Current Sea Water Temperature:
+56.0°F
| Maximum Sea Water Temperature in September: | 66.2°F |
| Minimum Sea Water Temperature in September: | 30.0°F |
| Average water temperature in September: | 57.3°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 28 | 56.0°F | September 23 | 56.8°F |
| September 27 | 55.6°F | September 22 | 56.8°F |
| September 26 | 56.0°F | September 21 | 57.6°F |
| September 25 | 56.4°F | September 20 | 58.0°F |
| September 24 | 56.4°F | September 19 | 58.0°F |
When is the Warmest Sea for Koli National Park?
According to our data for the last three years for Koli National Park the highest average sea water temperature was in July, August and September.
Average Water Temperature by Month, °F
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Koli National Park was 66.3°F. The maximum and minimum values were 62.2°F and 71.0°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2026 for Koli National Park was 64.1°F. The maximum and minimum values were 62.0°F and 67.2°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2026 for Koli National Park was 59.0°F. The maximum and minimum values were 55.6°F and 62.4°F respectively.
Finland Resorts:
NAME
F°
| Espoo |  |
+52 |
| Helsinki | |
+54 |
| Imatra | |
+48 |
| Juvaskyla |  |
+48 |
| Kemi |  |
+52 |
| Kotka |  |
+58 |
| Lahti | |
+48 |
| Lappeenranta | |
+50 |
| Oulu | |
+54 |
| Pori | |
+54 |
| Porvoo | |
+58 |
| Savolinna | |
+48 |
| Turku | |
+56 |
| Vaasa | |
+56 |
| Vantaa | |
+54 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Koli National Park
Local time: 01:00
29 sep, tuesday
| 0300 |  |
48°F | NE 12 mph |
| 0600 | |
48°F | N 12 mph |
| 0900 | |
50°F | N 14 mph |
| 1200 | |
52°F | NE 16 mph |
| 1500 |  |
52°F | NE 20 mph |
| 1800 | |
52°F | E 15 mph |
| 2100 |  |
52°F | SE 12 mph |
30 sep, wednesday
| 0000 | |
48°F | SE 12 mph |