Grande-Synthe Weather and Climate: A Comprehensive Guide
The temperature in Grande-Synthe can vary quite a bit throughout the year.
Temperatures can be warm during the warmest months,
and cold during the cooler months.
It receives mid-range precipitation levels.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
Visitors to Grande-Synthe can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 23°C in August, the warmest time of the year, to a chilly 8°C during cooler months like January.
At night, temperatures typically drop to an average of around 3°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Generally, Grande-Synthe experiences moderate precipitation patterns, averaging 762 mm yearly. Year-round, Grande-Synthe has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 75 mm, and the driest month, April, with 52 mm, is minimal.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Grande-Synthe. While July receives considerable daily sunshine with up to 7.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.6 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The city experiences its highest humidity in December, reaching 93%. In May, the humidity drops to its lowest level at 84%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
broken clouds and rain broken clouds and chance of rain clear and no rainForecast for Grande-Synthe
10 m/s
11 m/s
10 m/s
The best time of year to visit Grande-Synthe in France
During the months of June, July, August and September 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:
August has an average maximum temperature of 23°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 8°C.
December tops the wettest month list with 75 mm of rainfall.
April is the driest month with 52 mm of precipitation.
July is the sunniest month with an average of 232 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.
