Les Sables-dʼOlonne Weather in September
September in Les Sables-dʼOlonne brings pleasant temperatures, with daytime highs of 21°C (70°F) and nights around 15°C (59°F). Quite a bit of rainfall is expected, around 63 mm (2.5 in), so pack an umbrella.
Rainfall in Les Sables-dʼOlonne in September
Rain is expected on roughly 13 days, totalling around 63 mm (2.5 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Les Sables-dʼOlonne in September
September is a good time to be in Les Sables-dʼOlonne. Days are perfect, reaching 21°C (70°F), with nights around 15°C (59°F). September is typically considered a summer month. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to around 15°C (59°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 Les Sables-dʼOlonne 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.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit France, check out our Les Sables-dʼOlonne's climate page.
Les Sables-dʼOlonne Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
21°C (70°F)
Chance of Rain
42%
Precipitation
63 mm (2.5 in)
Rainy days
13 days
Humidity
79% *
Sunshine
212 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Les Sables-dʼOlonne typically stay consistent throughout September, with daily highs averaging around 21°C (70°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 14°C (57°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Les Sables-dʼOlonne in September
Browse day-by-day weather records for Les Sables-dʼOlonne spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Les Sables-dʼOlonne historical weather extremes in September
Based on weather observations in Les Sables-dʼOlonne between 1976 and 2025, these are the recorded extremes during September.
- The hottest September day on record in Les Sables-dʼOlonne reached 32°C (90°F) (September 4, 2023).
- The coldest September day was on September 17, 1986, with a maximum of 14°C (57°F).
- The lowest overnight temperature recorded in September was 4°C (39°F) (September 20, 1977).
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
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tolerable
unpleasant
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What to Wear in Les Sables-dʼOlonne in September
For Les Sables-dʼOlonne 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 Les Sables-dʼOlonne in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit France, check out our Les Sables-dʼOlonne's climate page.
Temperature Rainfall Sunshine Humidity
See the full Les Sables-dʼOlonne climate overview or explore weather in France.
