LʼÎle-dʼOlonne Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit LʼÎle-dʼOlonne.
Climate overview of LʼÎle-dʼOlonne
The climate in LʼÎle-dʼOlonne, Pays de la Loire, France, is marked by large temperature swings across the seasons, ranging from 23°C (73°F) in August to 11°C (52°F) in January.
The city receives around 849 mm (33 in) of rainfall per year. It experiences warm summers and cold winters. November is the wettest month and July the driest. Sunshine peaks in July, when the city sees around 9.1 hours of sunshine per day.
LʼÎle-dʼOlonne Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in LʼÎle-dʼOlonne - and find the best time to visit.
Monthly Temperature in LʼÎle-dʼOlonne
In LʼÎle-dʼOlonne, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 23°C (73°F) in August to a chilly 11°C (52°F) in January.
Nighttime temperatures range from 17°C (63°F) in August to 6°C (43°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in LʼÎle-dʼOlonne
On average, LʼÎle-dʼOlonne receives a reasonable amount of rainfall, with an annual precipitation of 849 mm (33 in). The seasons in LʼÎle-dʼOlonne bring significant changes in precipitation. The wettest month, November, receives high rainfall, with an average of 107 mm (4.2 in) of precipitation. This rainfall is distributed across 16 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 40 mm (1.6 in) over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our LʼÎle-dʼOlonne Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in LʼÎle-dʼOlonne
In LʼÎle-dʼOlonne, summer days are longer and more sunny, with daily sunshine hours peaking at 9.1 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in LʼÎle-dʼOlonne by Month
The city experiences its highest humidity in December, reaching 88%. In July, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit LʼÎle-dʼOlonne
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: June, July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in LʼÎle-dʼOlonne
What is the best time to visit LʼÎle-dʼOlonne?
June, July, August and September typically offer the most optimal weather in LʼÎle-dʼOlonne. In contrast, December tends to have less optimal conditions. LʼÎle-dʼOlonne has warm summers and cold winters.
What temperatures can I expect in LʼÎle-dʼOlonne?
Daytime highs range from 11°C (52°F) in January to 23°C (73°F) in August. Nighttime lows range from 6°C (43°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does LʼÎle-dʼOlonne get?
Annual rainfall is around 849 mm (33 in). November is the wettest month with 107 mm (4.2 in), while July is the driest with 40 mm (1.6 in).
How sunny is LʼÎle-dʼOlonne?
LʼÎle-dʼOlonne receives around 2,109 hours of sunshine per year. July is the sunniest month with 273 hours, while December is the cloudiest with just 75 hours. Overall, LʼÎle-dʼOlonne enjoys abundant sunshine.
LʼÎle-dʼOlonne 3-Day Forecast
LʼÎle-dʼOlonne on the map
LʼÎle-dʼOlonne is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
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18°C (64°F) 
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