18.05
mon
mon
Day
52°F
E 5 mph
Precip.
0%
0%
Night
52°F
SW 6 mph
Precip.
0%
0%
19.05
tue
tue
Day
63°F
W 14 mph
Precip.
0%
0%
Night
55°F
W 16 mph
Precip.
0%
0%
20.05
wed
wed
Day
70°F
NW 12 mph
Precip.
0%
0%
Night
50°F
E 7 mph
Precip.
0%
0%
21.05
thu
thu
Day
59°F
NE 6 mph
Precip.
0%
0%
Night
52°F
N 6 mph
Precip.
0%
0%
22.05
fri
fri
Day
54°F
NE 11 mph
Precip.
100%
100%
Night
48°F
SE 4 mph
Precip.
0%
0%
23.05
sat
sat
Day
52°F
S 9 mph
Precip.
0%
0%
Night
46°F
N 8 mph
Precip.
0%
0%
24.05
sun
sun
Day
48°F
N 11 mph
Precip.
100%
100%
Night
48°F
SE 11 mph
Precip.
0%
0%
25.05
mon
mon
Day
43°F
S 20 mph
Precip.
100%
100%
Night
39°F
SW 6 mph
Precip.
0%
0%
26.05
tue
tue
Day
50°F
SE 4 mph
Precip.
0%
0%
Night
46°F
N 4 mph
Precip.
0%
0%
27.05
wed
wed
Day
57°F
N 8 mph
Precip.
0%
0%
Night
50°F
N 11 mph
Precip.
0%
0%
28.05
thu
thu
Day
57°F
N 10 mph
Precip.
0%
0%
Night
48°F
NW 2 mph
Precip.
100%
100%
29.05
fri
fri
Day
57°F
NE 2 mph
Precip.
100%
100%
Night
48°F
NE 6 mph
Precip.
0%
0%
30.05
sat
sat
Day
55°F
N 7 mph
Precip.
0%
0%
Night
50°F
NW 2 mph
Precip.
0%
0%
31.05
sun
sun
Day
61°F
N 7 mph
Precip.
80%
80%
Night
50°F
N 7 mph
Precip.
100%
100%
sea water
temperature
temperature
| Koli National Park |
monthly
weather
weather
| Koli National Park |
current
weather
weather
| Koli National Park |
7 days
forecast
forecast
| Koli National Park |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 34.0°F. The highest and lowest sea temperatures during the month were 39.4°F and 32.5°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 54.7°F. The highest and lowest sea temperatures during the month were 58.5°F and 47.7°F.
Air temperature in Koli National Park, °F
Precipitation total in Koli National Park, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Koli National Park
Koli National Park on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Koli National Park
Local time: 17:25
May 18, monday
1800
55°F
NE
2 mph
2 mph
2100
52°F
SE
2 mph
2 mph
May 19, tuesday
0000
52°F
SW
6 mph
6 mph
0300
52°F
SW
6 mph
6 mph
0600
52°F
SW
9 mph
9 mph
0900
57°F
W
12 mph
12 mph
1200
63°F
W
14 mph
14 mph
1500
66°F
W
14 mph
14 mph
