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Weather in Klagenfurt am Wörthersee for September 2025

Your guide to Klagenfurt am Wörthersee weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Moderate Thunderstorm Risk Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Klagenfurt am Wörthersee is slightly cooler than the historical average by -1.1 °C.

  • Expect cooler weather in the next days in Klagenfurt am Wörthersee with the forecast suggesting a temperature of 19.4 °C, lower than the historical average.

  • In general, the average temperature in Klagenfurt am Wörthersee at the beginning of September is 25.3 °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 Klagenfurt am Wörthersee in September is notably wet, with an average of 15 rainy days, and a total of 104.2 mm of precipitation.

    • More

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

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

Average dry days
15
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/8°
Temperatures
Average wind speed
5 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Klagenfurt am Wörthersee Weather September

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

Temperatures trend during September in Klagenfurt am Wörthersee

See the weather trend as well as the moving average line

September weather in Klagenfurt am Wörthersee day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 25° /8° 0 mm 6
2 Sept. Mist
Mist
 26° /10° 2.4 mm 6
3 Sept. Patchy rain possible
Patchy rain possible
 26° /9° 0.1 mm 6
4 Sept. Partly cloudy
Partly cloudy
 26° /10° 0 mm 7
5 Sept. Sunny
Sunny
 25° /9° 4.9 mm 6
6 Sept. Sunny
Sunny
 24° /8° 2.2 mm 5
7 Sept. Mist
Mist
 25° /8° 0 mm 6
8 Sept. Sunny
Sunny
 25° /8° 0.5 mm 6
9 Sept. Sunny
Sunny
 22° /9° 11.9 mm 5
10 Sept. Sunny
Sunny
 21° /9° 11.9 mm 5
11 Sept. Sunny
Sunny
 23° /9° 1.2 mm 5
12 Sept. Light rain shower
Light rain shower
 21° /9° 26 mm 5
13 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 20° /8° 1.8 mm 5
14 Sept. Mist
Mist
 15° /7° 3.5 mm 4
15 Sept. Mist
Mist
 16° /6° 0.1 mm 4
16 Sept. Heavy rain
Heavy rain
 15° /12° 21 mm 0.5
17 Sept. Patchy rain possible
Patchy rain possible
 19° /9° 1.7 mm 1.2
18 Sept. Sunny
Sunny
 23° /7° 0 mm 1.3
19 Sept. Sunny
Sunny
 25° /9° 0 mm 1.5
20 Sept. Sunny
Sunny
 25° /10° 0 mm 4
21 Sept. Sunny
Sunny
 25° /10° 0 mm 5
22 Sept. Sunny
Sunny
 25° /11° 0 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
 21° /13° 0.9 mm 4
24 Sept. Moderate rain
Moderate rain
 15° /11° 16.9 mm 3
25 Sept. Moderate rain
Moderate rain
 11° /5° 12.7 mm 2
26 Sept. Sunny
Sunny
 16° /1° 0 mm 3
27 Sept. Sunny
Sunny
 16° /2° 0 mm 3
28 Sept. Partly cloudy
Partly cloudy
 17° /2° 0 mm 3
29 Sept. Partly cloudy
Partly cloudy
 19° /5° 0 mm 4
30 Sept. Patchy rain possible
Patchy rain possible
 19° /4° 0.2 mm 5
Next
Important Notice
Our weather forecast for Klagenfurt am Wörthersee 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 Klagenfurt am Wörthersee forecast closer to your planned date for the most up-to-date weather information.
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Klagenfurt am Wörthersee weather in September vs August vs October

Compare September weather in Klagenfurt am Wörthersee 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
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures26°/13°21°/8°16°/5°
Rainfall216 mm104 mm131 mm
Wind5 km/h5.1 km/h3.9 km/h
Humidity76%78%86%
Rainy days23 days15 days22 days
Dry days8 days15 days9 days

Planning a trip to Klagenfurt am Wörthersee? Discover the best time to visit

Klagenfurt am Wörthersee in September - FAQ

What are the expected maximum and minimum temperatures in Klagenfurt am Wörthersee during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Klagenfurt am Wörthersee during September?
Significant rainfall exceeding 104.2 mm is expected in Klagenfurt am Wörthersee during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Klagenfurt am Wörthersee during September?
The average wind speed in Klagenfurt am Wörthersee during September is 5 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Klagenfurt am Wörthersee in September?

As you prepare for your trip to Klagenfurt am Wörthersee 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 Klagenfurt am Wörthersee, 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 Klagenfurt am Wörthersee

Explore the daily rainfall trends and prepare for Klagenfurt am Wörthersees September weather 💧

UV exposure in Klagenfurt am Wörthersee during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Klagenfurt am Wörthersee?

Get accurate weather forecasts for Klagenfurt am Wörthersee, located at latitude 46.625 and longitude 14.305. Stay updated with localized weather information tailored for Klagenfurt am Wörthersee.

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