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Sundsvall Climate by Month

The temperature in Sundsvall can vary quite a bit throughout the year. Temperatures can be pleasant during the warmest months, and very cold during the cooler months. It receives a reasonable amount of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

Visitors to Sundsvall can expect significant temperature changes throughout the year. Average daytime temperatures reach a pleasant 22°C in July. In February, the coolest month of the year, temperatures drop to a very cold -1°C. At night, expect cooler temperatures, averaging -8°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Generally, Sundsvall experiences moderate precipitation patterns, averaging 697 mm yearly. Sundsvall experiences moderate seasonal variation in rainfall, with monthly averages ranging from 80 mm in August, the wettest month, and 41 mm in March, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Sundsvall can be enjoyed more throughout the sunniest month of June under a blue sky, with approximately 9.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.1 hours of sunlight per day.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Sundsvall in Sweden

During the months of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in Sundsvall?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Sundsvall?
    July has an average maximum temperature of 22°C and is the warmest month of the year.
  • Which is the coldest month in Sundsvall?
    The coldest month is February with an average maximum temperature of -1°C.
  • Which is the wettest month in Sundsvall?
    August tops the wettest month list with 80 mm of rainfall.
  • Which is the driest month in Sundsvall?
    March is the driest month with 41 mm of precipitation.
  • Which is the sunniest month in Sundsvall?
    June is the sunniest month with an average of 288 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Sundsvall

    Sun   Dec 15
    -2°C | -11°C
    S 14 km/h
    9.1 mm
    broken clouds and snow

    broken clouds and snow

    Mon   Dec 16
    2°C | -2°C
    W 29 km/h
    2 mm
    partly cloudy and snow

    partly cloudy and snow

    Tue   Dec 17
    2°C | -6°C
    NW 22 km/h
    clear and no rain

    clear and no rain