18.12
thu
thu
Day
43°F
N 16 mph
Precip.
100%
100%
Night
43°F
N 7 mph
Precip.
100%
100%
19.12
fri
fri
Day
45°F
NE 12 mph
Precip.
0%
0%
Night
45°F
N 12 mph
Precip.
0%
0%
20.12
sat
sat
Day
39°F
NE 4 mph
Precip.
0%
0%
Night
32°F
S 4 mph
Precip.
0%
0%
21.12
sun
sun
Day
34°F
S 3 mph
Precip.
0%
0%
Night
30°F
S 2 mph
Precip.
0%
0%
22.12
mon
mon
Day
32°F
SE 2 mph
Precip.
0%
0%
Night
30°F
S 3 mph
Precip.
0%
0%
23.12
tue
tue
Day
32°F
SW 7 mph
Precip.
100%
100%
Night
28°F
SW 11 mph
Precip.
100%
100%
24.12
wed
wed
Day
25°F
SW 10 mph
Precip.
0%
0%
Night
19°F
S 8 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 42.2°F. The highest and lowest sea temperatures during the month were 45.0°F and 40.3°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 36.1°F. The highest and lowest sea temperatures during the month were 40.5°F and 31.3°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: 09:08
December 18, thursday
1200
43°F
N
16 mph
16 mph
1500
48°F
NE
12 mph
12 mph
1800
43°F
N
8 mph
8 mph
2100
41°F
N
8 mph
8 mph
December 19, friday
0000
43°F
N
7 mph
7 mph
0300
43°F
N
11 mph
11 mph
0600
46°F
N
15 mph
15 mph
0900
48°F
N
14 mph
14 mph
