Illiers Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Illiers.
Climate overview of Illiers
Illiers, Centre, France, sees big temperature differences between seasons, with August peaking at 26°C (79°F) and January dropping to 8°C (46°F).
The city receives around 725 mm (29 in) of rain/snowfall per year. It experiences warm summers and cold winters. May is the wettest month and September the driest. The sunniest month is July, with 8.0 hours of sunshine per day on average.
Illiers Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Illiers - and find the best time to visit.
Monthly Temperature in Illiers
Visitors to Illiers can expect significant temperature changes throughout the year. 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 14°C (57°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 Illiers
Generally, Illiers experiences moderate precipitation patterns, averaging 725 mm (29 in) yearly. The wettest period in Illiers occurs in May, which receives around 70 mm (2.8 in) of precipitation. During the driest month, September, Illiers experiences moderate rainfall, totaling 54 mm (2.1 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Illiers 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 Illiers
In Illiers, summer days are longer and more sunny, with daily sunshine hours peaking at 8.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.7 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 Illiers by Month
The relative humidity is high throughout the year in Illiers.
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 Illiers
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
- Fewest rainy days: June, July, August and September
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Illiers
What is the best time to visit Illiers?
June, July, August and September typically offer the most optimal weather in Illiers. In contrast, January, February and December tend to have less optimal conditions. Illiers has warm summers and cold winters.
What temperatures can I expect in Illiers?
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 Illiers get?
Annual rainfall is around 725 mm (29 in). May is the wettest month with 70 mm (2.8 in), while September is the driest with 54 mm (2.1 in).
How sunny is Illiers?
Illiers 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.
Illiers 3-Day Forecast
Illiers 3-Day Forecast
Illiers on the map
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