Klagenfurt am Wörthersee in September
6.7out of 10
Possible, with caveats
Mild: highs around 18°C. Frequent rain: about 11 rainy days.
18°CAvg high
9°CAvg low
11Rainy days (138 mm)
12:19 hDaylight
06:48Sunrise · 19:06 Sunset
Why this score
- Mild: highs around 18°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.4 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 2°C | -6°C | 49 mm | 7 | – | – | 4.4 |
| February | 4°C | -5°C | 60 mm | 7 | – | – | 4.7 |
| March | 8°C | -1°C | 76 mm | 10 | – | – | 5.4 |
| April | 13°C | 3°C | 95 mm | 13 | – | – | 5.9 |
| May | 18°C | 8°C | 119 mm | 15 | – | – | 6.3 |
| June | 21°C | 12°C | 136 mm | 15 | – | – | 6.8 |
| July | 23°C | 13°C | 141 mm | 15 | – | – | 6.8 |
| August | 23°C | 13°C | 153 mm | 14 | – | – | 6.9 |
| September | 18°C | 9°C | 138 mm | 11 | – | – | 6.7 |
| October | 13°C | 5°C | 121 mm | 10 | – | – | 6.1 |
| November | 7°C | 1°C | 120 mm | 11 | – | – | 5.0 |
| December | 2°C | -5°C | 79 mm | 8 | – | – | 4.3 |
Frequently asked questions
How hot is Klagenfurt am Wörthersee in September?
Daytime highs average 18°C and nights about 9°C.
When is the best time to visit Klagenfurt am Wörthersee?
The best months are August, June, July, September.