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Boulogne-sur-Mer Climate by Month

The graphs below provide an overview of the climate in Boulogne-sur-Mer (Nord-Pas-de-Calais), France. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Forecast for Boulogne-sur-Mer

Mon   Nov 18
11°C | 7°C
NW 11 km/h
11 mm
overcast and rain

overcast and rain

Tue   Nov 19
12°C | 3°C
W 40 km/h
17 mm
overcast and heavy rain

overcast and heavy rain

Wed   Nov 20
5°C | 3°C
NW 25 km/h
clear and no rain

clear and no rain

The best time of year to visit Boulogne-sur-Mer in France

During the months of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Which is the warmest month in Boulogne-sur-Mer?
    August has an average maximum temperature of 22°C and is the warmest month of the year.
  • Which is the coldest month in Boulogne-sur-Mer?
    The coldest month is February with an average maximum temperature of 9°C.
  • Which is the wettest month in Boulogne-sur-Mer?
    December tops the wettest month list with 105 mm of rainfall.
  • Which is the driest month in Boulogne-sur-Mer?
    April is the driest month with 56 mm of precipitation.
  • Which is the sunniest month in Boulogne-sur-Mer?
    July is the sunniest month with an average of 218 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.