Marennes Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Marennes.
Climate overview of Marennes
The climate in Marennes, Poitou-Charentes, France, is marked by large temperature swings across the seasons, ranging from 26°C (79°F) in August to 11°C (52°F) in January.
Marennes sees a moderate amount of rainfall, totalling around 801 mm (32 in) per year. It experiences warm summers and cold winters, creating some seasonal variation. July is the sunniest month, averaging 9.1 hours of sunshine per day.
Marennes Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Marennes - and find the best time to visit.
Monthly Temperature in Marennes
In Marennes, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in August, the warmest time of the year, to a chilly 11°C (52°F) during cooler months like January.
At night, you can expect temperatures ranging from 17°C (63°F) in August to around 5°C (41°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Marennes
On average, Marennes receives a reasonable amount of rainfall, with an annual precipitation of 801 mm (32 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives moderate rainfall, averaging 92 mm (3.6 in) of precipitation, recorded across 16 rainy days. In contrast, the driest month July brings less rainfall, with 42 mm (1.7 in) over 10 rainy days. For more details, please visit our Marennes 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 Marennes
Seasonal changes in sunshine hours are quite dramatic in Marennes. While July receives considerable daily sunshine with up to 9.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Marennes 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 Marennes
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September and October
- 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 Marennes
What is the best time to visit Marennes?
May, June, July, August, September and October typically offer the most optimal weather in Marennes. In contrast, January, February and December tend to have less optimal conditions. Marennes has warm summers and cold winters.
What temperatures can I expect in Marennes?
Daytime highs range from 11°C (52°F) in January to 26°C (79°F) in August. Nighttime lows range from 5°C (41°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Marennes get?
Annual rainfall is around 801 mm (32 in). November is the wettest month with 92 mm (3.6 in), while July is the driest with 42 mm (1.7 in).
How sunny is Marennes?
Marennes 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, Marennes enjoys abundant sunshine.
Marennes 3-Day Forecast
Marennes on the map
Marennes is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Marseille
32°C (90°F) Toulouse
29°C (84°F) Bordeaux29°C (84°F) Lyon28°C (82°F) Cannes27°C (81°F) Nice27°C (81°F) Paris26°C (79°F) Chamonix-Mont-Blanc
18°C (64°F) 
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