Click on a day for an hourly weather forecast
The temperatures in Uster in September are quite cold with temperatures between 9°C and 21°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Uster 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 Uster in September 2025.
If you’re planning to visit Uster in the near future, we highly recommend that you review the 14 day weather forecast for Uster before you arrive.
Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
---|---|---|---|---|---|---|---|
January | 4° / -3° | 6 | 13 | 12 | 91 mm | Awful | Uster in January |
February | 5° / -2° | 6 | 12 | 10 | 75 mm | Awful | Uster in February |
March | 11° / 0° | 6 | 19 | 6 | 65 mm | Bad | Uster in March |
April | 16° / 4° | 5 | 24 | 2 | 55 mm | Ok | Uster in April |
May | 19° / 7° | 8 | 23 | 0 | 120 mm | Ok | Uster in May |
June | 23° / 11° | 7 | 23 | 0 | 120 mm | Good | Uster in June |
July | 25° / 12° | 6 | 25 | 0 | 136 mm | Perfect | Uster in July |
August | 25° / 12° | 5 | 26 | 0 | 96 mm | Perfect | Uster in August |
September | 21° / 9° | 3 | 27 | 0 | 67 mm | Good | Uster in September |
October | 15° / 5° | 5 | 26 | 0 | 75 mm | Good | Uster in October |
November | 9° / 2° | 6 | 20 | 4 | 69 mm | Bad | Uster in November |
December | 5° / -2° | 7 | 15 | 9 | 105 mm | Awful | Uster in December |