South Bengal heavy rain alert this weekend as low-pressure area persists
Synopsis
A lingering low-pressure system over South Bengal is set to unleash heavy rain across coastal and adjoining districts from Saturday to Monday, with South 24 Parganas, East Midnapore, and Jhargram in the direct firing line. Despite the downpours, the RMC warns that humidity discomfort will persist — offering residents little more than intermittent relief.
Key Takeaways
The Regional Meteorological Centre (RMC) , Kolkata , issued a heavy rain forecast on 27 August for south Bengal from Saturday to Monday .
A low-pressure area over south Bengal is the primary driver of the anticipated rainfall surge.
On Saturday , South 24 Parganas , Hooghly , and East Midnapore face the highest risk of heavy showers.
On Sunday , heavy rain is likely at isolated spots in North 24 Parganas , Jhargram , and Bankura .
Jalpaiguri and Alipurduar in north Bengal are set for heavy rain on Thursday , after which activity is expected to ease.
Kolkata recorded a maximum of 32.05°C and humidity between 75–95% on Wednesday, with sultry conditions expected to continue.
The Regional Meteorological Centre (RMC) in Kolkata on Thursday, 27 August issued a forecast warning of heavy rainfall across multiple South Bengal districts from Saturday through Monday, driven by a low-pressure area currently positioned over the region. Coastal and adjoining districts face the highest risk of intense downpours over the three-day window.
Key Developments
RMC official Sourish Banerjee confirmed that the low-pressure system over south Bengal is expected to sustain rainfall activity across several parts of the state over the coming days. Thursday itself will see mainly cloudy skies with light to moderate rain across south Bengal, including Kolkata.
The intensity is forecast to rise sharply from Saturday. On Saturday, South 24 Parganas, Hooghly, and East Midnapore are likely to receive relatively heavy rain, with heavy showers possible at one or two locations in each district. On Sunday, heavy rain is expected at isolated places in South 24 Parganas, North 24 Parganas, Jhargram, and Bankura. By Monday, East Midnapore, West Midnapore, and Jhargram may receive heavy rain at some locations, while the rest of south Bengal is likely to see light to moderate showers.
Kolkata City Outlook
Kolkata and its surrounding areas are expected to remain mainly cloudy through the period, with one or two spells of light to moderate rain on Thursday. Rainfall may increase slightly in the city from Saturday to Monday, though the most intense activity is projected for coastal and adjoining districts rather than the city core.
On Wednesday, Kolkata recorded a maximum temperature of 32.05 degrees Celsius — 0.02 degrees below normal — and a minimum of 28.03 degrees Celsius, which was 1.07 degrees above normal. Relative humidity ranged between 75% and 95%, reflecting the muggy conditions that have gripped the city.
Humidity Discomfort to Continue
Despite the anticipated rainfall, humidity-related discomfort is expected to persist across south Bengal. The region's proximity to the Bay of Bengal keeps moisture levels elevated, meaning that even during rain breaks, sultry and uncomfortable conditions could return at different times of the day. Residents are advised to expect intermittent relief rather than a sustained cool-down.
North Bengal Forecast
In north Bengal, rain is also expected across a few districts over the next two days. Jalpaiguri and Alipurduar are likely to receive heavy rain on Thursday, after which rainfall activity is expected to gradually decline across the region.
With the low-pressure system showing no immediate sign of dissipating, authorities and residents in coastal South Bengal districts should remain on alert through the early part of next week.
Point of View
But the three-day sustained rainfall window — covering coastal districts already prone to waterlogging — deserves closer official attention than routine forecasts typically receive. What the RMC advisory does not address is drainage preparedness in districts like South 24 Parganas and East Midnapore, where past heavy-rain events have caused prolonged inundation. The persistence of high humidity even during rain spells signals that this is not a system that will break the heat — it will simply add moisture stress. Local administrations would do well to treat this as an operational alert, not just a weather bulletin.
NationPress
27 Aug 2026
Frequently Asked Questions
Which South Bengal districts are on heavy rain alert this weekend?
South 24 Parganas, Hooghly, and East Midnapore are forecast to receive heavy rain on Saturday, while North 24 Parganas, Jhargram, and Bankura face heavy showers on Sunday. East Midnapore, West Midnapore, and Jhargram are also likely to see heavy rain at some locations on Monday.
What is causing the heavy rain in South Bengal?
A low-pressure area currently positioned over South Bengal is the primary driver, according to RMC official Sourish Banerjee. The system is expected to sustain rainfall activity across several parts of the state over the next few days.
What is the weather forecast for Kolkata this weekend?
Kolkata is expected to remain mainly cloudy through the period, with one or two spells of light to moderate rain on Thursday. Rainfall may increase slightly in the city from Saturday to Monday, though the heaviest activity is forecast for coastal and adjoining districts.
Will the rain bring relief from heat and humidity in South Bengal?
Not entirely. The RMC has warned that humidity-related discomfort is likely to persist despite the rainfall, as the region's proximity to the sea keeps moisture levels high. Sultry and uncomfortable conditions could return at different times of the day even during the rain period.
What is the weather outlook for North Bengal?
Jalpaiguri and Alipurduar are expected to receive heavy rain on Thursday. Rainfall activity across north Bengal is then forecast to gradually decline over the following days.
