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Weather & Climate in Kustavi, Finland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kustavi has a cool climate with an average annual temperature of 41°F (5°C). Winters average 24°F in January while summers reach 61°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 23.7 inches (drier than the 38-inch national average). The area receives 9.3 inches of snow annually. The city sits at an elevation of 46 feet.
Temperature
24°F Jan (-5°C)
61°F Jul (16°C)
| Annual Average | 41.2°F |
| 24% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 1,020.0 sq mi (2,641.8 km²) |
| Population Density | 1/sq mi |
| Coordinates | 60.5453°N, 21.3588°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 | 98 km | 0 km |
| May 12, 2005 | 29 km SSE of Hanko, Finland | M2.7 | 145 km | 0 km |
| May 12, 2005 | 28 km SSE of Hanko, Finland | M2.7 | 146 km | 0 km |
| May 12, 2005 | 28 km SE of Hanko, Finland | M2.7 | 147 km | 0 km |
| May 24, 1995 | 8 km ENE of Nagu, Finland | M2.7 | 53 km | 10 km |
| Mar 9, 2005 | Baltic Sea | M2.6 | 107 km | 0 km |
| Mar 9, 2005 | 30 km SSW of Dragsfjärd, Finland | M2.6 | 97 km | 0 km |
| Mar 9, 2005 | 49 km SSW of Dragsfjärd, Finland | M2.5 | 107 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 1.7 in | |
| February | 23°F (-5°C) | 1.3 in | Coldest |
| March | 29°F (-2°C) | 1.5 in | |
| April | 36°F (2°C) | 1.3 in | |
| May | 47°F (8°C) | 1.1 in | Driest |
| June | 56°F (13°C) | 1.7 in | |
| July | 61°F (16°C) | 2.4 in | Warmest |
| August | 60°F (15°C) | 2.8 in | Wettest |
| September | 52°F (11°C) | 2.5 in | |
| October | 43°F (6°C) | 2.6 in | |
| November | 35°F (2°C) | 2.6 in | |
| December | 29°F (-2°C) | 2.2 in |
Kustavi has a seasonal temperature swing of 38°F / from 23°F in February to 61°F in July. Total annual precipitation is 23.7 inches, with August being the wettest month (2.8") and May the driest (1.1").