Current Sea Water Temperature:
+39.2°F
| Maximum Sea Water Temperature in December: | 42.0°F |
| Minimum Sea Water Temperature in December: | 31.2°F |
| Average water temperature in December: | 37.5°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| December 14 | 39.2°F | December 09 | 38.8°F |
| December 13 | 38.8°F | December 08 | 39.2°F |
| December 12 | 38.6°F | December 07 | 38.8°F |
| December 11 | 38.2°F | December 06 | 38.6°F |
| December 10 | 38.6°F | December 05 | 39.6°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
The average sea surface temperature in August 2025 for Reykjavik was 54.0°F. The maximum and minimum values were 52.2°F and 56.6°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Reykjavik was 53.7°F. The maximum and minimum values were 52.0°F and 56.0°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Reykjavik was 54.2°F. The maximum and minimum values were 50.8°F and 57.4°F respectively.
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Reykjavik
Local time: 09:05
14 dec, sunday
| 1200 |  |
34°F | NW 4 mph |
| 1500 |  |
34°F | W 7 mph |
| 1800 |  |
34°F | W 6 mph |
| 2100 |  |
34°F | SW 7 mph |
15 dec, monday
| 0000 | |
32°F | SW 5 mph |
| 0300 | |
32°F | SW 8 mph |
| 0600 | |
32°F | SW 7 mph |
| 0900 | |
30°F | SW 8 mph |