Guyancourt Weather in May

In Guyancourt, May brings pleasant daytime temperatures around 20°C (68°F), with nights cooling to 9°C (48°F). Expect quite a bit of rainfall this month.

Rainfall in Guyancourt in May

Typically, about 16 days will experience rainfall, with an average of 71 mm (2.8 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Guyancourt in May

May tends to be one of the perfect months in Guyancourt, with 20°C (68°F) in the afternoon and 9°C (48°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Guyancourt in May

With approximately 200 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Guyancourt.

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

Guyancourt Temperature in May

Min Temperature 9°C (48°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 53%  

Precipitation 71 mm (2.8 in)  

Rainy days 16 days  

Humidity 69% *  

Sunshine 200 hours *  

Percentage Sunshine 42% *  

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

What to Wear in Guyancourt in May

For Guyancourt in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Guyancourt in May

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

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.