18.12
thu
thu
Day
32°F
N 6 mph
Precip.
0%
0%
Night
34°F
N 16 mph
Precip.
100%
100%
19.12
fri
fri
Day
32°F
NW 7 mph
Precip.
0%
0%
Night
39°F
N 16 mph
Precip.
100%
100%
20.12
sat
sat
Day
37°F
NE 12 mph
Precip.
86%
86%
Night
36°F
NE 17 mph
Precip.
100%
100%
21.12
sun
sun
Day
28°F
E 4 mph
Precip.
0%
0%
Night
28°F
E 5 mph
Precip.
0%
0%
22.12
mon
mon
Day
27°F
E 3 mph
Precip.
0%
0%
Night
23°F
S 5 mph
Precip.
0%
0%
23.12
tue
tue
Day
19°F
SW 9 mph
Precip.
0%
0%
Night
14°F
SW 9 mph
Precip.
0%
0%
24.12
wed
wed
Day
12°F
SW 5 mph
Precip.
0%
0%
Night
12°F
SW 4 mph
Precip.
0%
0%
25.12
thu
thu
Day
12°F
S 4 mph
Precip.
23%
23%
Night
12°F
SW 2 mph
Precip.
0%
0%
26.12
fri
fri
Day
14°F
N 4 mph
Precip.
0%
0%
Night
23°F
N 12 mph
Precip.
64%
64%
27.12
sat
sat
Day
30°F
SE 14 mph
Precip.
0%
0%
Night
23°F
SE 14 mph
Precip.
0%
0%
28.12
sun
sun
Day
18°F
S 7 mph
Precip.
0%
0%
Night
14°F
S 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
12°F
S 6 mph
Precip.
0%
0%
Night
12°F
S 2 mph
Precip.
56%
56%
30.12
tue
tue
Day
9°F
NW 3 mph
Precip.
0%
0%
Night
9°F
S 2 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 34.6°F. The highest and lowest sea temperatures during the month were 36.5°F and 32.5°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 30.5°F. The highest and lowest sea temperatures during the month were 33.3°F and 29.1°F.
Air temperature in Oulu, °F
Precipitation total in Oulu, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Oulu
Oulu on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Oulu
Local time: 00:43
December 18, thursday
0300
32°F
S
6 mph
6 mph
0600
34°F
E
1 mph
1 mph
0900
34°F
NE
4 mph
4 mph
1200
32°F
N
6 mph
6 mph
1500
30°F
NW
9 mph
9 mph
1800
32°F
NW
14 mph
14 mph
2100
34°F
N
14 mph
14 mph
December 19, friday
0000
34°F
N
16 mph
16 mph
