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Weather & Climate in Norrtälje, Sweden
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Norrtälje has a cool climate with an average annual temperature of 43°F (6°C). Winters average 27°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 23.7 inches (drier than the 38-inch national average). The area receives 6.1 inches of snow annually. The city sits at an elevation of 43 feet.
Temperature
27°F Jan (-3°C)
62°F Jul (17°C)
| Annual Average | 42.5°F |
| 21% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 43 ft (13 m) |
| Area | 4.2 sq mi (10.9 km²) |
| Population Density | 4,589/sq mi |
| Coordinates | 59.7580°N, 18.7050°W |
| Timezone | Europe/Stockholm |
Precipitation & Snow
Air Quality
Earthquake History
6 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 | 106 km | 10 km |
| Apr 5, 1995 | 9 km N of Åkersberga, Sweden | M2.7 | 31 km | 15 km |
| Mar 30, 1995 | 11 km SSW of Norrtälje, Sweden | M2.7 | 12 km | 10 km |
| Apr 3, 1995 | 14 km NE of Åkersberga, Sweden | M2.6 | 24 km | 10 km |
| Apr 5, 1995 | 6 km NNE of Åkersberga, Sweden | M2.5 | 32 km | 10 km |
| May 12, 2005 | 6 km E of Dalarö, Sweden | M2.5 | 70 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 1.7 in | |
| February | 26°F (-4°C) | 1.1 in | Coldest, Driest |
| March | 31°F (-0°C) | 1.3 in | |
| April | 38°F (4°C) | 1.5 in | |
| May | 49°F (9°C) | 1.3 in | |
| June | 57°F (14°C) | 2.0 in | |
| July | 62°F (17°C) | 2.9 in | Warmest, Wettest |
| August | 60°F (16°C) | 2.6 in | |
| September | 52°F (11°C) | 2.4 in | |
| October | 44°F (7°C) | 2.3 in | |
| November | 36°F (2°C) | 2.6 in | |
| December | 30°F (-1°C) | 2.1 in |
Norrtälje has a seasonal temperature swing of 36°F / from 26°F in February to 62°F in July. Total annual precipitation is 23.7 inches, with July being the wettest month (2.9") and February the driest (1.1").