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Average Monthly Sunshine in Grande-Synthe

The graphs on this page shows the average number of hours per month and per day that Grande-Synthe receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine


Sunshine in Grande-Synthe varies greatly throughout the year. The sunniest month, July, reaches an impressive 232 hours, while December, the darkest month, offers only 48 hours. The total annual amount of sun is 1730 hours.

Daily hours of sunshine


This means the city can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.7 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.6 hours of sunlight per day.

Grande-Synthe’s total hours of sunshine compared to other major cities

Grande-Synthe enjoys an average of 1730 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, ReykjavĂ­k, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast, dark winter and rainy skies.

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

Other climate information

December, Grande-Synthe’s wettest month, receives 70 mm of rainfall and has a maximum daytime temperature of 9°C. During the driest month April you can expect a temperature of 15°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Precipitation page.


Forecast: is it sunny in Grande-Synthe?

Sun   Dec 22
10°C | 5°C
W 11 m/s
2.7 mm
partly cloudy and  chance of slight rain

partly cloudy and chance of slight rain

Mon   Dec 23
8°C | 6°C
NW 9 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
10°C | 4°C
SW 3 m/s
overcast and no rain

overcast and no rain

Interested in more climate information?

This site provides you with all the information you need about the climate in Grande-Synthe.

Our site offers climate and forecast data for every country in the world. Are you going to France? On this website you can find historical weather averages for many cities in France. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.