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Weather & Climate in Suomenniemi, Finland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Suomenniemi has a cool climate with an average annual temperature of 39°F (4°C). Winters average 18°F in January while summers reach 62°F in July. The area gets 293 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 23.9 inches (drier than the 38-inch national average). The area receives 8.4 inches of snow annually. The city sits at an elevation of 420 feet.
Temperature
18°F Jan (-8°C)
62°F Jul (17°C)
| Annual Average | 38.9°F |
| 28% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 420 ft (128 m) |
| Area | 1,567.5 sq mi (4,059.8 km²) |
| Population Density | 1/sq mi |
| Coordinates | 61.3285°N, 27.4478°W |
| Timezone | Europe/Helsinki |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.6.
| Mar 19, 2011 | Finland | M2.6 | 144 km | 3 km |
| Jul 2, 2008 | 9 km NW of Joutseno, Finland | M2.5 | 53 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 1.5 in | |
| February | 18°F (-8°C) | 1.2 in | Coldest, Driest |
| March | 27°F (-3°C) | 1.4 in | |
| April | 36°F (2°C) | 1.3 in | |
| May | 49°F (10°C) | 1.3 in | |
| June | 59°F (15°C) | 2.1 in | |
| July | 62°F (17°C) | 2.7 in | Warmest |
| August | 59°F (15°C) | 3.1 in | Wettest |
| September | 49°F (9°C) | 2.5 in | |
| October | 40°F (4°C) | 2.5 in | |
| November | 30°F (-1°C) | 2.3 in | |
| December | 22°F (-5°C) | 2.0 in |
Suomenniemi has a seasonal temperature swing of 45°F / from 18°F in February to 62°F in July. Total annual precipitation is 23.9 inches, with August being the wettest month (3.1") and February the driest (1.2").