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Weather & Climate in Uusikaupunki, Finland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Uusikaupunki 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 294 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 23.4 inches (drier than the 38-inch national average). The area receives 8.9 inches of snow annually. The city sits at an elevation of 52 feet.
Temperature
23°F Jan (-5°C)
61°F Jul (16°C)
| Annual Average | 40.9°F |
| 24% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 294 days/yr |
Geography
| Elevation | 52 ft (16 m) |
| Area | 1,020.0 sq mi (2,641.8 km²) |
| Population Density | 14/sq mi |
| Coordinates | 60.8004°N, 21.4084°W |
| Timezone | Europe/Helsinki |
Precipitation & Snow
Air Quality
Earthquake History
5 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 | 125 km | 0 km |
| May 24, 1995 | 8 km ENE of Nagu, Finland | M2.7 | 74 km | 10 km |
| Mar 9, 2005 | Baltic Sea | M2.6 | 132 km | 0 km |
| Mar 9, 2005 | 30 km SSW of Dragsfjärd, Finland | M2.6 | 121 km | 0 km |
| Mar 9, 2005 | 49 km SSW of Dragsfjärd, Finland | M2.5 | 132 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) | 1.7 in | |
| February | 22°F (-5°C) | 1.2 in | Coldest |
| March | 29°F (-2°C) | 1.4 in | |
| April | 37°F (3°C) | 1.3 in | |
| May | 47°F (9°C) | 1.2 in | Driest |
| June | 56°F (13°C) | 1.8 in | |
| July | 61°F (16°C) | 2.4 in | Warmest |
| August | 59°F (15°C) | 2.8 in | Wettest |
| September | 51°F (11°C) | 2.5 in | |
| October | 43°F (6°C) | 2.5 in | |
| November | 34°F (1°C) | 2.5 in | |
| December | 28°F (-2°C) | 2.1 in |
Uusikaupunki has a seasonal temperature swing of 39°F / from 22°F in February to 61°F in July. Total annual precipitation is 23.4 inches, with August being the wettest month (2.8") and May the driest (1.2").