Best year time to visit Niilessaari

General weather information about Niilessaari

Average annual temperature is 3.8 °C

Absolute maximum temperature: 27.8 °C

Absolute minimum temperature: -20.8 °C

Number of sunny days: 139 days

Number of rainy days: 157 days

Number of snow days: 69 days

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

Niilessaari air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.44.52.213.722.626.524.227.822.010.73.52.7
Average daytime temperature (°C)-2.0-2.3-2.36.314.319.418.820.415.73.0-2.6-5.3
Average temperature (°C)-3.9-4.9-6.10.69.715.115.616.612.80.5-4.4-7.0
Average night temperature (°C)-6.2-8.0-10.4-4.84.19.812.012.39.6-1.8-6.6-8.9
Absolute minimum temperature (°C)-20.2-18.6-20.8-14.7-4.21.09.07.02.2-9.1-16.9-16.3

Niilessaari monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)6.010.013.016.020.021.020.018.014.011.08.04.0
Daylight mean duration (h)5.58.511.815.118.521.019.716.413.09.76.54.3
Daylight minimum duration (h)4.07.010.013.016.020.018.014.011.08.05.04.0
Sunshine mean duration (h)1.22.16.110.412.114.49.910.65.53.20.30.1
Precipitation (mm)48254739437014896113875540
Sunny days121114231412310712138
Rainy days10326151828212314107
Snow days914151200005716

Niilessaari - weather forecast by months

Niilessaari weather in januaryNiilessaari weather in februaryNiilessaari weather in marchNiilessaari weather in aprilNiilessaari weather in mayNiilessaari weather in juneNiilessaari weather in julyNiilessaari weather in augustNiilessaari weather in septemberNiilessaari weather in octoberNiilessaari weather in novemberNiilessaari weather in december

Best time to visit Niilessaari:

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

  • April — 10.4(h)
  • May — 12.1(h)
  • June — 14.4(h)
  • July — 9.9(h)
  • August — 10.6(h)

Months with the longest average daylight duration in Niilessaari:

  • May — 18.5(h)
  • June — 21.0(h)
  • July — 19.7(h)
  • August — 16.4(h)

The largest precipitation sum in Niilessaari is at

  • July — 148(mm)
  • August — 96(mm)
  • September — 113(mm)
  • October — 87(mm)

    • Weather forecast in the closest to Niilessaari admin centers

    Weather forecast in the closest towns to Niilessaari

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    Frequently asked questions

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