Click on a day for an hourly weather forecast
The weather in Roseville in September is hot. The average temperatures are between 15°C and 32°C. Usually the days in September are hot while the nights are a bit cooler.
You can expect up to 3 rainy days in Roseville during the month of September.
Our weather forecast can give you a great sense of what weather to expect in Roseville in September 2025.
If you’re planning to visit Roseville in the near future, we highly recommend that you review the 14 day weather forecast for Roseville before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 5° | 5 | 26 | 0 | 153 mm | Good | Roseville in January |
| February | 15° / 5° | 5 | 23 | 0 | 162 mm | Good | Roseville in February |
| March | 17° / 6° | 8 | 23 | 0 | 196 mm | Ok | Roseville in March |
| April | 21° / 8° | 4 | 26 | 0 | 75 mm | Good | Roseville in April |
| May | 26° / 11° | 2 | 29 | 0 | 38 mm | Perfect | Roseville in May |
| June | 31° / 14° | 1 | 29 | 0 | 14 mm | Good | Roseville in June |
| July | 35° / 16° | 0 | 31 | 0 | 3 mm | Ok | Roseville in July |
| August | 34° / 16° | 0 | 31 | 0 | 3 mm | Ok | Roseville in August |
| September | 32° / 15° | 0 | 30 | 0 | 9 mm | Good | Roseville in September |
| October | 25° / 12° | 2 | 29 | 0 | 64 mm | Perfect | Roseville in October |
| November | 18° / 8° | 4 | 26 | 0 | 110 mm | Good | Roseville in November |
| December | 13° / 5° | 6 | 25 | 0 | 154 mm | Ok | Roseville in December |