Weather in Calais in May

General weather information about Calais

Average annual temperature is 7.2 °C

Absolute maximum temperature: 37.8 °C

Absolute minimum temperature: -32.4 °C

Number of sunny days: 227 days

Number of rainy days: 92 days

Number of snow days: 46 days

Look at detailed online map of Calais

* Weather data for Calais United States is based on climate observations for 2026 year

Calais air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.68.33.827.530.231.637.835.534.221.812.19.9
Average daytime temperature (°C)-3.0-0.6-2.511.223.226.729.029.324.712.15.33.8
Average temperature (°C)-7.6-6.8-8.03.715.820.422.121.917.96.70.2-1.3
Average night temperature (°C)-10.9-11.6-12.7-1.78.914.515.615.812.12.6-3.6-4.8
Absolute minimum temperature (°C)-25.6-32.4-22.9-12.70.59.88.512.46.0-16.7-13.2-10.5

Calais monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.015.015.013.011.09.08.0
Daylight mean duration (h)8.910.211.913.715.216.015.614.312.610.89.38.4
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.010.08.08.0
Sunshine mean duration (h)4.37.66.79.311.312.713.411.310.37.17.06.0
Precipitation (mm)8113138477915312654712
Sunny days201517171517232120181925
Rainy days7218161381010962
Snow days41113500000454

Calais - weather forecast by months

Calais weather in januaryCalais weather in februaryCalais weather in marchCalais weather in aprilCalais weather in mayCalais weather in juneCalais weather in julyCalais weather in augustCalais weather in septemberCalais weather in octoberCalais weather in novemberCalais weather in december

Best time to visit Calais:

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

  • May — 11.3(h)
  • June — 12.7(h)
  • July — 13.4(h)
  • August — 11.3(h)

Months with the longest average daylight duration in Calais:

  • June — 16.0(h)
  • July — 15.6(h)

The largest precipitation sum in Calais is at

  • May — 47(mm)
  • June — 79(mm)
  • October — 54(mm)

    • Weather forecast in the closest to Calais admin centers

    Weather forecast in the closest towns to Calais

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    Frequently asked questions

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