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20°
Overcast
Feels Like: 19°
Min: 13°
Max: 23°
The next few hours will be clear, with today reaching 23°C and dropping to 16°C. The coming days will be mostly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:58
Sunrise
20:00
Sunset
Moon
Waxing Gibbous
17:29
Moonrise
01:42
Moonset
Daily Forecast
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View stargazing scoreWeather in Olonne-sur-Mer tomorrow, September 21, 2026
Olonne-sur-Mer starts September 21, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. The first half of the day looks overcast, as cloud amounts reach about 100% around 01:00. Brighter weather, if it comes, waits until later.
The day peaks near 26°C and cools toward 15°C. Expect humidity between 41% and 95%, most humid near 06:00. Winds stay light, near 4.2 km/h by 18:00, so the day feels still more than breezy.
Later hours favour clearer intervals, as cloud stays near 22% around 14:00. The afternoon is the better half for outdoor time. Visibility stays generally good near 25.7 km on average, though it can drop toward 5.6 km in thicker cloud or showers. Daylight runs from 08:00 to 19:58, lasting 11 hours 58 minutes of sunlight today.
Overall, Olonne-sur-Mer on September 21, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 26°C.
Frequently asked questions about weather in Olonne-sur-Mer
How warm does it get in Olonne-sur-Mer?
The warmest month in Olonne-sur-Mer is August, with average high temperatures of 22°C. The average temperature during this period is around 20°C.
How cold does it get in Olonne-sur-Mer?
The coldest month in Olonne-sur-Mer is January, with average low temperatures of 6°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Olonne-sur-Mer?
The wettest month in Olonne-sur-Mer is November, with an average of 115mm of precipitation.
What is the driest time of year in Olonne-sur-Mer?
The driest month in Olonne-sur-Mer is July, with an average of 27mm of precipitation.
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