Olonne-sur-Mer Weather in September

Olonne-sur-Mer in September sees pleasant temperatures, with highs around 21°C (70°F) and overnight lows of 15°C (59°F). Rainfall is fairly high at around 62 mm (2.4 in) on average, so pack waterproofs just in case.

Rainfall in Olonne-sur-Mer in September

Typically, about 13 days will experience rainfall, with an average of 62 mm (2.4 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Olonne-sur-Mer in September

Olonne-sur-Mer in September is worth a visit. The temperature is perfect, with 21°C (70°F) during the day and 15°C (59°F) at night. Experience the summer season in September. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Olonne-sur-Mer in September

The days are predominantly sunny, with an estimated total of around 212 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Olonne-sur-Mer.

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

Olonne-sur-Mer Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 42%  

Precipitation 62 mm (2.4 in)  

Rainy days 13 days  

Humidity 79% *  

Sunshine 212 hours *  

Percentage Sunshine *  

* Data from: La Rochelle, France (63 KM, 39 Miles).

What to Wear in Olonne-sur-Mer in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Olonne-sur-Mer in September

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

Cycling

10/10

Walking

10/10

Barbeque

8/10

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 Olonne-sur-Mer's climate page.

More climate data for Olonne-sur-Mer

Temperature Rainfall Sunshine Humidity

See the full Olonne-sur-Mer climate overview or explore weather in France.