Click on a day for an hourly weather forecast
The temperatures in Riverside in October are comfortable with low of 12°C and and high up to 27°C.
The wather in Riverside in October can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Riverside in October 2025.
If you’re planning to visit Riverside in the near future, we highly recommend that you review the 14 day weather forecast for Riverside before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 18° / 6° | 3 | 28 | 0 | 44 mm | Good | Riverside in January |
| February | 18° / 6° | 2 | 26 | 0 | 52 mm | Good | Riverside in February |
| March | 20° / 7° | 2 | 29 | 0 | 30 mm | Good | Riverside in March |
| April | 23° / 8° | 1 | 29 | 0 | 19 mm | Perfect | Riverside in April |
| May | 25° / 10° | 1 | 30 | 0 | 10 mm | Perfect | Riverside in May |
| June | 29° / 13° | 0 | 30 | 0 | 3 mm | Good | Riverside in June |
| July | 32° / 17° | 2 | 29 | 0 | 27 mm | Good | Riverside in July |
| August | 33° / 17° | 1 | 30 | 0 | 19 mm | Good | Riverside in August |
| September | 31° / 16° | 0 | 30 | 0 | 11 mm | Good | Riverside in September |
| October | 27° / 12° | 1 | 30 | 0 | 13 mm | Perfect | Riverside in October |
| November | 22° / 9° | 1 | 29 | 0 | 21 mm | Good | Riverside in November |
| December | 17° / 5° | 3 | 28 | 0 | 61 mm | Good | Riverside in December |