Current sea water temperature:
+40.3°F
| Minimum sea water temperature in December: | 42.8°F |
| Maximum sea water temperature in December: | 33.1°F |
| Average sea water temperature in December: | 38.7°F |
| more information | |
14 days
forecast
forecast
| Reykjavik |
monthly
weather
weather
| Reykjavik |
Sea water temperature for the last 10 days:
| December 14 | 40.3°F | December 9 | 39.9°F |
| December 13 | 39.9°F | December 8 | 40.3°F |
| December 12 | 39.7°F | December 7 | 39.9°F |
| December 11 | 39.4°F | December 6 | 39.7°F |
| December 10 | 39.7°F | December 5 | 40.6°F |
Monthly sea water temperature, °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.
current
weather
weather
| Reykjavik |
weather in
December
December
| Reykjavik |
Best time for vacation in Reykjavik
Reykjavik on a weather map
24 Hours Forecast
Reykjavik
Local time: 02:18
December 15, monday
0300
32°F
SW
10 mph
10 mph
0600
32°F
SW
10 mph
10 mph
0900
32°F
SW
11 mph
11 mph
1200
32°F
SW
11 mph
11 mph
1500
32°F
S
10 mph
10 mph
1800
30°F
S
9 mph
9 mph
2100
30°F
S
8 mph
8 mph
December 16, tuesday
0000
30°F
S
5 mph
5 mph
