Click on a day for an hourly weather forecast
The temperatures in Kunming 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 Kunming. 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 Kunming in September 2025.
If you’re planning to visit Kunming in the near future, we highly recommend that you review the 14 day weather forecast for Kunming before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 13° / 3° | 4 | 25 | 2 | 47 mm | Bad | Kunming in January |
| February | 17° / 4° | 1 | 26 | 1 | 13 mm | Good | Kunming in February |
| March | 21° / 9° | 2 | 29 | 0 | 25 mm | Good | Kunming in March |
| April | 23° / 12° | 4 | 26 | 0 | 57 mm | Perfect | Kunming in April |
| May | 24° / 15° | 7 | 24 | 0 | 129 mm | Good | Kunming in May |
| June | 23° / 16° | 17 | 13 | 0 | 362 mm | Good | Kunming in June |
| July | 23° / 16° | 19 | 12 | 0 | 296 mm | Good | Kunming in July |
| August | 23° / 15° | 16 | 15 | 0 | 292 mm | Good | Kunming in August |
| September | 22° / 14° | 13 | 17 | 0 | 221 mm | Ok | Kunming in September |
| October | 19° / 11° | 7 | 24 | 0 | 126 mm | Ok | Kunming in October |
| November | 17° / 7° | 2 | 28 | 0 | 38 mm | Good | Kunming in November |
| December | 13° / 4° | 3 | 27 | 1 | 28 mm | Ok | Kunming in December |