Sundsvall Climate by Month
Sundsvall, Västernorrland, Sweden
Mild summers and freezing winters, with rain spread through the year.
Mild summers and freezing winters, with rain spread through the year: that's Sundsvall's climate in short. Afternoon highs range from 29°F (-1°C) in January to 70°F (21°C) in July, and February nights average 15°F (-9°C). About 28 in (713 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 83% relative humidity.
- Warmest month
- 70°F(21°C)
- Average high, July
- Coldest nights
- 15°F(-9°C)
- Average low, February
- Rain per year
- 28 in(713 mm)
- No clear rainy season
- Humidity
- 83%
- Sunniest: June
Best and worst months in Sundsvall
Best for weatherThe most comfortable weather comes in June and July, with highs around 67°F (20°C) and about 2.8 in (70 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 29°F (-1°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Sundsvall weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 29°F(-1°C) | 16°F(-9°C) | 2.1 in(53 mm) | 96% | 0.2 |
| FebFebruary | 31°F(0°C) | 15°F(-9°C) | 1.4 in(36 mm) | 94% | 0.8 |
| MarMarch | 38°F(3°C) | 21°F(-6°C) | 1.5 in(39 mm) | 72% | 2.3 |
| AprApril | 47°F(8°C) | 30°F(-1°C) | 1.6 in(40 mm) | 76% | 3.7 |
| MayMay | 57°F(14°C) | 38°F(3°C) | 1.8 in(45 mm) | 63% | 4.9 |
| JunJuneBest | 65°F(18°C) | 47°F(8°C) | 2.4 in(62 mm) | 66% | 5.5 |
| JulJulyBest | 70°F(21°C) | 52°F(11°C) | 3.1 in(78 mm) | 77% | 5.2 |
| AugAugust | 67°F(20°C) | 50°F(10°C) | 3.2 in(82 mm) | 78% | 4.0 |
| SepSeptember | 58°F(15°C) | 42°F(6°C) | 2.5 in(64 mm) | 81% | 2.5 |
| OctOctober | 46°F(8°C) | 33°F(1°C) | 3.3 in(83 mm) | 96% | 1.0 |
| NovNovember | 36°F(2°C) | 27°F(-3°C) | 2.8 in(71 mm) | 100% | 0.3 |
| DecDecember | 31°F(0°C) | 20°F(-7°C) | 2.4 in(60 mm) | 100% | 0.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
All 20 places like Sundsvall →- 🇸🇪ÖrnsköldsvikVästernorrland, Sweden · Pop. 32k98%matchSame summer highsSame winter lowsSundsvall vs Örnsköldsvik →
- 🇫🇮PorvooUusimaa, Finland · Pop. 52k97%matchSame winter lowsSame humiditySundsvall vs Porvoo →
- 🇸🇪BorlängeDalarna, Sweden · Pop. 42k96%matchSimilar rainfallSame sunshineSundsvall vs Borlänge →
- 🇸🇪UmeåVästerbotten, Sweden · Pop. 130k96%matchSame summer highsSame winter lowsSundsvall vs Umeå →
- 🇫🇮VaasaOstrobothnia, Finland · Pop. 70k95%matchSame summer highsSame humiditySundsvall vs Vaasa →