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Germany weather

Weather in Konstanz for September 2025

Your guide to Konstanz weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Konstanz at the beginning of September is 24.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.1 °C by the end of September.

    • Rain 🌧️

  • Konstanz in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 172.9 mm.

    • More

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

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

Average dry days
12
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/10°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Konstanz Weather September

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

Temperatures trend during September in Konstanz

See the weather trend as well as the moving average line

September weather in Konstanz day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Cloudy
Cloudy
 27° /16° 0 mm 6
2 Sept. Cloudy
Cloudy
 26° /16° 0 mm 6
3 Sept. Overcast
Overcast
 25° /15° 0 mm 6
4 Sept. Overcast
Overcast
 23° /16° 0 mm 5
5 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 25° /15° 9.6 mm 6
6 Sept. Cloudy
Cloudy
 22° /13° 2.9 mm 5
7 Sept. Sunny
Sunny
 26° /14° 0 mm 7
8 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 23° /15° 12.8 mm 5
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /13° 20.7 mm 4
10 Sept. Moderate rain at times
Moderate rain at times
 19° /12° 3.2 mm 4
11 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /8° 13.2 mm 4
12 Sept. Heavy rain at times
Heavy rain at times
 12° /6° 10.2 mm 3
13 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /5° 9.1 mm 3
14 Sept. Patchy rain possible
Patchy rain possible
 9° /7° 3.5 mm 2
15 Sept. Partly cloudy
Partly cloudy
 15° /4° 0 mm 5
16 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /4° 11 mm 3
17 Sept. Heavy rain at times
Heavy rain at times
 16° /8° 8.9 mm 4
18 Sept. Partly cloudy
Partly cloudy
 18° /7° 0 mm 5
19 Sept. Cloudy
Cloudy
 19° /10° 0 mm 4
20 Sept. Overcast
Overcast
 20° /8° 0 mm 5
21 Sept. Cloudy
Cloudy
 20° /9° 0 mm 5
22 Sept. Sunny
Sunny
 20° /10° 0 mm 6
23 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /12° 11.9 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 17° /10° 0.5 mm 4
25 Sept. Partly cloudy
Partly cloudy
 18° /10° 0.1 mm 5
26 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /12° 23.2 mm 3
27 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 15° /10° 7.9 mm 4
28 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /7° 22 mm 3
29 Sept. Overcast
Overcast
 15° /5° 1.5 mm 3
30 Sept. Patchy rain possible
Patchy rain possible
 17° /7° 0.6 mm 4
Next
Important Notice
Our weather forecast for Konstanz 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 Konstanz forecast closer to your planned date for the most up-to-date weather information.
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Konstanz in September - FAQ

What are the expected maximum and minimum temperatures in Konstanz during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Konstanz during September?
Significant rainfall exceeding 172.9 mm is expected in Konstanz during September, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Konstanz during September?
The average wind speed in Konstanz during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Konstanz in September?

As you prepare for your trip to Konstanz 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 Konstanz, 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
    • 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 Konstanz

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

UV exposure in Konstanz 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 Konstanz?

Get accurate weather forecasts for Konstanz, located at latitude 47.66 and longitude 9.176. Stay updated with localized weather information tailored for Konstanz.

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