Istres Weather in September

September in Istres brings high temperatures, with highs of 27°C (81°F) and nights dropping to 16°C (61°F). Rainfall is on the higher side this month, averaging around 79 mm (3.1 in), so keep a rain jacket handy.

Rainfall in Istres in September

You can typically expect 7 days of rain this month, averaging around 79 mm (3.1 in). Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in Istres in September

The perfect temperature in Istres in September makes it a solid month to visit, with 27°C (81°F) during the day and 16°C (61°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 16°C (61°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Istres in September

There are approximately 260 hours of sunshine this month, resulting in mostly clear days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, June, September and October typically offer the best weather for Istres.

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For a detailed overview over the year and the best time to visit France, check out our Istres's climate page.

Istres Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 22%  

Precipitation 79 mm (3.1 in)  

Rainy days 7 days  

Humidity 70% *  

Sunshine 260 hours *  

Percentage Sunshine 68% *  

* Data from: Marseille, France (10 KM, 6 Miles).

What to Wear in Istres in September

Warm but pleasant conditions in Istres in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Istres in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Istres's climate page.

More climate data for Istres

Temperature Rainfall Sunshine Humidity

See the full Istres climate overview or explore weather in France.