Olonne-sur-Mer Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Olonne-sur-Mer.

Climate overview of Olonne-sur-Mer

Olonne-sur-Mer, Pays de la Loire, France, sees big temperature differences between seasons, with August peaking at 23°C (73°F) and February dropping to 11°C (52°F).

The city receives around 858 mm (34 in) of rainfall per year. 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.

Olonne-sur-Mer Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Olonne-sur-Mer — and find the best time to visit.

Monthly Temperature in Olonne-sur-Mer

Visitors to Olonne-sur-Mer can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 23°C (73°F) in August to a chilly 11°C (52°F) in February.

Nighttime temperatures range from 17°C (63°F) in August to 6°C (43°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Olonne-sur-Mer

Generally, Olonne-sur-Mer experiences moderate precipitation patterns, averaging 858 mm (34 in) yearly. The seasons in Olonne-sur-Mer bring significant changes in precipitation. The wettest month, November, receives high rainfall, with an average of 110 mm (4.3 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 Olonne-sur-Mer Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Olonne-sur-Mer

In Olonne-sur-Mer, 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

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

Daily hours of sunshine

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

Humidity in Olonne-sur-Mer by Month

Best Time to Visit Olonne-sur-Mer

During May, June, July, August, September and October, Olonne-sur-Mer experiences its most favorable weather, with temperatures between 18°C (64°F) and 23°C (74°F). These mild conditions make it an excellent time for a visit.

The weather does bring rainfall during this period, between 40 mm (1.6 in) and 97 mm (3.8 in).

Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

Frequently asked questions about the climate in Olonne-sur-Mer

What is the best time to visit Olonne-sur-Mer?

June, July, August and September typically offer the most optimal weather in Olonne-sur-Mer. In contrast, December tends to have less optimal conditions.

What temperatures can I expect in Olonne-sur-Mer?

Daytime highs range from 11°C (52°F) in February 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 Olonne-sur-Mer get?

Annual rainfall is around 858 mm (34 in). November is the wettest month with 110 mm (4.3 in), while July is the driest with 40 mm (1.6 in).

How sunny is Olonne-sur-Mer?

Olonne-sur-Mer 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, Olonne-sur-Mer enjoys abundant sunshine.

Olonne-sur-Mer 3-Day Forecast

Olonne-sur-Mer 3-Day Forecast

Olonne-sur-Mer on the map

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