Click on a day for an hourly weather forecast
The temperatures in Ukiah in September are comfortable with low of 12°C and and high up to 31°C.
There is little to no rain in Ukiah during September, so it’s a lot easier to explore the city. Just remember to dress in warm layers, as it can still get pretty chilly.
Our weather forecast can give you a great sense of what weather to expect in Ukiah in September 2024.
If you’re planning to visit Ukiah in the near future, we highly recommend that you review the 14 day weather forecast for Ukiah before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 13° / 3° | 7 | 24 | 0 | 179 mm | Bad | Ukiah in January |
| February | 14° / 3° | 6 | 21 | 1 | 182 mm | Good | Ukiah in February |
| March | 15° / 3° | 8 | 22 | 1 | 170 mm | Ok | Ukiah in March |
| April | 19° / 5° | 4 | 26 | 0 | 63 mm | Good | Ukiah in April |
| May | 23° / 8° | 3 | 28 | 0 | 42 mm | Perfect | Ukiah in May |
| June | 29° / 11° | 1 | 29 | 0 | 16 mm | Good | Ukiah in June |
| July | 33° / 14° | 0 | 31 | 0 | 2 mm | Good | Ukiah in July |
| August | 33° / 14° | 0 | 31 | 0 | 3 mm | Good | Ukiah in August |
| September | 31° / 12° | 0 | 30 | 0 | 7 mm | Good | Ukiah in September |
| October | 24° / 9° | 3 | 28 | 0 | 70 mm | Perfect | Ukiah in October |
| November | 17° / 5° | 5 | 25 | 0 | 93 mm | Good | Ukiah in November |
| December | 12° / 3° | 7 | 23 | 1 | 160 mm | Bad | Ukiah in December |