Click on a day for an hourly weather forecast
The temperatures in Thimphu in September are usually low and can range between 11°C and 17°C.
You can expect rain for roughly half of the month of September in Thimphu. 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 Thimphu in September 2025.
If you’re planning to visit Thimphu in the near future, we highly recommend that you review the 14 day weather forecast for Thimphu before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / -2° | 2 | 17 | 12 | 21 mm | Bad | Thimphu in January |
| February | 8° / -1° | 4 | 13 | 13 | 46 mm | Bad | Thimphu in February |
| March | 11° / 2° | 11 | 9 | 12 | 81 mm | Awful | Thimphu in March |
| April | 14° / 6° | 16 | 13 | 2 | 132 mm | Bad | Thimphu in April |
| May | 15° / 9° | 15 | 16 | 0 | 215 mm | Ok | Thimphu in May |
| June | 18° / 12° | 13 | 17 | 0 | 267 mm | Ok | Thimphu in June |
| July | 18° / 13° | 18 | 13 | 0 | 430 mm | Ok | Thimphu in July |
| August | 19° / 12° | 15 | 16 | 0 | 361 mm | Ok | Thimphu in August |
| September | 17° / 11° | 12 | 18 | 0 | 244 mm | Ok | Thimphu in September |
| October | 15° / 7° | 7 | 24 | 0 | 109 mm | Ok | Thimphu in October |
| November | 11° / 3° | 4 | 20 | 5 | 24 mm | Bad | Thimphu in November |
| December | 9° / 0° | 2 | 21 | 9 | 16 mm | Bad | Thimphu in December |