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Olonne-sur-Mer Weather and Climate: A Comprehensive Guide

The temperature in Olonne-sur-Mer can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and cold during the cooler months. It receives a moderate amount of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

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

Nighttime temperatures can drop, with average lows reaching 6°C in February. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Olonne-sur-Mer experiences moderate precipitation patterns, averaging 858 mm 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 of precipitation. This rainfall is distributed across 16 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 40 mm 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 over the year

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).

Forecast for Olonne-sur-Mer

Tue   Dec 24
13°C | 9°C
NW 5 m/s
overcast and no rain

overcast and no rain

Wed   Dec 25
14°C | 9°C
NE 4 m/s
overcast and no rain

overcast and no rain

Thu   Dec 26
12°C | 4°C
NE 4 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Olonne-sur-Mer in France

During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Olonne-sur-Mer?
    August has an average maximum temperature of 23°C and is the warmest month of the year.
  • Which is the coldest month in Olonne-sur-Mer?
    The coldest month is February with an average maximum temperature of 11°C.
  • Which is the wettest month in Olonne-sur-Mer?
    November tops the wettest month list with 110 mm of rainfall.
  • Which is the driest month in Olonne-sur-Mer?
    July is the driest month with 40 mm of precipitation.
  • Which is the sunniest month in Olonne-sur-Mer?
    July is the sunniest month with an average of 273 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.