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Passau
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Weather in Passau for September 2025

Your guide to Passau weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Passau is slightly cooler than the historical average by -0.8 °C.

  • The forecast for the next days in Passau predicts temperatures to be around 20 °C, close to the historical average.

  • In general, the average temperature in Passau at the beginning of September is 24.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.1 °C by the end of September.

    • Rain 🌧️

  • The climate of Passau in September is notably wet, with an average of 11 rainy days, and a total of 175 mm of precipitation.

    • More

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

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

Average dry days
19
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/9°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Passau Weather September

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

Temperatures trend during September in Passau

See the weather trend as well as the moving average line

September weather in Passau day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 26° /12° 0 mm 7
2 Sept. Light rain shower
Light rain shower
 22° /13° 3.1 mm 5
3 Sept. Patchy rain possible
Patchy rain possible
 25° /12° 0.6 mm 6
4 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 27° /12° 1.7 mm 7
5 Sept. Sunny
Sunny
 23° /12° 5.3 mm 6
6 Sept. Light rain shower
Light rain shower
 21° /10° 0.6 mm 5
7 Sept. Sunny
Sunny
 25° /10° 0 mm 6
8 Sept. Patchy rain possible
Patchy rain possible
 23° /10° 0.7 mm 6
9 Sept. Light rain shower
Light rain shower
 20° /10° 11.9 mm 5
10 Sept. Light rain shower
Light rain shower
 19° /10° 6.6 mm 5
11 Sept. Patchy rain possible
Patchy rain possible
 20° /10° 2.9 mm 5
12 Sept. Light rain shower
Light rain shower
 13° /7° 5.9 mm 4
13 Sept. Light rain shower
Light rain shower
 16° /7° 4.3 mm 5
14 Sept. Moderate rain
Moderate rain
 14° /7° 20.2 mm 3
15 Sept. Patchy rain possible
Patchy rain possible
 23° /10° 3.2 mm 1.1
16 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 0.6 mm 0.9
17 Sept. Patchy rain possible
Patchy rain possible
 17° /8° 2 mm 0.9
18 Sept. Sunny
Sunny
 22° /7° 0 mm 1.2
19 Sept. Sunny
Sunny
 25° /10° 0 mm 1.5
20 Sept. Sunny
Sunny
 26° /12° 0 mm 5
21 Sept. Sunny
Sunny
 25° /13° 0 mm 5
22 Sept. Patchy rain possible
Patchy rain possible
 24° /15° 0.1 mm 4
23 Sept. Partly cloudy
Partly cloudy
 25° /15° 0 mm 5
24 Sept. Sunny
Sunny
 24° /14° 0 mm 5
25 Sept. Patchy rain possible
Patchy rain possible
 17° /8° 0.4 mm 3
26 Sept. Patchy rain possible
Patchy rain possible
 18° /7° 1.1 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
 15° /9° 1.2 mm 3
28 Sept. Moderate rain
Moderate rain
 5° /4° 6.6 mm 2
29 Sept. Partly cloudy
Partly cloudy
 17° /5° 0 mm 5
30 Sept. Fog
Fog
 17° /6° 0.1 mm 4
Next
Important Notice
Our weather forecast for Passau 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 Passau forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Passau weather in September vs August vs October

Compare September weather in Passau with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherSunny
Sunny
Light rain shower
Light rain shower
Partly cloudy
Partly cloudy
Temperatures26°/12°22°/9°18°/5°
Rainfall125 mm175 mm92 mm
Wind10.1 km/h13.3 km/h11.1 km/h
Humidity77%81%82%
Rainy days12 days11 days2 days
Dry days19 days19 days29 days

Planning a trip to Passau? Discover the best time to visit

Passau in September - FAQ

What are the expected maximum and minimum temperatures in Passau during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Passau during September?
Significant rainfall exceeding 175 mm is expected in Passau during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Passau during September?
The average wind speed in Passau during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Passau in September?

As you prepare for your trip to Passau 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 Passau, 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 Passau

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

UV exposure in Passau 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 Passau?

Get accurate weather forecasts for Passau, located at latitude 48.567 and longitude 13.431. Stay updated with localized weather information tailored for Passau.

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