
+45.1°F
Minimum sea water temperature in May: 51.1°F
Maximum sea water temperature in May: 40.1°F
Average sea water temperature in May: 44.5°F

Sea water temperature for the last 10 days:

May 16 45.1°F May 11 42.8°F
May 15 45.3°F May 10 42.1°F
May 14 45.3°F May 9 42.4°F
May 13 44.4°F May 8 43.0°F
May 12 44.1°F May 7 43.0°F

When is the warmest sea in Reykjavik?

Based on the data about daily sea water temperature for the last three years the warmest sea in Reykjavik was noticed in August, July and September.

Monthly Sea Temperatures in Reykjavik, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 53.6°F. The highest and lowest sea temperatures during the month were 55.9°F and 52.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 53.3°F. The highest and lowest sea temperatures during the month were 55.4°F and 51.8°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 53.7°F. The highest and lowest sea temperatures during the month were 56.7°F and 50.7°F.

Best time for vacation in Reykjavik

Sunniest months:
December 6 days
August 6 days
May 6 days
Warmest months:
July 55.6 °F
August 55.1 °F
June 52.1 °F
Warmest sea temp:
August 53.1 °F
July 52.5 °F
September 50.6 °F
Coldest months:
December 33.2 °F
January 33.3 °F
February 35.1 °F
Rainiest months:
September 9 days
January 8 days
April 7 days
Windiest months:
February 16.5 mph
January 15.7 mph
December 15.3 mph

Reykjavik on a weather map

Reykjavik
+45°F
NW 12 mph
Feels like: +39°F
Precip.: 87%
Places in Iceland:
Name
°F
+50°F
+45°F
+45°F
+45°F
24 Hours Forecast
Reykjavik
Local time: 18:57
May 16, saturday
2100
45°F
NW
9 mph
May 17, sunday
0000
43°F
W
8 mph
0300
41°F
W
7 mph
0600
41°F
W
5 mph
0900
45°F
W
4 mph
1200
45°F
NE
3 mph
1500
45°F
N
6 mph
1800
45°F
NW
4 mph
Units of measurement: °C / °F