Regierungsbezirk Arnsberg (Dortmund)
September
Weather in Regierungsbezirk Arnsberg for September 2025
Your guide to Regierungsbezirk Arnsberg weather in September - trends and predictions
In general, the average temperature in Regierungsbezirk Arnsberg at the beginning of September is 27 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.6 °C by the end of September.
Regierungsbezirk Arnsberg experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 98.3 mm.
Is September a good time to visit Regierungsbezirk Arnsberg? check out the best time to travel to Regierungsbezirk Arnsberg page.
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Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
22°/14°
Temperatures
14 km/h
Avg max wind
65 %
Avg humidity
Regierungsbezirk Arnsberg in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2  27° | 3  26° | 4  23° | 5  30° | 6 29° | 7 30° |
| 8 27° | 9 26° | 10 24° | 11 24° | 12  20° | 13 17° | 14 18° |
| 15  22° | 16 22° | 17 23° | 18 24° | 19 22° | 20 24° | 21  24° |
| 22 22° | 23 18° | 24 18° | 25  18° | 26 20° | 27 20° | 28 18° |
| 29 19° | 30 17° |
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Temperatures trend during September in Regierungsbezirk Arnsberg
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. | Heavy rain | 24° /14° | 33 mm | 6 | |
| 2 Sept. | Light rain shower | 27° /17° | 3.8 mm | 6 | |
| 3 Sept. | Mist | 26° /16° | 1.4 mm | 6 | |
| 4 Sept. | Overcast | 23° /15° | 13 mm | 6 | |
| 5 Sept. | Sunny | 30° /16° | 1.2 mm | 7 | |
| 6 Sept. | Sunny | 29° /17° | 0.1 mm | 7 | |
| 7 Sept. | Sunny | 30° /17° | 0 mm | 8 | |
| 8 Sept. | Sunny | 27° /17° | 0.4 mm | 7 | |
| 9 Sept. | Sunny | 26° /17° | 1.9 mm | 7 | |
| 10 Sept. | Sunny | 24° /16° | 1.3 mm | 6 | |
| 11 Sept. | Sunny | 24° /15° | 4.6 mm | 6 | |
| 12 Sept. | Thundery outbreaks possible | 20° /13° | 0.4 mm | 5 | |
| 13 Sept. | Overcast | 17° /10° | 1.3 mm | 4 | |
| 14 Sept. | Overcast | 18° /10° | 0.1 mm | 5 | |
| 15 Sept. | Partly cloudy | 22° /11° | 0 mm | 5 | |
| 16 Sept. | Partly cloudy | 22° /15° | 1.1 mm | 6 | |
| 17 Sept. | Light rain shower | 23° /14° | 1.8 mm | 6 | |
| 18 Sept. | Overcast | 24° /15° | 0.6 mm | 6 | |
| 19 Sept. | Patchy rain possible | 22° /14° | 0 mm | 5 | |
| 20 Sept. | Partly cloudy | 24° /14° | 0 mm | 6 | |
| 21 Sept. | Moderate rain | 24° /14° | 5.6 mm | 6 | |
| 22 Sept. | Moderate rain | 22° /13° | 1.9 mm | 6 | |
| 23 Sept. | Patchy rain possible | 18° /12° | 1 mm | 4 | |
| 24 Sept. | Partly cloudy | 18° /11° | 1.7 mm | 5 | |
| 25 Sept. | Cloudy | 18° /12° | 9.2 mm | 5 | |
| 26 Sept. | Sunny | 20° /12° | 4.5 mm | 5 | |
| 27 Sept. | Overcast | 20° /12° | 2.7 mm | 5 | |
| 28 Sept. | Partly cloudy | 18° /12° | 1 mm | 5 | |
| 29 Sept. | Light rain shower | 19° /11° | 1.6 mm | 5 | |
| 30 Sept. | Partly cloudy | 17° /9° | 3.1 mm | 5 | |
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Important Notice
Our weather forecast for Regierungsbezirk Arnsberg 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 Regierungsbezirk Arnsberg forecast closer to your planned date for the most up-to-date weather information.
Regierungsbezirk Arnsberg in September - FAQ
What are the expected maximum and minimum temperatures in Regierungsbezirk Arnsberg during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Regierungsbezirk Arnsberg during September?
Moderate rainfall is anticipated in Regierungsbezirk Arnsberg during September, with a total of 98.3 mm spread over approximately 21 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Regierungsbezirk Arnsberg during September?
The average wind speed in Regierungsbezirk Arnsberg during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Regierungsbezirk Arnsberg in September?
As you prepare for your trip to Regierungsbezirk Arnsberg 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 Regierungsbezirk Arnsberg, 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 Regierungsbezirk Arnsberg
Explore the daily rainfall trends and prepare for Regierungsbezirk Arnsbergs September weather 💧
UV exposure in Regierungsbezirk Arnsberg during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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