31.12
wed
wed
Day
19°F
S 22 mph
Precip.
0%
0%
Night
18°F
S 15 mph
Precip.
0%
0%
01.01
thu
thu
Day
18°F
W 3 mph
Precip.
0%
0%
Night
27°F
NW 27 mph
Precip.
0%
0%
02.01
fri
fri
Day
27°F
W 24 mph
Precip.
100%
100%
Night
32°F
W 10 mph
Precip.
100%
100%
03.01
sat
sat
Day
34°F
W 19 mph
Precip.
100%
100%
Night
23°F
S 14 mph
Precip.
81%
81%
04.01
sun
sun
Day
19°F
E 11 mph
Precip.
53%
53%
Night
19°F
E 15 mph
Precip.
0%
0%
05.01
mon
mon
Day
16°F
SE 12 mph
Precip.
0%
0%
Night
14°F
SE 14 mph
Precip.
0%
0%
06.01
tue
tue
Day
23°F
N 5 mph
Precip.
26%
26%
Night
28°F
E 9 mph
Precip.
29%
29%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 37.7°F. The highest and lowest sea temperatures during the month were 41.4°F and 35.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 32.9°F. The highest and lowest sea temperatures during the month were 34.3°F and 31.8°F.
Air temperature in Porvoo, °F
Precipitation total in Porvoo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Porvoo
Porvoo on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Porvoo
Local time: 03:43
December 31, wednesday
0600
19°F
S
25 mph
25 mph
0900
19°F
S
24 mph
24 mph
1200
19°F
S
22 mph
22 mph
1500
19°F
S
21 mph
21 mph
1800
18°F
S
19 mph
19 mph
2100
18°F
S
17 mph
17 mph
January 01, thursday
0000
18°F
S
15 mph
15 mph
0300
16°F
S
11 mph
11 mph
