31.08
mon
mon
Day
50°F
W 5 mph
Precip.
6%
6%
Night
48°F
SW 10 mph
Precip.
8%
8%
01.09
tue
tue
Day
48°F
SW 2 mph
Precip.
15%
15%
Night
50°F
NW 12 mph
Precip.
26%
26%
02.09
wed
wed
Day
52°F
W 12 mph
Precip.
19%
19%
Night
48°F
W 3 mph
Precip.
16%
16%
03.09
thu
thu
Day
48°F
SW 6 mph
Precip.
17%
17%
Night
48°F
S 13 mph
Precip.
18%
18%
04.09
fri
fri
Day
48°F
SE 9 mph
Precip.
25%
25%
Night
46°F
NE 9 mph
Precip.
21%
21%
05.09
sat
sat
Day
45°F
N 7 mph
Precip.
28%
28%
Night
45°F
N 11 mph
Precip.
26%
26%
06.09
sun
sun
Day
46°F
NW 6 mph
Precip.
31%
31%
Night
46°F
SE 16 mph
Precip.
21%
21%
sea water
temperature
temperature
| Reykjavik |
monthly
weather
weather
| Reykjavik |
current
weather
weather
| Reykjavik |
14 days
forecast
forecast
| Reykjavik |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 53.3°F. The highest and lowest sea temperatures during the month were 54.3°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.
Air temperature in Reykjavik, °F
Precipitation total in Reykjavik, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Reykjavik
Reykjavik on a weather map
24 Hours Forecast
Reykjavik
Local time: 04:57
August 31, monday
0600
48°F
W
11 mph
11 mph
0900
48°F
SW
10 mph
10 mph
1200
50°F
W
5 mph
5 mph
1500
52°F
S
4 mph
4 mph
1800
52°F
SE
12 mph
12 mph
2100
52°F
SW
11 mph
11 mph
September 01, tuesday
0000
48°F
SW
10 mph
10 mph
0300
46°F
SW
10 mph
10 mph
