Best year time to visit Sundby

General weather information about Sundby

Average annual temperature is 4.5 °C

Absolute maximum temperature: 29.4 °C

Absolute minimum temperature: -21.1 °C

Number of sunny days: 139 days

Number of rainy days: 159 days

Number of snow days: 67 days

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* Weather data for Sundby Finland is based on climate observations for 2026 year

Sundby air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)5.05.34.616.922.528.925.729.423.012.55.04.5
Average daytime temperature (°C)-0.9-0.5-1.47.214.420.119.520.416.94.6-1.3-4.3
Average temperature (°C)-2.6-2.8-4.81.49.515.616.016.513.61.7-3.4-6.5
Average night temperature (°C)-4.9-5.5-8.7-3.84.49.911.912.610.0-0.8-6.3-9.4
Absolute minimum temperature (°C)-15.6-13.8-18.7-14.5-2.32.39.48.72.6-8.7-21.1-16.3

Sundby monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.020.020.017.014.011.08.05.0
Daylight mean duration (h)5.88.611.815.018.220.419.316.213.09.86.74.7
Daylight minimum duration (h)4.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)1.33.15.89.513.014.711.810.16.44.90.70.4
Precipitation (mm)58244543392916814697906535
Sunny days9141220161746714911
Rainy days11459121327252315114
Snow days11101413000021016

Sundby - weather forecast by months

Sundby weather in januarySundby weather in februarySundby weather in marchSundby weather in aprilSundby weather in maySundby weather in juneSundby weather in julySundby weather in augustSundby weather in septemberSundby weather in octoberSundby weather in novemberSundby weather in december

Best time to visit Sundby:

The best time to visit Sundby during the most sunny months:

  • April — 9.5(h)
  • May — 13.0(h)
  • June — 14.7(h)
  • July — 11.8(h)
  • August — 10.1(h)

Months with the longest average daylight duration in Sundby:

  • May — 18.2(h)
  • June — 20.4(h)
  • July — 19.3(h)
  • August — 16.2(h)

The largest precipitation sum in Sundby is at

  • July — 168(mm)
  • August — 146(mm)
  • September — 97(mm)
  • October — 90(mm)

    • Weather forecast in the closest to Sundby admin centers

    Weather forecast in the closest towns to Sundby

    Explore Sundby

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

    When is the best time to visit Sundby?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Sundby.
    What is the weather like in Sundby?
    See average temperature, rainfall and daylight hours for Sundby by month in the table above.
    How many sunny days does Sundby have?
    The monthly weather statistics above show sunshine and rainfall patterns for Sundby throughout the year.