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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 excellent 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 excellent, 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.
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).
Challans Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Challans - and find the best time to visit.
Best Places in France in September
Find out more about the weather in France and which places have the best travel conditions in this month. See all of France in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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.
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Swimming6/10 -
Cycling10/10 -
Walking10/10 -
Camping8/10 -
Outdoor sports10/10
Challans 3-Day Forecast
More climate data for Challans
Temperature Rainfall Sunshine Humidity
See the full Challans climate overview or explore weather in France.
Popular in September
Where to go in September - average daytime high across popular destinations.
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The 10 most charming villages in France
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