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Weather & Climate in Nagu, Finland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nagu has a cool climate with an average annual temperature of 42°F (6°C). Winters average 26°F in January while summers reach 62°F in July. The area gets 289 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 25.8 inches (drier than the 38-inch national average). The area receives 7.6 inches of snow annually. The city sits at an elevation of 7 feet.
Temperature
26°F Jan (-3°C)
62°F Jul (16°C)
| Annual Average | 42.0°F |
| 22% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 62°F (16°C) |
| Sunny Days | 289 days/yr |
Geography
| Elevation | 7 ft (2 m) |
| Area | 19.7 sq mi (51.1 km²) |
| Population Density | 71/sq mi |
| Coordinates | 60.1938°N, 21.9097°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 | 56 km | 0 km |
| May 12, 2005 | 29 km SSE of Hanko, Finland | M2.7 | 96 km | 0 km |
| May 12, 2005 | 28 km SSE of Hanko, Finland | M2.7 | 97 km | 0 km |
| May 12, 2005 | 28 km SE of Hanko, Finland | M2.7 | 99 km | 0 km |
| May 24, 1995 | 8 km ENE of Nagu, Finland | M2.7 | 9 km | 10 km |
| Mar 9, 2005 | Baltic Sea | M2.6 | 59 km | 0 km |
| Mar 9, 2005 | 30 km SSW of Dragsfjärd, Finland | M2.6 | 48 km | 0 km |
| Mar 9, 2005 | 49 km SSW of Dragsfjärd, Finland | M2.5 | 60 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 1.9 in | |
| February | 24°F (-5°C) | 1.5 in | Coldest |
| March | 29°F (-2°C) | 1.7 in | |
| April | 37°F (3°C) | 1.5 in | |
| May | 48°F (9°C) | 1.3 in | Driest |
| June | 57°F (14°C) | 1.7 in | |
| July | 62°F (16°C) | 2.5 in | Warmest |
| August | 60°F (16°C) | 2.7 in | |
| September | 52°F (11°C) | 2.6 in | |
| October | 44°F (7°C) | 2.9 in | |
| November | 36°F (2°C) | 3.0 in | Wettest |
| December | 30°F (-1°C) | 2.6 in |
Nagu has a seasonal temperature swing of 38°F / from 24°F in February to 62°F in July. Total annual precipitation is 25.8 inches, with November being the wettest month (3.0") and May the driest (1.3").