Kolkata and several neighbouring districts may see light to moderate rain, thunderstorms and gusty winds from Wednesday afternoon as a possible low-pressure system develops over the southeast Bay of Bengal, according to the weather office report cited by Bartaman Patrika. The system is expected to move towards Andhra Pradesh, but moisture from the Bay of Bengal is likely to enter southern West Bengal.
The forecast comes as most parts of Bengal have already seen the monsoon withdraw. However, the weather department has indicated that rainfall is not expected to end completely before Puja. South Bengal is likely to remain dry on Tuesday, while conditions may begin changing from Wednesday.
On Wednesday afternoon, isolated light rain is possible in Kolkata, Howrah, North 24 Parganas, South 24 Parganas, and East and West Midnapore. The forecast covers scattered locations rather than all areas across the districts, indicating that rainfall may be uneven across the wider Kolkata region.
From Thursday through Saturday, skies are expected to remain mainly cloudy over Kolkata, Howrah, Hooghly, North 24 Parganas, South 24 Parganas, East Midnapore, West Midnapore and Jhargram. These areas may receive light to moderate rain accompanied by thunderstorms. Gusty winds could reach speeds of 30 to 40 kilometres per hour.
The combination of rain and wind could affect daily movement in Kolkata and nearby urban areas, particularly during afternoon and evening periods when the forecast indicates changing conditions. The report does not specify any disruption to transport services, school schedules or civic operations. It also does not indicate that a severe weather warning has been issued for the city.
Light rain may continue in coastal districts on Sunday, while drier conditions are expected to return from Monday. After that, temperatures are likely to gradually fall, according to the forecast. The timing of the shift could bring a brief period of unsettled weather before the return of more stable conditions.
North Bengal is expected to remain mainly dry until Thursday. A small possibility of light rain may develop in the upper districts on Friday and Saturday, including Darjeeling, Kalimpong, Jalpaiguri and Alipurduar. The forecast describes the chance of rain in those districts as very limited. Further updates from the weather department will determine whether the projected low-pressure system strengthens and whether rainfall coverage changes across Bengal.