West Bengal weather in September
September is one of the least pleasant months in West Bengal: highs of 30°C (86°F) and about 259 mm (10.2 in) of rain on average. Nights average 25°C (77°F) and cloud cover 75% (NASA POWER, 2001–2025 averages). It is the 3rd wettest month of the year and the 6th coolest. Compared with August, it is about as warm and drier; October brings highs of 30°C (85°F) and 146 mm (5.7 in) of rain.
Figures are long-term averages for Kolkata, the largest city in West Bengal. See below for other places.
Is September a good time to visit West Bengal?
least pleasant month Weather score 42/100.
September is one of the least pleasant months for weather in West Bengal. For better conditions, consider Nov–Feb.
Does it rain a lot in West Bengal in September?
Yes, it is one of the rainy months: about 259 mm (10.2 in) falls in an average September. It is the 3rd wettest month of the year.
How warm is West Bengal in September?
Days average 30°C (86°F) and nights 25°C (77°F).
West Bengal weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 24°C (76°F) | 10°C (50°F) | 13 mm | 27% | best |
| February | 30°C (85°F) | 15°C (58°F) | 20 mm | 25% | best |
| March | 35°C (95°F) | 20°C (68°F) | 31 mm | 34% | fair |
| April | 38°C (101°F) | 24°C (76°F) | 50 mm | 44% | fair |
| May | 37°C (98°F) | 26°C (79°F) | 144 mm | 60% | least pleasant |
| June | 33°C (92°F) | 27°C (80°F) | 231 mm | 82% | least pleasant |
| July | 31°C (88°F) | 26°C (79°F) | 333 mm | 88% | least pleasant |
| August | 31°C (87°F) | 26°C (78°F) | 308 mm | 86% | least pleasant |
| September | 30°C (86°F) | 25°C (77°F) | 259 mm | 75% | least pleasant |
| October | 30°C (85°F) | 22°C (72°F) | 146 mm | 47% | fair |
| November | 27°C (81°F) | 17°C (62°F) | 23 mm | 25% | best |
| December | 24°C (75°F) | 11°C (53°F) | 9 mm | 26% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across West Bengal in September
Weather can differ a lot within West Bengal: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Kolkata | 30°C (86°F) | 25°C (77°F) | 259 mm | least pleasant |
| Howrah | 30°C (86°F) | 25°C (77°F) | 259 mm | least pleasant |
| Durgapur | 31°C (87°F) | 25°C (76°F) | 227 mm | least pleasant |
| Siliguri | 29°C (85°F) | 24°C (75°F) | 291 mm | least pleasant |
| Āsansol | 30°C (86°F) | 24°C (76°F) | 237 mm | least pleasant |
| Bhātpāra | 30°C (87°F) | 25°C (77°F) | 233 mm | least pleasant |
| Maheshtala | 30°C (86°F) | 25°C (77°F) | 259 mm | least pleasant |
| Shyamnagar | 30°C (87°F) | 25°C (77°F) | 233 mm | least pleasant |
| Rajpur Sonarpur | 30°C (86°F) | 25°C (77°F) | 259 mm | least pleasant |
| Pānihāti | 30°C (86°F) | 25°C (77°F) | 259 mm | least pleasant |
| Kāmārhāti | 30°C (86°F) | 25°C (77°F) | 259 mm | least pleasant |
| Kulti | 30°C (86°F) | 24°C (76°F) | 237 mm | least pleasant |