Dieppe
September
Weather in Dieppe for September 2025
Your guide to Dieppe weather in September - trends and predictions
In general, the average temperature in Dieppe at the beginning of September is 22.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °C by the end of September.
The climate of Dieppe in September is notably wet, with an average of 11 rainy days.
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19
Dry days
11
Rainy days
0
Snow days
21°/11°
Temperatures
15 km/h
Avg max wind
82 %
Avg humidity
Dieppe in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2  23° | 3 21° | 4  25° | 5 24° | 6  22° | 7 20° |
| 8 24° | 9  21° | 10 20° | 11 19° | 12 21° | 13 23° | 14 20° |
| 15 21° | 16 24° | 17 25° | 18 24° | 19  19° | 20 18° | 21 15° |
| 22 17° | 23 16° | 24  18° | 25 15° | 26 18° | 27 17° | 28 18° |
| 29 20° | 30 19° |
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Temperatures trend during September in Dieppe
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 20° /11° | 4.5 mm | 5 | |
| 2 Sept. | Partly cloudy | 23° /11° | 0.4 mm | 6 | |
| 3 Sept. | Partly cloudy | 21° /10° | 0 mm | 6 | |
| 4 Sept. | Fog | 25° /11° | 0 mm | 6 | |
| 5 Sept. | Mist | 24° /13° | 0 mm | 6 | |
| 6 Sept. | Overcast | 22° /13° | 0.5 mm | 5 | |
| 7 Sept. | Fog | 20° /14° | 6.7 mm | 5 | |
| 8 Sept. | Mist | 24° /13° | 1.1 mm | 6 | |
| 9 Sept. | Light rain shower | 21° /13° | 1.8 mm | 5 | |
| 10 Sept. | Light rain shower | 20° /10° | 2.3 mm | 5 | |
| 11 Sept. | Light rain shower | 19° /10° | 16.4 mm | 5 | |
| 12 Sept. | Fog | 21° /11° | 0 mm | 5 | |
| 13 Sept. | Fog | 23° /14° | 1.1 mm | 5 | |
| 14 Sept. | Fog | 20° /13° | 1.5 mm | 5 | |
| 15 Sept. | Mist | 21° /8° | 0 mm | 5 | |
| 16 Sept. | Light rain shower | 24° /13° | 26.1 mm | 6 | |
| 17 Sept. | Light rain shower | 25° /14° | 3.3 mm | 6 | |
| 18 Sept. | Patchy rain possible | 24° /14° | 0.6 mm | 6 | |
| 19 Sept. | Light rain | 19° /14° | 0.9 mm | 4 | |
| 20 Sept. | Patchy rain possible | 18° /12° | 0.4 mm | 4 | |
| 21 Sept. | Patchy rain possible | 15° /9° | 0.1 mm | 4 | |
| 22 Sept. | Partly cloudy | 17° /7° | 0 mm | 5 | |
| 23 Sept. | Overcast | 16° /9° | 0 mm | 4 | |
| 24 Sept. | Cloudy | 18° /9° | 0 mm | 5 | |
| 25 Sept. | Light rain shower | 15° /9° | 0.3 mm | 4 | |
| 26 Sept. | Sunny | 18° /7° | 2.2 mm | 5 | |
| 27 Sept. | Mist | 17° /9° | 37.6 mm | 4 | |
| 28 Sept. | Mist | 18° /11° | 2.7 mm | 4 | |
| 29 Sept. | Mist | 20° /7° | 0 mm | 5 | |
| 30 Sept. | Mist | 19° /10° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Dieppe 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 Dieppe forecast closer to your planned date for the most up-to-date weather information.
Dieppe in September - FAQ
What are the expected maximum and minimum temperatures in Dieppe during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Dieppe during September?
Significant rainfall exceeding 108.5 mm is expected in Dieppe during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Dieppe during September?
The average wind speed in Dieppe during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Dieppe
Explore the daily rainfall trends and prepare for Dieppes September weather 💧
UV exposure in Dieppe during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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