26.08
wed
wed
Day
66°F
NW 1 mph
Precip.
13%
13%
Night
59°F
SW 1 mph
Precip.
15%
15%
27.08
thu
thu
Day
64°F
N 4 mph
Precip.
15%
15%
Night
55°F
SW 4 mph
Precip.
19%
19%
28.08
fri
fri
Day
64°F
W 9 mph
Precip.
13%
13%
Night
55°F
W 7 mph
Precip.
78%
78%
29.08
sat
sat
Day
54°F
S 9 mph
Precip.
88%
88%
Night
54°F
N 2 mph
Precip.
43%
43%
30.08
sun
sun
Day
61°F
N 6 mph
Precip.
6%
6%
Night
54°F
N 2 mph
Precip.
27%
27%
31.08
mon
mon
Day
54°F
SW 2 mph
Precip.
47%
47%
Night
54°F
SW 2 mph
Precip.
37%
37%
01.09
tue
tue
Day
68°F
SE 3 mph
Precip.
4%
4%
Night
59°F
W 2 mph
Precip.
23%
23%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 63.3°F. The highest and lowest sea temperatures during the month were 65.3°F and 61.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 60.7°F. The highest and lowest sea temperatures during the month were 64.8°F and 56.3°F.
Air temperature in Oslo, °F
Precipitation total in Oslo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Oslo
Oslo on a weather map
Places in Norway:
Name
°F
24 Hours Forecast
Oslo
Local time: 00:49
August 26, wednesday
0300
55°F
S
2 mph
2 mph
0600
54°F
SW
2 mph
2 mph
0900
61°F
S
1 mph
1 mph
1200
66°F
NW
1 mph
1 mph
1500
70°F
NW
2 mph
2 mph
1800
72°F
NW
2 mph
2 mph
2100
59°F
SW
2 mph
2 mph
August 27, thursday
0000
59°F
SW
1 mph
1 mph
