Best year time to visit Sianvaara

General weather information about Sianvaara

Average annual temperature is 3.8 °C

Absolute maximum temperature: 28.2 °C

Absolute minimum temperature: -19.2 °C

Number of sunny days: 114 days

Number of rainy days: 163 days

Number of snow days: 88 days

Look at detailed online map of Sianvaara

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

Sianvaara air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)1.92.23.716.921.424.624.028.220.711.22.01.3
Average daytime temperature (°C)-3.1-3.8-1.97.514.118.618.220.216.13.3-2.9-6.5
Average temperature (°C)-4.9-5.9-4.71.69.914.515.216.813.21.3-4.4-8.0
Average night temperature (°C)-6.9-7.9-7.6-3.35.29.611.713.310.3-0.5-6.0-9.7
Absolute minimum temperature (°C)-19.2-16.2-15.2-12.7-3.01.68.47.66.4-7.7-16.1-16.2

Sianvaara monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.020.019.017.014.011.08.05.0
Daylight mean duration (h)6.18.811.814.917.919.918.916.013.09.97.05.1
Daylight minimum duration (h)5.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)0.51.64.510.711.914.38.910.16.13.40.10.2
Precipitation (mm)67298428367817697128916445
Sunny days13692212116851345
Rainy days6076171925232516145
Snow days12221522000021221

Sianvaara - weather forecast by months

Sianvaara weather in januarySianvaara weather in februarySianvaara weather in marchSianvaara weather in aprilSianvaara weather in maySianvaara weather in juneSianvaara weather in julySianvaara weather in augustSianvaara weather in septemberSianvaara weather in octoberSianvaara weather in novemberSianvaara weather in december

Best time to visit Sianvaara:

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

  • April — 10.7(h)
  • May — 11.9(h)
  • June — 14.3(h)
  • July — 8.9(h)
  • August — 10.1(h)

Months with the longest average daylight duration in Sianvaara:

  • May — 17.9(h)
  • June — 19.9(h)
  • July — 18.9(h)
  • August — 16.0(h)

The largest precipitation sum in Sianvaara is at

  • July — 176(mm)
  • August — 97(mm)
  • September — 128(mm)

    • Weather forecast in the closest to Sianvaara admin centers

    Weather forecast in the closest towns to Sianvaara

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    Frequently asked questions

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