All Countries
Weather & Climate in Tärnsjö, Sweden
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tärnsjö has a cool climate with an average annual temperature of 42°F (6°C). Winters average 25°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 8.1 inches of snow annually. The city sits at an elevation of 174 feet.
Temperature
25°F Jan (-4°C)
62°F Jul (17°C)
| Annual Average | 42.2°F |
| 22% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 174 ft (53 m) |
| Area | 0.7 sq mi (1.9 km²) |
| Population Density | 1,608/sq mi |
| Coordinates | 60.1500°N, 16.9333°W |
| Timezone | Europe/Stockholm |
Precipitation & Snow
Air Quality
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Dec 12, 1990 | 11 km NW of Irsta, Sweden | M3.9 | 41 km | 10 km |
| Apr 11, 1993 | 2 km NNE of Ludvika, Sweden | M3.7 | 96 km | 10 km |
| Apr 5, 1995 | 9 km N of Åkersberga, Sweden | M2.7 | 101 km | 15 km |
| Mar 30, 1995 | 11 km SSW of Norrtälje, Sweden | M2.7 | 111 km | 10 km |
| Apr 3, 1995 | 14 km NE of Åkersberga, Sweden | M2.6 | 105 km | 10 km |
| Apr 5, 1995 | 6 km NNE of Åkersberga, Sweden | M2.5 | 104 km | 10 km |
| May 12, 2005 | 6 km E of Dalarö, Sweden | M2.5 | 143 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 1.5 in | |
| February | 25°F (-4°C) | 1.1 in | Coldest, Driest |
| March | 31°F (-0°C) | 1.4 in | |
| April | 41°F (5°C) | 1.6 in | |
| May | 50°F (10°C) | 1.4 in | |
| June | 58°F (14°C) | 2.4 in | |
| July | 62°F (17°C) | 3.0 in | Warmest, Wettest |
| August | 60°F (15°C) | 2.8 in | |
| September | 51°F (11°C) | 2.5 in | |
| October | 42°F (5°C) | 2.2 in | |
| November | 34°F (1°C) | 2.2 in | |
| December | 27°F (-3°C) | 1.9 in |
Tärnsjö has a seasonal temperature swing of 37°F / from 25°F in February to 62°F in July. Total annual precipitation is 23.9 inches, with July being the wettest month (3.0") and February the driest (1.1").