Weather in Wallonia in May

General weather information about Wallonia

Average annual temperature is 11.2 °C

Absolute maximum temperature: 29.7 °C

Absolute minimum temperature: -5.2 °C

Number of sunny days: 109 days

Number of rainy days: 253 days

Number of snow days: 3 days

Look at detailed online map of Wallonia

* Weather data for Wallonia Belgium is based on climate observations for 2026 year

Wallonia air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.812.515.517.122.728.729.727.729.324.414.711.1
Average daytime temperature (°C)6.27.89.811.717.224.121.721.322.516.39.27.6
Average temperature (°C)4.24.66.57.812.719.317.817.417.813.07.05.9
Average night temperature (°C)2.11.73.13.77.713.613.713.113.39.84.93.9
Absolute minimum temperature (°C)-4.2-4.6-4.4-2.62.69.010.59.77.51.3-2.9-5.2

Wallonia monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.016.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.610.111.913.815.516.415.914.512.610.79.08.1
Daylight minimum duration (h)8.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)2.64.95.37.010.713.111.09.99.66.33.12.1
Precipitation (mm)8313137845645111807410711988
Sunny days81437122146161026
Rainy days22142723199272514212824
Snow days101000000001

Wallonia - weather forecast by months

Wallonia weather in januaryWallonia weather in februaryWallonia weather in marchWallonia weather in aprilWallonia weather in mayWallonia weather in juneWallonia weather in julyWallonia weather in augustWallonia weather in septemberWallonia weather in octoberWallonia weather in novemberWallonia weather in december

Best time to visit Wallonia:

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

  • May — 10.7(h)
  • June — 13.1(h)
  • July — 11.0(h)
  • August — 9.9(h)
  • September — 9.6(h)

Months with the longest average daylight duration in Wallonia:

  • May — 15.5(h)
  • June — 16.4(h)
  • July — 15.9(h)

The largest precipitation sum in Wallonia is at

  • March — 137(mm)
  • July — 111(mm)
  • October — 107(mm)
  • November — 119(mm)

    • Weather forecast in the closest to Wallonia admin centers

    Weather forecast in the closest towns to Wallonia

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    Frequently asked questions

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