Mantes-la-Jolie Weather in September

In Mantes-la-Jolie, September brings pleasant daytime temperatures around 22°C (72°F), with nights cooling to 11°C (52°F). It is the driest month of the year, with minimal rainfall.

Rainfall in Mantes-la-Jolie in September

This is the driest month, making it a great choice for planning outdoor excursions. Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 51 mm (2 in) on average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Mantes-la-Jolie in September

September is a excellent month in Mantes-la-Jolie, with 22°C (72°F) during the day and 11°C (52°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Mantes-la-Jolie in September

With about 172 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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

Mantes-la-Jolie Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 40%  

Precipitation 51 mm (2 in)  

Rainy days 12 days  

Humidity 77% *  

Sunshine 172 hours *  

Percentage Sunshine 44% *  

* Data from: Paris, France (53 KM, 33 Miles).

What to Wear in Mantes-la-Jolie in September

For Mantes-la-Jolie in September, 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Mantes-la-Jolie in September

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

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 Mantes-la-Jolie's climate page.

More climate data for Mantes-la-Jolie

Temperature Rainfall Sunshine Humidity

See the full Mantes-la-Jolie climate overview or explore weather in France.