West Bengal rain forecast: 5 more days of showers as monsoon retreats before Durga Puja
Synopsis
Even as the southwest monsoon retreats, West Bengal is in for five more days of rain before the Durga Puja season — with a low-pressure system spanning UP to Bangladesh and a Bihar cyclonic circulation keeping conditions unsettled. The RMC has cleared Puja week of heavy rain, but Mahalaya on October 10 may still see showers.
Key Takeaways
West Bengal will see rain for at least five more days as the southwest monsoon withdrawal remains underway, the RMC Kolkata said on 6 October 2026 .
A low-pressure area from Uttar Pradesh to Bangladesh and a cyclonic circulation over Bihar are driving the rainfall.
Isolated heavy showers are likely in Jalpaiguri and Alipurduar ; thundershowers expected in parts of south Bengal .
No heavy rain forecast for Durga Puja (from 17 October ), but light to moderate rain possible around Mahalaya on 10 October .
Kolkata recorded a max temperature of 32.08°C and humidity up to 97% on Monday.
Rain is likely to persist across West Bengal for the next five days even as the southwest monsoon withdrawal continues, the Regional Meteorological Centre (RMC) in Kolkata said on Tuesday, 6 October 2026. The weather office ruled out widespread heavy rainfall during this window, with light to moderate showers expected at several places and isolated heavy spells confined to parts of north Bengal.
Key Weather Systems at Play
Eastern Regional Director of the RMC, Habibur Rahman Biswas, said a low-pressure area stretching from Uttar Pradesh to Bangladesh in the lower atmospheric levels was influencing weather over the state. A cyclonic circulation over Bihar is also contributing to the ongoing rainfall activity.
Under the combined influence of these systems, light to moderate rain is likely across all districts of north Bengal, while heavy rainfall may occur at one or two places in Jalpaiguri and Alipurduar districts. Thundershowers have also been forecast for several areas.
District-Wise Outlook for South Bengal
Several districts in south Bengal — including Murshidabad, Nadia, Birbhum, South 24 Parganas, and North 24 Parganas — are expected to receive light to moderate rain accompanied by thundershowers over the coming days. Rainfall activity is likely to continue through the weekend across the region.
Kolkata itself is expected to see light to moderate rain on Tuesday, with cloudy skies through the morning and partly cloudy conditions in the afternoon. The probability of rainfall is forecast to increase from Wednesday through Friday.
Durga Puja Weather Outlook
Revellers planning for Durga Puja, which begins on 17 October, can expect relative relief — the RMC has not forecast heavy rain during the festival period. However, light to moderate rain may occur around Mahalaya on 10 October, which marks the formal start of the festive countdown.
This comes amid a gradual but delayed monsoon withdrawal from eastern India, a pattern that meteorologists have noted in recent years. The lag means festival-goers across the state face at least another week of unsettled conditions before skies are likely to clear.
Kolkata Temperature and Humidity
On Monday, Kolkata recorded a maximum temperature of 32.08°C — within normal range — while the minimum stood at 26.06°C, marginally 0.08 degrees above normal. Relative humidity ranged between 69% and 97%, reflecting the moist conditions typical of a lingering monsoon.
With Durga Puja still nearly a fortnight away, the RMC's evolving forecasts will be watched closely by millions of Bengalis preparing for the state's biggest cultural celebration.
Point of View
But the broader signal is worth noting: a delayed monsoon retreat from eastern India is becoming a recurring pattern, not an anomaly. Festival organisers and pandal committees should treat the 'no heavy rain during Puja' forecast as provisional — the same systems that are stalling withdrawal could easily intensify if the low-pressure area deepens. More critically, the state's drainage infrastructure in Kolkata and the north Bengal districts has repeatedly struggled with even moderate rain. The absence of heavy Puja rain is good news; preparedness for the pre-Puja spell should not be an afterthought.
NationPress
6 Oct 2026
Frequently Asked Questions
How many more days will it rain in West Bengal?
The Regional Meteorological Centre in Kolkata has forecast rain across West Bengal for the next five days, as the southwest monsoon withdrawal continues. Light to moderate showers are expected at several places, with isolated heavy spells in north Bengal districts.
Will it rain during Durga Puja 2026 in Kolkata?
The RMC has not forecast heavy rain during Durga Puja, which begins on 17 October 2026. However, light to moderate rain may occur around Mahalaya on 10 October, ahead of the main festival period.
Which districts in West Bengal are most affected by the current rain?
Jalpaiguri and Alipurduar in north Bengal face the highest risk of isolated heavy showers. In south Bengal, Murshidabad, Nadia, Birbhum, South 24 Parganas, and North 24 Parganas are likely to see light to moderate rain with thundershowers.
What weather systems are causing rain in West Bengal right now?
Two systems are at play: a low-pressure area extending from Uttar Pradesh to Bangladesh in the lower atmosphere, and a cyclonic circulation over Bihar. Together, they are sustaining rainfall activity across both north and south Bengal, according to the RMC's Eastern Regional Director Habibur Rahman Biswas.
What is the current temperature in Kolkata?
On Monday, Kolkata recorded a maximum temperature of 32.08°C — within normal range — and a minimum of 26.06°C, marginally 0.08 degrees above normal. Relative humidity ranged between 69% and 97%.
