Saint-Léger-en-Yvelines Weather & Climate: Best Time to Visit

The climate in Saint-Léger-en-Yvelines is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in August, the warmest time of the year, to a chilly 8°C (46°F) during cooler months like February.

At night, you can expect temperatures ranging from 14°C (57°F) in August to around 2°C (36°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Saint-Léger-en-Yvelines receives mid-range precipitation levels, with 736 mm (29 in) annually. Year-round, Saint-Léger-en-Yvelines has a balanced climate with minimal variation in precipitation. The difference between the wettest month, May, with 72 mm (2.8 in), and the driest month, September, with 53 mm (2.1 in), is minimal. For more details, please visit our Saint-Léger-en-Yvelines Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Saint-Léger-en-Yvelines. While July receives considerable daily sunshine with up to 7.5 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Saint-Léger-en-Yvelines.

The city experiences its highest humidity in November, reaching 84%. In April, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year