Challans Weather in September

September in Challans sees daytime temperatures around 22°C (72°F) and lows of 13°C (55°F) at night. The perfect weather makes it a good time to visit.

Rainfall in Challans in September

Historically, September sees about 13 days of rain, with a monthly average of 59 mm (2.3 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Challans in September

September in Challans is generally perfect, with days reaching 22°C (72°F) and nights settling around 13°C (55°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Challans in September

The month enjoys around 195 hours of sunshine, creating mostly sunny days with good weather conditions.

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 Challans's climate page.

Challans Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 42%  

Precipitation 59 mm (2.3 in)  

Rainy days 13 days  

Humidity 80% *  

Sunshine 195 hours *  

Percentage Sunshine 51% *  

* Data from: Nantes, France (47 KM, 29 Miles).

What to Wear in Challans in September

For Challans 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Challans 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 Challans's climate page.

More climate data for Challans

Temperature Rainfall Sunshine Humidity

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