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:
August 6 days
May 6 days
December 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 33.4 °F
February 35.4 °F
Rainiest months:
September 9 days
January 9 days
February 8 days
Windiest months:
February 16.9 mph
January 15.9 mph
December 15.4 mph

Reykjavik on a weather map

Current weather
08:03
Reykjavik
+39°F
W 2 mph
Feels like: +39°F
Precip.: 0%
Places in Iceland:
Name
°F
Akureyri
+25°F
Kopavogur
+39°F
Reykjavik
+39°F
Tingvellir
+34°F
24 Hours Forecast
Reykjavik
Local time: 08:03
December 29, monday
0900
39°F
W
2 mph
1200
39°F
NW
5 mph
1500
41°F
N
4 mph
1800
41°F
NE
2 mph
2100
41°F
E
5 mph
December 30, tuesday
0000
41°F
SE
8 mph
0300
41°F
E
11 mph
0600
43°F
SE
11 mph
Units of measurement: °C / °F