World Resorts Iceland Reykjavik Weather

Reykjavik sea water temperature

Current sea water temperature:
+41.9°F
Minimum sea water temperature in April: 43.9°F
Maximum sea water temperature in April: 36.0°F
Average sea water temperature in April: 39.8°F

Sea water temperature for the last 10 days:

April 26 41.9°F April 21 40.3°F
April 25 39.9°F April 20 40.3°F
April 24 38.5°F April 19 39.9°F
April 23 38.5°F April 18 38.7°F
April 22 39.4°F April 17 38.1°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
+46°F
NW 11 mph
Feels like: +43°F
Precip.: 73%
Places in Iceland:
Name
°F
+46°F
+46°F
+46°F
+48°F
24 Hours Forecast
Reykjavik
Local time: 16:21
April 26, sunday
1800
46°F
NW
14 mph
2100
45°F
NW
17 mph
April 27, monday
0000
46°F
NW
20 mph
0300
46°F
NW
23 mph
0600
45°F
NW
23 mph
0900
45°F
NW
9 mph
1200
45°F
NW
14 mph
1500
46°F
NW
24 mph
Units of measurement: °C / °F