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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.

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

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/12°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Frankfurt in September average weather

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Temperatures trend during September in Frankfurt

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
25° /14° 2.3 mm 6
2 Sept. Partly cloudy
Partly cloudy
27° /14° 3.1 mm 7
3 Sept. Patchy rain possible
Patchy rain possible
26° /15° 1.8 mm 6
4 Sept. Sunny
Sunny
24° /14° 2.3 mm 6
5 Sept. Sunny
Sunny
28° /15° 0 mm 7
6 Sept. Sunny
Sunny
24° /13° 0.5 mm 6
7 Sept. Sunny
Sunny
28° /13° 0 mm 7
8 Sept. Sunny
Sunny
27° /13° 3.5 mm 7
9 Sept. Sunny
Sunny
22° /13° 6.2 mm 6
10 Sept. Sunny
Sunny
23° /14° 0.5 mm 6
11 Sept. Partly cloudy
Partly cloudy
22° /12° 1.4 mm 5
12 Sept. Sunny
Sunny
21° /10° 0.7 mm 5
13 Sept. Overcast
Overcast
18° /9° 0.4 mm 5
14 Sept. Mist
Mist
19° /8° 3.8 mm 5
15 Sept. Partly cloudy
Partly cloudy
20° /7° 0 mm 5
16 Sept. Sunny
Sunny
19° /10° 2.4 mm 5
17 Sept. Partly cloudy
Partly cloudy
24° /12° 0.1 mm 6
18 Sept. Light rain shower
Light rain shower
24° /12° 4.4 mm 6
19 Sept. Cloudy
Cloudy
21° /13° 0.3 mm 5
20 Sept. Partly cloudy
Partly cloudy
23° /11° 0 mm 6
21 Sept. Partly cloudy
Partly cloudy
24° /11° 0.2 mm 7
22 Sept. Patchy light drizzle
Patchy light drizzle
21° /11° 1.4 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
20° /11° 7 mm 5
24 Sept. Sunny
Sunny
19° /10° 6.2 mm 5
25 Sept. Sunny
Sunny
20° /8° 1.1 mm 5
26 Sept. Sunny
Sunny
20° /11° 8.9 mm 5
27 Sept. Sunny
Sunny
20° /11° 1.2 mm 5
28 Sept. Overcast
Overcast
19° /9° 0.6 mm 4
29 Sept. Partly cloudy
Partly cloudy
19° /8° 0.3 mm 5
30 Sept. Light drizzle
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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Location coordinates Where is Frankfurt?

Get accurate weather forecasts for Frankfurt, located at latitude 49.683 and longitude 10.533. Stay updated with localized weather information tailored for Frankfurt.

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