Koli National Park Weather: May
 |
Average Day Temperature: | 51.6°F |
|
Average Night Temperature: | 40.2°F |
|
Sea Water Temperature: | 37.3°F |
|
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 16.6 - 19.5 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 1.8 in | |
| detailed information | ||
forecast
| Koli National Park |
Temperature
| Koli National Park |
Air Temperature in May, °F
The highest day temperature in May 2025 was 61°F. The lowest night temperature was 26°F. The average values for day and night temperatures during May were 47.0°F и 37.6°F respectivly.
Koli National Park Water Sea Temperature in May, °F
The average sea surface temperature in May 2025 for Koli National Park was 37.9°F. The maximum and minimum values were 30.6°F and 48.4°F respectively.
Most of the days in May are gloomy but you can also expect sunny days.
Precipitation Totals in May, in
Precipitation total in May for Koli National Park is 1.8 in. It makes may one of the most rainy months of the year.
The average wind speed in May is 7.6 mph. It makes May one of the most windless months of the year for Koli National Park.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Koli National Park in May is 8.8 hours.
Koli National Park on the Weather Map
| Espoo |  |
0 |
| Helsinki | |
+2 |
| Imatra | |
-6 |
| Juvaskyla |  |
+6 |
| Kemi | |
-2 |
| Lahti | |
-6 |
| Lappeenranta | |
-4 |
| Oulu | |
+18 |
| Pori | |
+10 |
| Porvoo | |
+4 |
| Saariselka | |
-20 |
| Seinajoki | |
+14 |
| Turku |  |
0 |
| Vaasa |  |
+22 |
| Vantaa | |
-2 |
| 0000 |  |
4°F | NE 7 mph |
| 0300 | |
2°F | NE 7 mph |
| 0600 | |
4°F | NE 7 mph |
| 0900 |  |
4°F | NE 7 mph |
| 1200 |  |
8°F | NE 7 mph |
| 1500 | |
8°F | N 6 mph |
| 1800 |  |
-2°F | N 6 mph |
| 2100 | |
-6°F | NW 5 mph |