Weather in By in May

General weather information about By

Average annual temperature is 6.4 °C

Absolute maximum temperature: 28.8 °C

Absolute minimum temperature: -17.7 °C

Number of sunny days: 153 days

Number of rainy days: 172 days

Number of snow days: 40 days

Look at detailed online map of By

* Weather data for By Sweden is based on climate observations for 2026 year

By air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.08.49.218.421.928.826.021.524.016.55.85.7
Average daytime temperature (°C)1.02.92.910.016.723.319.618.917.98.01.1-3.1
Average temperature (°C)-0.8-0.3-1.44.911.318.215.915.614.45.5-0.8-5.5
Average night temperature (°C)-3.2-3.6-6.1-0.25.112.512.112.210.83.1-2.8-9.1
Absolute minimum temperature (°C)-12.7-9.1-15.3-8.9-1.55.79.69.35.6-1.2-10.1-17.7

By monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.015.018.018.018.016.014.011.08.06.0
Daylight mean duration (h)6.99.211.814.617.118.717.915.612.910.27.66.1
Daylight minimum duration (h)6.08.010.013.015.018.016.014.011.08.06.05.0
Sunshine mean duration (h)1.54.76.18.413.914.712.07.96.94.81.91.1
Precipitation (mm)88476597255014417654636454
Sunny days818131621222312141212
Rainy days154111410829281814129
Snow days8670000003610

By - weather forecast by months

By weather in januaryBy weather in februaryBy weather in marchBy weather in aprilBy weather in mayBy weather in juneBy weather in julyBy weather in augustBy weather in septemberBy weather in octoberBy weather in novemberBy weather in december

Best time to visit By:

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

  • May — 13.9(h)
  • June — 14.7(h)
  • July — 12.0(h)

Months with the longest average daylight duration in By:

  • May — 17.1(h)
  • June — 18.7(h)
  • July — 17.9(h)
  • August — 15.6(h)

The largest precipitation sum in By is at

  • July — 144(mm)
  • August — 176(mm)

    • Weather forecast in the closest to By admin centers

    Weather forecast in the closest towns to By

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    Frequently asked questions

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