Click on a day for an hourly weather forecast
The weather in Karnataka in September is hot. The average temperatures are between 20°C and 28°C.
There’s going to be many days of rain during the month of September in Karnataka.
Karnataka should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Karnataka in September 2025.
If you’re planning to visit Karnataka in the near future, we highly recommend that you review the 14 day weather forecast for Karnataka before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 29° / 17° | 1 | 31 | 0 | 12 mm | Good | Karnataka in January |
| February | 32° / 18° | 1 | 28 | 0 | 14 mm | Good | Karnataka in February |
| March | 35° / 22° | 1 | 30 | 0 | 27 mm | Ok | Karnataka in March |
| April | 36° / 24° | 4 | 26 | 0 | 61 mm | Ok | Karnataka in April |
| May | 34° / 23° | 9 | 23 | 0 | 183 mm | Bad | Karnataka in May |
| June | 30° / 21° | 10 | 20 | 0 | 183 mm | Ok | Karnataka in June |
| July | 28° / 20° | 9 | 22 | 0 | 141 mm | Good | Karnataka in July |
| August | 28° / 20° | 14 | 17 | 0 | 251 mm | Good | Karnataka in August |
| September | 28° / 20° | 15 | 15 | 0 | 304 mm | Good | Karnataka in September |
| October | 28° / 19° | 13 | 18 | 0 | 297 mm | Good | Karnataka in October |
| November | 27° / 18° | 8 | 22 | 0 | 158 mm | Good | Karnataka in November |
| December | 27° / 17° | 2 | 29 | 0 | 40 mm | Perfect | Karnataka in December |