Grande-Synthe Weather in December

With daytime temperatures of 9°C (48°F) and nighttime lows of 4°C (39°F), December in Grande-Synthe brings low temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Grande-Synthe in December

Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. Looking at the last 30 years, the data shows about 18 days with rain, averaging 75 mm (3 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Grande-Synthe in December

In December, Grande-Synthe gets low temperatures, with highs of 9°C (48°F). Nights cool to around 4°C (39°F). The winter season is characteristic of December. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Grande-Synthe in December

This month is characterized by fewer sunny days, with about 48 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

December in Grande-Synthe can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Grande-Synthe's climate page.

Grande-Synthe Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 59%  

Precipitation 75 mm (3 in)  

Rainy days 18 days  

Humidity 93% *  

Sunshine 48 hours *  

Percentage Sunshine *  

* Data from: Ostend, Belgium (44 KM, 27 Miles).

What to Wear in Grande-Synthe in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Grande-Synthe in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

4/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Grande-Synthe's climate page.

More climate data for Grande-Synthe

Temperature Rainfall Sunshine Humidity

See the full Grande-Synthe climate overview or explore weather in France.