17.09
thu
thu
Day
45°F
E 4 mph
Precip.
34%
34%
Night
41°F
SW 3 mph
Precip.
28%
28%
18.09
fri
fri
Day
45°F
SW 7 mph
Precip.
26%
26%
Night
43°F
S 6 mph
Precip.
34%
34%
19.09
sat
sat
Day
46°F
NE 5 mph
Precip.
16%
16%
Night
41°F
N 3 mph
Precip.
20%
20%
20.09
sun
sun
Day
45°F
W 2 mph
Precip.
26%
26%
Night
45°F
W 19 mph
Precip.
64%
64%
21.09
mon
mon
Day
48°F
N 23 mph
Precip.
60%
60%
Night
45°F
NE 15 mph
Precip.
52%
52%
22.09
tue
tue
Day
43°F
NE 24 mph
Precip.
45%
45%
Night
41°F
NE 12 mph
Precip.
40%
40%
23.09
wed
wed
Day
46°F
NE 15 mph
Precip.
39%
39%
Night
45°F
SW 9 mph
Precip.
30%
30%
sea water
temperature
temperature
| Tingvellir |
monthly
weather
weather
| Tingvellir |
current
weather
weather
| Tingvellir |
14 days
forecast
forecast
| Tingvellir |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 51.7°F. The highest and lowest sea temperatures during the month were 52.7°F and 50.7°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 46.7°F. The highest and lowest sea temperatures during the month were 49.1°F and 45.0°F.
Air temperature in Tingvellir, °F
Precipitation total in Tingvellir, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Tingvellir
Tingvellir on a weather map
24 Hours Forecast
Tingvellir
Local time: 14:41
September 17, thursday
1500
45°F
SE
6 mph
6 mph
1800
45°F
E
3 mph
3 mph
2100
43°F
S
3 mph
3 mph
September 18, friday
0000
41°F
SW
3 mph
3 mph
0300
41°F
W
2 mph
2 mph
0600
41°F
N
6 mph
6 mph
0900
43°F
W
2 mph
2 mph
1200
45°F
SW
7 mph
7 mph
