Click on a day for an hourly weather forecast
The temperatures in Yunnan in September are comfortable with low of 14°C and and high up to 22°C.
You can expect rain for roughly half of the month of September in Yunnan. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Yunnan in September 2025.
If you’re planning to visit Yunnan in the near future, we highly recommend that you review the 14 day weather forecast for Yunnan before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 13° / 3° | 4 | 25 | 2 | 47 mm | Bad | Yunnan in January |
| February | 17° / 4° | 1 | 26 | 1 | 13 mm | Good | Yunnan in February |
| March | 21° / 9° | 2 | 29 | 0 | 25 mm | Good | Yunnan in March |
| April | 23° / 12° | 4 | 26 | 0 | 57 mm | Perfect | Yunnan in April |
| May | 24° / 15° | 7 | 24 | 0 | 129 mm | Good | Yunnan in May |
| June | 23° / 16° | 17 | 13 | 0 | 362 mm | Good | Yunnan in June |
| July | 23° / 16° | 19 | 12 | 0 | 296 mm | Good | Yunnan in July |
| August | 23° / 15° | 16 | 15 | 0 | 292 mm | Good | Yunnan in August |
| September | 22° / 14° | 13 | 17 | 0 | 221 mm | Ok | Yunnan in September |
| October | 19° / 11° | 7 | 24 | 0 | 126 mm | Ok | Yunnan in October |
| November | 17° / 7° | 2 | 28 | 0 | 38 mm | Good | Yunnan in November |
| December | 13° / 4° | 3 | 27 | 1 | 28 mm | Ok | Yunnan in December |