Weather in Byn in May

General weather information about Byn

Average annual temperature is 4.7 °C

Absolute maximum temperature: 30.5 °C

Absolute minimum temperature: -21.6 °C

Number of sunny days: 142 days

Number of rainy days: 163 days

Number of snow days: 60 days

Look at detailed online map of Byn

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

Byn air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.46.26.213.621.430.025.330.522.913.14.75.0
Average daytime temperature (°C)-0.6-0.2-0.67.614.420.420.320.417.35.2-1.0-3.7
Average temperature (°C)-2.6-2.6-4.41.79.515.616.216.513.82.0-3.1-6.3
Average night temperature (°C)-5.1-5.7-8.5-3.44.09.811.812.410.2-0.9-6.4-9.7
Absolute minimum temperature (°C)-19.7-12.1-16.3-13.3-2.62.09.89.01.5-7.9-21.6-16.6

Byn 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)5.98.711.815.018.120.119.116.113.09.96.84.9
Daylight minimum duration (h)4.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)1.23.15.69.713.014.911.99.06.35.10.70.6
Precipitation (mm)5828584340319613990718136
Sunny days11141022191754712912
Rainy days12498121326272317102
Snow days8101200000021117

Byn - weather forecast by months

Byn weather in januaryByn weather in februaryByn weather in marchByn weather in aprilByn weather in mayByn weather in juneByn weather in julyByn weather in augustByn weather in septemberByn weather in octoberByn weather in novemberByn weather in december

Best time to visit Byn:

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

  • April — 9.7(h)
  • May — 13.0(h)
  • June — 14.9(h)
  • July — 11.9(h)
  • August — 9.0(h)

Months with the longest average daylight duration in Byn:

  • May — 18.1(h)
  • June — 20.1(h)
  • July — 19.1(h)
  • August — 16.1(h)

The largest precipitation sum in Byn is at

  • July — 96(mm)
  • August — 139(mm)
  • September — 90(mm)
  • November — 81(mm)

    • Weather forecast in the closest to Byn admin centers

    Weather forecast in the closest towns to Byn

    Explore Byn

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    Frequently asked questions

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