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Weather in Rouen for September 2025

Your guide to Rouen weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Rouen is cooler than usual, with temperatures averaging 21 °C, this is -2.4 °C below the typical seasonal average.

  • Expect cooler weather in the next days in Rouen with the forecast suggesting a temperature of 20.1 °C, lower than the historical average.

  • In general, the average temperature in Rouen at the beginning of September is 25 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.

    • Rain 🌧️

  • Rouen experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 78.8 mm.

    • More

  • Is September a good time to visit Rouen? check out the best time to travel to Rouen page.

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

Average dry days
5
Dry days
Average rainy days
25
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/12°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Rouen Weather September

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

Temperatures trend during September in Rouen

See the weather trend as well as the moving average line

September weather in Rouen day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 25° /14° 6.9 mm 6
2 Sept. Light rain shower
Light rain shower
 23° /13° 4 mm 5
3 Sept. Patchy rain possible
Patchy rain possible
 25° /13° 0.6 mm 6
4 Sept. Moderate rain at times
Moderate rain at times
 24° /12° 1.2 mm 6
5 Sept. Patchy rain possible
Patchy rain possible
 24° /14° 3 mm 5
6 Sept. Partly cloudy
Partly cloudy
 27° /14° 0.9 mm 6
7 Sept. Sunny
Sunny
 27° /14° 3.4 mm 6
8 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /14° 6.1 mm 6
9 Sept. Partly cloudy
Partly cloudy
 23° /13° 1.4 mm 5
10 Sept. Patchy rain possible
Patchy rain possible
 22° /13° 1.9 mm 5
11 Sept. Light rain shower
Light rain shower
 20° /11° 1.5 mm 5
12 Sept. Sunny
Sunny
 21° /10° 1.1 mm 5
13 Sept. Light rain shower
Light rain shower
 21° /12° 4.2 mm 5
14 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /12° 4.1 mm 5
15 Sept. Patchy rain possible
Patchy rain possible
 22° /11° 0.5 mm 6
16 Sept. Patchy rain possible
Patchy rain possible
 20° /10° 0.7 mm 0.9
17 Sept. Partly cloudy
Partly cloudy
 25° /12° 0 mm 1.1
18 Sept. Sunny
Sunny
 29° /11° 0 mm 1.2
19 Sept. Sunny
Sunny
 32° /14° 0 mm 1
20 Sept. Patchy rain possible
Patchy rain possible
 21° /10° 2.3 mm 0.3
21 Sept. Patchy rain possible
Patchy rain possible
 18° /8° 0.6 mm 3
22 Sept. Patchy rain possible
Patchy rain possible
 17° /7° 0.1 mm 3
23 Sept. Patchy rain possible
Patchy rain possible
 17° /7° 0.3 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 15° /6° 0.4 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 17° /7° 0.1 mm 3
26 Sept. Partly cloudy
Partly cloudy
 17° /7° 0 mm 4
27 Sept. Partly cloudy
Partly cloudy
 18° /8° 0 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 18° /8° 0.3 mm 3
29 Sept. Patchy rain possible
Patchy rain possible
 18° /10° 1.6 mm 3
30 Sept. Overcast
Overcast
 18° /8° 1.3 mm 5
Next
Important Notice
Our weather forecast for Rouen 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 Rouen forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Rouen weather in September vs August vs October

Compare September weather in Rouen 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
Temperatures24°/13°21°/12°17°/10°
Rainfall61 mm79 mm100 mm
Wind19.1 km/h18.6 km/h20.2 km/h
Humidity70%72%78%
Rainy days20 days25 days23 days
Dry days11 days5 days8 days

Planning a trip to Rouen? Discover the best time to visit

Rouen in September - FAQ

What are the expected maximum and minimum temperatures in Rouen during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Rouen during September?
Moderate rainfall is anticipated in Rouen during September, with a total of 78.8 mm spread over approximately 25 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Rouen during September?
The average wind speed in Rouen during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Rouen in September?

As you prepare for your trip to Rouen 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 Rouen, 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 Rouen

Explore the daily rainfall trends and prepare for Rouens September weather 💧

UV exposure in Rouen during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Rouen?

Get accurate weather forecasts for Rouen, located at latitude 49.443 and longitude 1.099. Stay updated with localized weather information tailored for Rouen.

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