Guyancourt Weather in December

December in Guyancourt brings low temperatures, with daytime highs of 9°C (48°F) and nights around 2°C (36°F). It's also the wettest month of the year, so an umbrella is a must.

Rainfall in Guyancourt in December

Given that this is the rainiest month, it's wise to carry an umbrella to stay dry during unexpected showers. Historically, the month has about 16 days of rain, averaging 74 mm (2.9 in) in total. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Guyancourt in December

Daytime highs in Guyancourt in December reach 9°C (48°F), with nights around 2°C (36°F). Winter occurs in December. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Guyancourt in December

With limited sunshine this month, there are about 58 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

December in Guyancourt has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
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• July
• August

• September
• October
• November
• December

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

Guyancourt Temperature in December

Min Temperature 2°C (36°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 54%  

Precipitation 74 mm (2.9 in)  

Rainy days 16 days  

Humidity 84% *  

Sunshine 58 hours *  

Percentage Sunshine 22% *  

* Data from: Paris, France (34 KM, 21 Miles).

What to Wear in Guyancourt 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. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Guyancourt 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 Guyancourt's climate page.

More climate data for Guyancourt

Temperature Rainfall Sunshine Humidity

See the full Guyancourt climate overview or explore weather in France.