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Weather in Seine-et-Marne for September 2025

Your guide to Seine-et-Marne weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Seine-et-Marne is slightly cooler than the historical average by -1.4 °C.

  • The forecast for the next days in Seine-et-Marne predicts temperatures to be around 20 °C, close to the historical average.

  • In general, the average temperature in Seine-et-Marne at the beginning of September is 25.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.6 °C by the end of September.

    • Rain 🌧️

  • The climate of Seine-et-Marne in September is notably wet, with an average of 13 rainy days, and a total of 63.3 mm of precipitation.

    • More

  • Is September a good time to visit Seine-et-Marne? check out the best time to travel to Seine-et-Marne page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/13°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Seine-et-Marne Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
27°
2
Patchy rain possible
23°
3
Patchy rain possible
23°
4
Sunny
24°
5
Sunny
25°
6
Sunny
27°
7
Sunny
30°
8
Sunny
27°
9
Sunny
25°
10
Sunny
25°
11
Light rain shower
21°
12
Mist
19°
13
Fog
20°
14
Overcast
21°
15
Partly cloudy
24°
16
Partly cloudy
22°
17
Mist
25°
18
Sunny
27°
19
Sunny
32°
20
Patchy rain possible
25°
21
Heavy rain
22°
22
Patchy rain possible
20°
23
Patchy rain possible
17°
24
Patchy rain possible
17°
25
Partly cloudy
20°
26
Partly cloudy
17°
27
Partly cloudy
18°
28
Sunny
17°
29
Sunny
17°
30
Partly cloudy
17°

Temperatures trend during September in Seine-et-Marne

See the weather trend as well as the moving average line

September weather in Seine-et-Marne day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 27° /16° 1.8 mm 7
2 Sept. Patchy rain possible
Patchy rain possible
 23° /15° 0.5 mm 5
3 Sept. Patchy rain possible
Patchy rain possible
 23° /16° 0.8 mm 5
4 Sept. Sunny
Sunny
 24° /14° 1.1 mm 6
5 Sept. Sunny
Sunny
 25° /14° 3.2 mm 6
6 Sept. Sunny
Sunny
 27° /15° 0.3 mm 7
7 Sept. Sunny
Sunny
 30° /16° 2.5 mm 7
8 Sept. Sunny
Sunny
 27° /16° 5.1 mm 6
9 Sept. Sunny
Sunny
 25° /16° 1.9 mm 6
10 Sept. Sunny
Sunny
 25° /15° 0.2 mm 6
11 Sept. Light rain shower
Light rain shower
 21° /13° 2.1 mm 5
12 Sept. Mist
Mist
 19° /11° 0.1 mm 5
13 Sept. Fog
Fog
 20° /11° 1.9 mm 5
14 Sept. Overcast
Overcast
 21° /12° 0.5 mm 5
15 Sept. Partly cloudy
Partly cloudy
 24° /12° 0.2 mm 6
16 Sept. Partly cloudy
Partly cloudy
 22° /12° 0.3 mm 5
17 Sept. Mist
Mist
 25° /13° 0.3 mm 6
18 Sept. Sunny
Sunny
 27° /15° 0 mm 1.2
19 Sept. Sunny
Sunny
 32° /17° 0 mm 1.1
20 Sept. Patchy rain possible
Patchy rain possible
 25° /20° 2.4 mm 1
21 Sept. Heavy rain
Heavy rain
 22° /15° 21.4 mm 0.8
22 Sept. Patchy rain possible
Patchy rain possible
 20° /13° 1.3 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 17° /12° 1.2 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 17° /11° 1.4 mm 3
25 Sept. Partly cloudy
Partly cloudy
 20° /12° 0.1 mm 5
26 Sept. Partly cloudy
Partly cloudy
 17° /12° 0 mm 4
27 Sept. Partly cloudy
Partly cloudy
 18° /13° 0.1 mm 4
28 Sept. Sunny
Sunny
 17° /9° 0 mm 4
29 Sept. Sunny
Sunny
 17° /8° 0 mm 4
30 Sept. Partly cloudy
Partly cloudy
 17° /8° 0 mm 4
Next
Important Notice
Our weather forecast for Seine-et-Marne in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Seine-et-Marne forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Seine-et-Marne weather in September vs August vs October

Compare September weather in Seine-et-Marne with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures26°/15°23°/13°18°/10°
Rainfall36 mm63 mm97 mm
Wind15.9 km/h19.5 km/h19.3 km/h
Humidity67%68%73%
Rainy days10 days13 days19 days
Dry days21 days17 days12 days

Planning a trip to Seine-et-Marne? Discover the best time to visit

Seine-et-Marne in September - FAQ

What are the expected maximum and minimum temperatures in Seine-et-Marne during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Seine-et-Marne during September?
Moderate rainfall is anticipated in Seine-et-Marne during September, with a total of 63.3 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Seine-et-Marne during September?
The average wind speed in Seine-et-Marne during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Seine-et-Marne in September?

As you prepare for your trip to Seine-et-Marne in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Seine-et-Marne, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

September rainfall patterns in Seine-et-Marne

Explore the daily rainfall trends and prepare for Seine-et-Marnes September weather 💧

UV exposure in Seine-et-Marne during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Seine-et-Marne?

Get accurate weather forecasts for Seine-et-Marne, located at latitude 48.883 and longitude 2.767. Stay updated with localized weather information tailored for Seine-et-Marne.

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