Boissy-Saint-Léger Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Boissy-Saint-Léger.
Climate overview of Boissy-Saint-Léger
The climate in Boissy-Saint-Léger, Ile de France, France, is marked by large temperature swings across the seasons, ranging from 26°C (79°F) in August to 8°C (46°F) in January.
The city receives around 752 mm (30 in) of rain/snowfall per year. It experiences warm summers and cold winters. December is the wettest month and September the driest. The sunniest month is July, with 7.5 hours of sunshine per day on average.
Boissy-Saint-Léger Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Boissy-Saint-Léger - and find the best time to visit.
Monthly Temperature in Boissy-Saint-Léger
In Boissy-Saint-Léger, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 26°C (79°F) in August to a chilly 8°C (46°F) in January.
Nighttime temperatures range from 15°C (59°F) in August to 2°C (36°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Boissy-Saint-Léger
On average, Boissy-Saint-Léger receives a reasonable amount of rain/snowfall, with an annual precipitation of 752 mm (30 in). The wettest period in Boissy-Saint-Léger occurs in December, which receives around 77 mm (3 in) of precipitation. During the driest month, September, Boissy-Saint-Léger experiences moderate rainfall, totaling 55 mm (2.2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Boissy-Saint-Léger 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 Boissy-Saint-Léger
In Boissy-Saint-Léger, summer days are longer and more sunny, with daily sunshine hours peaking at 7.5 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.9 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Boissy-Saint-Léger by Month
The relative humidity is high throughout the year in Boissy-Saint-Léger.
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
Wind Speed in Boissy-Saint-Léger
The mean wind speed over the year ranges from 3 m/s (6 knots) in May, June, July, August, September, October and November to 4 m/s (8 knots) in January, February, March, April and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Boissy-Saint-Léger
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 and September
- Warmest weather: July and August
- Most sunshine: July and August
- Fewer rainy days: June, July, August, September and October
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Boissy-Saint-Léger
What is the best time to visit Boissy-Saint-Léger?
May, June, July, August and September typically offer the most optimal weather in Boissy-Saint-Léger. In contrast, January, February and December tend to have less optimal conditions. Boissy-Saint-Léger has warm summers and cold winters.
What temperatures can I expect in Boissy-Saint-Léger?
Daytime highs range from 8°C (46°F) in January to 26°C (79°F) in August. Nighttime lows range from 2°C (36°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Boissy-Saint-Léger get?
Annual rainfall is around 752 mm (30 in). December is the wettest month with 77 mm (3 in), while September is the driest with 55 mm (2.2 in).
How sunny is Boissy-Saint-Léger?
Boissy-Saint-Léger receives around 1,725 hours of sunshine per year. July is the sunniest month with 224 hours, while December is the cloudiest with just 58 hours.
Boissy-Saint-Léger 3-Day Forecast
Boissy-Saint-Léger on the map
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