Is it raining now in Raiganj?
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25 AugNo upcoming precipitation for the next hour.
Last update: 04:30, 25 Aug 2026
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Rain in Raiganj: What You Need to Know
Raiganj weather runs on a humid subtropical pattern: a convective southwest monsoon from June to September, then a long dry stretch from October to May that barely wets the ground. A live rain radar for Raiganj earns its place in that wet window, because the Kulik River does not need a record storm to overflow — in August 2017, Raiganj C.D. Block recorded 471.10mm of rain for the month, and the heaviest spell, August 11-13, pushed the river out of its banks and into the town. RainViewer's hyperlocal radar shows the difference between a passing shower and the kind of multi-day cell that produced that surge.
The mechanism is floodplain channeling. The Kulik River's channel capacity is exceeded during monsoon surges arriving from the wider Mahananda river basin, and once that threshold is crossed, water spreads across the floodplain and into Raiganj town rather than staying contained in the riverbed. A district-wide forecast can call for "heavy rain" without showing whether that rain is landing upstream near the Mahananda catchment or directly over Raiganj, which is the difference between a dry evening and water reaching a shop counter on a low-lying street.
RainViewer draws its Raiganj feed from the India Meteorological Department (IMD), refreshed every 5 minutes, so the live map reflects the newest radar scan rather than a forecast written hours earlier. Raiganj sits in Uttar Dinajpur district, West Bengal, close enough to the Kulik River corridor that a cell tracking down from the north shows up on the map before it reaches town. What the live radar reveals and a forecast cannot: whether a cell over the Mahananda basin is weakening as it approaches or intensifying toward another 2017-style spell.
Rain by Season in Raiganj
Southwest monsoon (June–September)
Rain builds steadily from June, peaking in August — the month that produced the 2017 flood at 471.10mm. Kulik Bird Sanctuary, Asia's largest heronry, hosts breeding colonies of egrets and storks through this window, drawing visitors who plan trips around the rain.
Dry season (October–May)
Precipitation drops sharply after the monsoon retreats and stays low through the cool winter months into the hot pre-monsoon stretch. Raiganj's average annual temperature sits near 26°C, with May running hottest at around 36°C and January coolest near 13°C.
Transition and flood-recession weeks
The shift out of the wet season is when floodwater from the Kulik River recedes slowest, and drainage in low-lying parts of town lags behind the drop in rainfall. Waterlogging complaints in homes and shops near the river tend to persist into this window even after the heaviest rain has passed.
Why You Need a Rain Radar in Raiganj
Shopkeepers and residents near the Kulik River
Recent waterlogging has reached inside homes and shops in Raiganj during heavy monsoon spells, a problem the town's drainage has not kept pace with. Watching the radar before a storm cell arrives gives residents near the river a few minutes to move stock or belongings off the floor.
Commuters on NH 34 toward Kolkata
NH 34 is Raiganj's main road link to Kolkata, and a heavy cell sitting over the corridor slows both private and freight traffic. Checking the radar before a trip shows whether the rain ahead is a short burst or a system likely to settle in for hours.
Rail passengers at Raiganj railway station
Raiganj station (RGJ) sits on the Barsoi–Radhikapur branch line, served by the Kolkata–Radhikapur Express and the Kolkata–Radhikapur Kulik Express. A passenger timing a station arrival around a monsoon downpour can use the radar to judge whether to leave early or wait out a passing cell.
Visitors to Kulik Bird Sanctuary
The sanctuary's heronry draws visitors specifically during the breeding season that overlaps with the monsoon, and outdoor viewing depends on dry gaps between showers. Checking the radar before heading out shows whether the next hour is likely to stay clear enough for birdwatching.
Uttar Dinajpur district flood monitoring
The West Bengal Flood Hazard Atlas lists this district among the state's flood-prone areas, tied directly to Kulik River behavior. Residents tracking a system building over the Mahananda basin get a clearer picture from live radar than from a district-wide bulletin issued once a day.
RainViewer Radar Coverage in Raiganj
RainViewer draws radar data for India from the India Meteorological Department (IMD) via mausam.imd.gov.in, updated every 5 minutes. Coverage is strongest across the Gangetic Plain, western coast, and major cities; sparser in the Himalayan foothills and remote northeast. Raiganj sits within the Gangetic Plain coverage belt, with the wider Uttar Dinajpur and North Bengal corridor visible on the same map sweep.
Raiganj Rain Radar: Frequently Asked Questions
- Is it raining in Raiganj right now?
The fastest way to know is a live hyperlocal radar, since a monsoon cell over the Kulik River corridor can turn a dry afternoon wet within minutes while a nearby part of Uttar Dinajpur stays clear. RainViewer pulls fresh India Meteorological Department (IMD) radar scans every 5 minutes, so the map reflects current conditions rather than a forecast written hours earlier.
- Is it safe to visit Kulik Bird Sanctuary during monsoon season?
Visits are workable between showers, since the heronry's breeding season runs through the same June–September window as the monsoon. Checking the live radar before heading out shows whether the next hour or two is likely to stay dry enough for birdwatching.
- Does rain affect travel on NH 34 toward Kolkata?
Heavy monsoon rain over the NH 34 corridor slows both freight and passenger traffic between Raiganj and Kolkata, particularly when a cell settles rather than passes through. Checking the radar before a trip shows whether the rain ahead will clear in minutes or hold for hours.
- Does Raiganj flood when it rains?
Yes — the Kulik River is Raiganj's named primary flood risk, and its channel overflowed into the town during the August 2017 spell that dropped 471.10mm in one month. The West Bengal Flood Hazard Atlas lists Uttar Dinajpur district as flood-prone, and recent waterlogging has reached homes and shops even outside major flood events.
- When is the best time to visit Raiganj to avoid heavy rain?
October through May is Raiganj's dry season, well clear of the June–September monsoon that peaks in August. Visitors planning a trip to Kulik Bird Sanctuary outside the breeding season will also find drier, more predictable conditions.
- Why does rain in Raiganj sometimes flood the town with no warning?
The Kulik River's channel capacity is fixed, but the rain that fills it often falls upstream in the wider Mahananda river basin rather than over Raiganj itself. A local forecast can look calm even as upstream rain is about to arrive as a surge, which is why watching the river-corridor radar matters more than watching the sky above town.
- Is there a live rain radar for Raiganj?
Yes — RainViewer's hyperlocal radar for Raiganj draws directly from the India Meteorological Department (IMD), refreshing every 5 minutes with new scans instead of a periodic forecast update. The map covers the Kulik River corridor and the wider Uttar Dinajpur district on the same sweep.
- Can I get a warning before rain hits my part of Raiganj?
Yes — RainViewer's rain alerts can be set for a specific point, such as a home or shop near the Kulik River, so residents get a notification as a cell approaches instead of checking the map manually. That advance window matters most for anyone below the flood line who needs time to move belongings before water rises.
Track Rain in Raiganj in Real Time
Shopkeepers and residents near the Kulik River have watched water reach their floors before, and NH 34 traffic toward Kolkata slows every time a monsoon cell settles over Raiganj instead of passing through. A district-wide forecast cannot tell you which side of town is about to get the worst of it.
A generic forecast says heavy rain expected for Raiganj this week. RainViewer's live hyperlocal radar shows the Kulik River corridor filling upstream while central Raiganj stays dry for now — that is the difference between moving stock off the floor early and finding out too late.
Track rain in Raiganj — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
See whether a cell building over the Mahananda basin is heading toward Raiganj or sliding past.
Rain alerts before arrival
Set an alert for a home or shop near the Kulik River and get notified before water starts rising.
Direction arrows on the map
See whether a system is tracking in from the north along the river corridor or approaching from another direction.
48 hours of radar history
Review the last two days to see how fast a cell like the August 2017 spell built before it flooded the town.
Multiple locations
Track the Kulik River corridor, Raiganj railway station, and Kulik Bird Sanctuary at the same time.
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