Best year time to visit Boulogne

General weather information about Boulogne

Average annual temperature is 13.5 °C

Absolute maximum temperature: 35.3 °C

Absolute minimum temperature: -3.6 °C

Number of sunny days: 146 days

Number of rainy days: 219 days

Look at detailed online map of Boulogne

* Weather data for Boulogne France is based on climate observations for 2026 year

Boulogne air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.416.619.820.526.329.431.235.334.227.317.215.1
Average daytime temperature (°C)8.810.412.614.820.025.924.024.625.419.912.911.0
Average temperature (°C)6.56.09.010.815.420.919.319.920.115.310.08.2
Average night temperature (°C)4.12.55.66.710.615.814.515.515.511.66.95.3
Absolute minimum temperature (°C)-3.1-3.6-2.8-0.36.413.29.99.48.56.6-1.6-3.6

Boulogne monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.010.311.913.615.015.815.414.212.610.99.48.6
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)3.76.26.98.111.912.311.610.29.46.95.54.0
Precipitation (mm)12018136613731414368135129124
Sunny days823101016179101613311
Rainy days23521201513222114182720
Snow days000000000000

Boulogne - weather forecast by months

Boulogne weather in januaryBoulogne weather in februaryBoulogne weather in marchBoulogne weather in aprilBoulogne weather in mayBoulogne weather in juneBoulogne weather in julyBoulogne weather in augustBoulogne weather in septemberBoulogne weather in octoberBoulogne weather in novemberBoulogne weather in december

Best time to visit Boulogne:

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

  • May — 11.9(h)
  • June — 12.3(h)
  • July — 11.6(h)
  • August — 10.2(h)

Months with the longest average daylight duration in Boulogne:

  • June — 15.8(h)
  • July — 15.4(h)

The largest precipitation sum in Boulogne is at

  • January — 120(mm)
  • March — 136(mm)
  • October — 135(mm)
  • November — 129(mm)
  • December — 124(mm)

    • Weather forecast in the closest to Boulogne admin centers

    Weather forecast in the closest towns to Boulogne

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    Frequently asked questions

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