Frankfurt
September
Weather in Frankfurt for September 2025
Your guide to Frankfurt weather in September - trends and predictions
In general, the average temperature in Frankfurt at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.1 °C by the end of September.
Frankfurt sees moderate rainfall in September, averaging 9 rainy days.
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21
Dry days
9
Rainy days
0
Snow days
24°/12°
Temperatures
11 km/h
Avg max wind
67 %
Avg humidity
Frankfurt in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2  27° | 3 26° | 4  24° | 5 28° | 6 24° | 7 28° |
| 8 27° | 9 22° | 10 23° | 11 22° | 12 21° | 13  18° | 14  19° |
| 15 20° | 16 19° | 17 24° | 18 24° | 19  21° | 20 23° | 21 24° |
| 22  21° | 23 20° | 24 19° | 25 20° | 26 20° | 27 20° | 28 19° |
| 29 19° | 30 17° |
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Temperatures trend during September in Frankfurt
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. | Light rain shower | 25° /14° | 2.3 mm | 6 | |
| 2 Sept. | Partly cloudy | 27° /14° | 3.1 mm | 7 | |
| 3 Sept. | Patchy rain possible | 26° /15° | 1.8 mm | 6 | |
| 4 Sept. | Sunny | 24° /14° | 2.3 mm | 6 | |
| 5 Sept. | Sunny | 28° /15° | 0 mm | 7 | |
| 6 Sept. | Sunny | 24° /13° | 0.5 mm | 6 | |
| 7 Sept. | Sunny | 28° /13° | 0 mm | 7 | |
| 8 Sept. | Sunny | 27° /13° | 3.5 mm | 7 | |
| 9 Sept. | Sunny | 22° /13° | 6.2 mm | 6 | |
| 10 Sept. | Sunny | 23° /14° | 0.5 mm | 6 | |
| 11 Sept. | Partly cloudy | 22° /12° | 1.4 mm | 5 | |
| 12 Sept. | Sunny | 21° /10° | 0.7 mm | 5 | |
| 13 Sept. | Overcast | 18° /9° | 0.4 mm | 5 | |
| 14 Sept. | Mist | 19° /8° | 3.8 mm | 5 | |
| 15 Sept. | Partly cloudy | 20° /7° | 0 mm | 5 | |
| 16 Sept. | Sunny | 19° /10° | 2.4 mm | 5 | |
| 17 Sept. | Partly cloudy | 24° /12° | 0.1 mm | 6 | |
| 18 Sept. | Light rain shower | 24° /12° | 4.4 mm | 6 | |
| 19 Sept. | Cloudy | 21° /13° | 0.3 mm | 5 | |
| 20 Sept. | Partly cloudy | 23° /11° | 0 mm | 6 | |
| 21 Sept. | Partly cloudy | 24° /11° | 0.2 mm | 7 | |
| 22 Sept. | Patchy light drizzle | 21° /11° | 1.4 mm | 5 | |
| 23 Sept. | Patchy rain possible | 20° /11° | 7 mm | 5 | |
| 24 Sept. | Sunny | 19° /10° | 6.2 mm | 5 | |
| 25 Sept. | Sunny | 20° /8° | 1.1 mm | 5 | |
| 26 Sept. | Sunny | 20° /11° | 8.9 mm | 5 | |
| 27 Sept. | Sunny | 20° /11° | 1.2 mm | 5 | |
| 28 Sept. | Overcast | 19° /9° | 0.6 mm | 4 | |
| 29 Sept. | Partly cloudy | 19° /8° | 0.3 mm | 5 | |
| 30 Sept. | Light drizzle | 17° /8° | 0.6 mm | 4 | |
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Important Notice
Our weather forecast for Frankfurt 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 Frankfurt forecast closer to your planned date for the most up-to-date weather information.
Frankfurt in September - FAQ
What are the expected maximum and minimum temperatures in Frankfurt during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Frankfurt during September?
In September, Frankfurt can expect light to moderate rainfall, totaling 22.1 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Frankfurt during September?
The average wind speed in Frankfurt during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Frankfurt in September?
As you prepare for your trip to Frankfurt 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 Frankfurt, 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 Frankfurt
Explore the daily rainfall trends and prepare for Frankfurts September weather 💧
UV exposure in Frankfurt during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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