Chartres Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Chartres.
Climate overview of Chartres
Chartres, Centre, France, sees big temperature differences between seasons, with August peaking at 26°C (79°F) and January dropping to 8°C (46°F).
Chartres sees a moderate amount of rain/snowfall, totalling around 702 mm (28 in) per year. It experiences warm summers and cold winters, creating some seasonal variation. The most sunshine falls in July, with an average of 8.0 hours of daily sunshine.
Chartres Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chartres - and find the best time to visit.
Monthly Temperature in Chartres
Visitors to Chartres can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in August, the warmest time of the year, to a chilly 8°C (46°F) during cooler months like January.
At night, you can expect temperatures ranging from 14°C (57°F) in August to around 2°C (36°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Chartres
Generally, Chartres experiences moderate precipitation patterns, averaging 702 mm (28 in) yearly. Year-round, Chartres has a balanced climate with minimal variation in precipitation. The difference between the wettest month, May, with 68 mm (2.7 in), and the driest month, September, with 52 mm (2 in), is minimal. For more details, please visit our Chartres 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 Chartres
Seasonal changes in sunshine hours are quite dramatic in Chartres. While July receives considerable daily sunshine with up to 8.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.7 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
Humidity in Chartres by Month
The relative humidity is high throughout the year in Chartres.
The city experiences its highest humidity in December, reaching 89%. In April, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Chartres
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewer rainy days: June, July, August, September and October
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Chartres
What is the best time to visit Chartres?
June, July, August and September typically offer the most optimal weather in Chartres. In contrast, January, February and December tend to have less optimal conditions. Chartres has warm summers and cold winters.
What temperatures can I expect in Chartres?
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 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Chartres get?
Annual rainfall is around 702 mm (28 in). May is the wettest month with 68 mm (2.7 in), while September is the driest with 52 mm (2 in).
How sunny is Chartres?
Chartres receives around 1,794 hours of sunshine per year. July is the sunniest month with 240 hours, while December is the cloudiest with just 50 hours.
Chartres 3-Day Forecast
Chartres on the map
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