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Weather & Climate in Vehmaa, Finland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Vehmaa has a cool climate with an average annual temperature of 41°F (5°C). Winters average 23°F in January while summers reach 61°F in July. The area gets 291 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 24.8 inches (drier than the 38-inch national average). The area receives 9.1 inches of snow annually. The city sits at an elevation of 23 feet.
Temperature
23°F Jan (-5°C)
61°F Jul (16°C)
| Annual Average | 40.7°F |
| 25% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 291 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 289.8 sq mi (750.5 km²) |
| Population Density | 8/sq mi |
| Coordinates | 60.6833°N, 21.6667°W |
| Timezone | Europe/Helsinki |
Precipitation & Snow
Air Quality
Earthquake History
8 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.8.
| Mar 9, 2005 | 56 km ESE of Kökar, Aland Islands | M2.8 | 111 km | 0 km |
| May 12, 2005 | 29 km SSE of Hanko, Finland | M2.7 | 146 km | 0 km |
| May 12, 2005 | 28 km SSE of Hanko, Finland | M2.7 | 147 km | 0 km |
| May 12, 2005 | 28 km SE of Hanko, Finland | M2.7 | 146 km | 0 km |
| May 24, 1995 | 8 km ENE of Nagu, Finland | M2.7 | 56 km | 10 km |
| Mar 9, 2005 | Baltic Sea | M2.6 | 115 km | 0 km |
| Mar 9, 2005 | 30 km SSW of Dragsfjärd, Finland | M2.6 | 104 km | 0 km |
| Mar 9, 2005 | 49 km SSW of Dragsfjärd, Finland | M2.5 | 116 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.8 in | |
| February | 22°F (-6°C) | 1.2 in | Coldest, Driest |
| March | 29°F (-2°C) | 1.5 in | |
| April | 37°F (3°C) | 1.5 in | |
| May | 48°F (9°C) | 1.3 in | |
| June | 57°F (14°C) | 2.0 in | |
| July | 61°F (16°C) | 2.8 in | Warmest |
| August | 59°F (15°C) | 3.0 in | Wettest |
| September | 51°F (10°C) | 2.5 in | |
| October | 42°F (6°C) | 2.6 in | |
| November | 33°F (1°C) | 2.5 in | |
| December | 27°F (-3°C) | 2.2 in |
Vehmaa has a seasonal temperature swing of 39°F / from 22°F in February to 61°F in July. Total annual precipitation is 24.8 inches, with August being the wettest month (3.0") and February the driest (1.2").