Cergy Weather in September

September in Cergy brings pleasant temperatures, with highs of 22°C (72°F) and nights dropping to 11°C (52°F). It's also the driest month of the year, ideal for those who want to avoid rain.

Rainfall in Cergy in September

Expect fewer clouds and less rain as the month goes on. This makes it an ideal time for outdoor activities. This month experiences about 12 days of rain according to historical data, averaging 50 mm (2 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Cergy in September

September is a perfect month in Cergy, with 22°C (72°F) during the day and 11°C (52°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Cergy in September

The area experiences a moderate amount of sunshine, with approximately 172 hours of sunlight expected. This means a decent mix of sun and overcast.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Cergy.

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

Cergy Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 41%  

Precipitation 50 mm (2 in)  

Rainy days 12 days  

Humidity 77% *  

Sunshine 172 hours *  

Percentage Sunshine 44% *  

* Data from: Paris, France (31 KM, 19 Miles).

What to Wear in Cergy in September

For Cergy in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Cergy in September

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

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 Cergy's climate page.

More climate data for Cergy

Temperature Rainfall Sunshine Humidity

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