World Resorts Iceland Reykjavik Weather

Reykjavik Sea Temperature in September

Average sea water temperature in September:
+50.6°F
Minimum sea water temperature in September: 56.7°F
Maximum sea water temperature in September: 46.4°F

Daily 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.

Monthly sea water temperature in Reykjavik, °F

Which Iceland resorts have warmest sea in September?

Place name September 2025 September 2024
Kopavogur 54.4°F 48.9°F
Reykjavik 53.7°F 48.8°F
Tingvellir 51.6°F 48.3°F
Akureyri 48.2°F 45.7°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 52.0 °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

Current weather
15:29
Reykjavik
+54°F
NE 6 mph
Feels like: +52°F
Precip.: 45%
Places in Iceland:
Name
°F
Akureyri
+66°F
Kopavogur
+54°F
Reykjavik
+54°F
Tingvellir
+54°F
24 Hours Forecast
Reykjavik
Local time: 15:29
July 21, tuesday
1800
54°F
NE
7 mph
2100
54°F
NE
7 mph
July 22, wednesday
0000
52°F
N
6 mph
0300
52°F
N
7 mph
0600
52°F
NW
10 mph
0900
52°F
NW
12 mph
1200
54°F
N
12 mph
1500
54°F
N
11 mph
Units of measurement: °C / °F