Istres Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Istres.
Climate overview of Istres
Temperatures in Istres, Provence-Alpes-Côte d'Azur, France, vary greatly throughout the year. July is the hottest month at 32°C (90°F), while January is the coldest at 13°C (55°F).
Istres sees a moderate amount of rainfall, totalling around 633 mm (25 in) per year. It experiences a distinct dry season from June to August, creating some seasonal variation. The sunniest month is July, with 12.3 hours of sunshine per day on average.
Istres Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Istres — and find the best time to visit.
Monthly Temperature in Istres
The climate in Istres is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 32°C (90°F) in July, the warmest time of the year, to a moderate 13°C (55°F) during cooler months like January.
At night, you can expect temperatures ranging from 20°C (68°F) in July to around 4°C (39°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Istres
Generally, Istres receives mid-range precipitation levels, with 633 mm (25 in) annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives moderate rainfall, averaging 88 mm (3.5 in) of precipitation, recorded across 9 rainy days. In contrast, the driest month July brings less rainfall, with 16 mm (0.6 in) over 4 rainy days. For more details, please visit our Istres 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 Istres
Seasonal changes in sunshine hours are quite dramatic in Istres. While July receives considerable daily sunshine with up to 12.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.5 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 Istres by Month
The relative humidity is high throughout the year in Istres.
The city experiences its highest humidity in December, reaching 77%. In July, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Istres
Frequently asked questions about the climate in Istres
What is the best time to visit Istres?
April, May, June, September and October typically offer the most optimal weather in Istres. In contrast, January and December tend to have less optimal conditions. Istres has a distinct dry season from June to August.
What temperatures can I expect in Istres?
Daytime highs range from 13°C (55°F) in January to 32°C (90°F) in July. Nighttime lows range from 4°C (39°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Istres get?
Annual rainfall is around 633 mm (25 in). November is the wettest month with 88 mm (3.5 in), while July is the driest with 16 mm (0.6 in).
How sunny is Istres?
Istres receives around 2,872 hours of sunshine per year. July is the sunniest month with 370 hours, while December is the cloudiest with just 136 hours. Overall, Istres enjoys abundant sunshine.
Istres 3-Day Forecast
Istres 3-Day Forecast
Istres on the map
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