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The temperatures in Lower Austria in September are quite cold with temperatures between 8°C and 18°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Lower Austria during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Lower Austria in September 2025.
If you’re planning to visit Lower Austria in the near future, we highly recommend that you review the 14 day weather forecast for Lower Austria before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -5° | 6 | 8 | 18 | 110 mm | Awful | Lower Austria in January |
| February | 2° / -5° | 7 | 6 | 16 | 92 mm | Awful | Lower Austria in February |
| March | 7° / -1° | 7 | 13 | 11 | 84 mm | Awful | Lower Austria in March |
| April | 13° / 2° | 5 | 19 | 5 | 78 mm | Bad | Lower Austria in April |
| May | 17° / 6° | 12 | 18 | 1 | 165 mm | Ok | Lower Austria in May |
| June | 21° / 10° | 11 | 19 | 0 | 170 mm | Ok | Lower Austria in June |
| July | 23° / 11° | 10 | 21 | 0 | 184 mm | Good | Lower Austria in July |
| August | 23° / 11° | 8 | 23 | 0 | 149 mm | Good | Lower Austria in August |
| September | 18° / 8° | 7 | 23 | 0 | 118 mm | Ok | Lower Austria in September |
| October | 13° / 4° | 7 | 22 | 2 | 93 mm | Awful | Lower Austria in October |
| November | 8° / 1° | 5 | 19 | 6 | 64 mm | Bad | Lower Austria in November |
| December | 3° / -3° | 6 | 11 | 14 | 79 mm | Awful | Lower Austria in December |
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