Is it raining now in Siliguri?
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15 AugNo upcoming precipitation for the next hour.
Last update: 17:30, 15 Aug 2026
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Rain in Siliguri: What You Need to Know
Siliguri weather doesn't wait for local rain to turn dangerous — July alone averages 842 mm, and the Teesta and Mahananda rivers that bracket the city carry Himalayan runoff from Darjeeling and Sikkim independent of whatever's falling over Siliguri itself. A single city forecast can't show whether that upstream surge has reached the Mahananda yet; a hyperlocal radar can.
Siliguri sits at the foothills of the eastern Himalayas, directly downstream of the steep Darjeeling and Sikkim terrain that channels rainfall into fast-moving runoff. That orographic amplifier is why the Tista basin has recorded catastrophic floods in 1950, 1968, 1973, 1975, 1976 and 1978 — the October 1968 event combined with a landslide that killed 667 people across the region — and why a rain total measured in Siliguri itself tells only half the story.
RainViewer pulls its India Meteorological Department (IMD) radar feed into a live map updated every 5 minutes, tracking cells across both Siliguri and the Sikkim terrain upstream. What a city-only forecast can't show is whether a cell over Sevoke has already fed into the Teesta — the live map does.
Rain by Season in Siliguri
Southwest Monsoon (mid-June–September)
Siliguri's monsoon runs mid-June through September, with July the peak month at 842 mm — among the heaviest monthly totals of any major Indian city. This is the window when the Sevoke–Sikkim Road, the main link to Gangtok, faces its highest risk of closure from flash floods originating upstream in Sikkim.
Transition Months (June and October)
June marks the transition into monsoon and October the transition out, both periods when Himalayan-fed river levels can shift faster than local rainfall alone would suggest. Tea garden operators and NH10 travelers face the least predictable conditions of the year during these weeks, since a dry day in Siliguri says nothing about conditions upstream in Darjeeling or Sikkim.
Dry Season / Winter (November–February)
November is Siliguri's driest month, averaging only about 10 mm, and the local three-season climate structure settles into a mild winter through February. Tea garden and tourism operators see their steadiest weather of the year, though the Teesta and Mahananda still carry residual Himalayan flow.
Why You Need a Rain Radar in Siliguri
Siliguri Tea Auction Centre traders
The Siliguri Tea Auction Centre trades millions of kilograms annually from surrounding Darjeeling and Dooars estates, and buyers checking the radar before an auction-day delivery run can see whether a cell is sitting over the collection routes.
Sevoke–Sikkim Road (NH10) travelers
NH10, the main link from Siliguri to Gangtok, has been repeatedly shut by flash floods originating upstream in Sikkim, including near the Coronation Bridge and Sevoke Railway Bridge chokepoints. Checking the radar over the Sikkim side of the route before departure can mean the difference between a clear drive and a stranded one.
Bagdogra Airport travelers
Bagdogra Airport, about 15 km from Siliguri, handles international routes to Bangkok and Dhaka and moves over 3.2 million passengers a year. Checking the radar before an airport run shows whether a cell has cleared the corridor or is still building.
New Jalpaiguri (NJP) railway commuters
New Jalpaiguri junction is the city's key rail gateway for freight and passenger transfer to the Northeast, and travelers timing a station arrival can check whether rain is likely to slow the final approach roads.
Residents near the Mahananda and Teesta
The Mahananda runs through the city itself while the Teesta borders it to the east, and both rise independently of Siliguri's own rainfall since they're fed by Sikkim and Darjeeling catchments. Checking the radar over the hills, not just the city, gives residents near either river a real head start.
RainViewer Radar Coverage in Siliguri
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. The same map extends north into the Darjeeling hills and east toward the Dooars, though — as across the wider Himalayan foothills — coverage thins with elevation.
Siliguri Rain Radar: Frequently Asked Questions
- Is it raining in Siliguri right now?
The only accurate answer is a live radar, because Siliguri's rivers can rise from rain falling entirely outside the city, in the Darjeeling and Sikkim hills upstream. A hyperlocal radar reading shows both the local cell and the upstream catchment at once, pulling India Meteorological Department (IMD) data that RainViewer refreshes every 5 minutes.
- Can I visit a Darjeeling tea garden from Siliguri today?
A tea garden day trip from Siliguri is workable to plan around a live radar check, since NH10 and the Sevoke–Sikkim Road are the routes most exposed to upstream Sikkim flash flooding. Checking the radar over the hills before departure, not just over Siliguri itself, is the more reliable signal during monsoon season.
- Does rain affect the Sevoke–Sikkim Road (NH10) out of Siliguri?
NH10, the main route from Siliguri to Gangtok, has been repeatedly rendered inoperative by flash floods originating in Sikkim, well upstream of any rain falling on Siliguri itself. Checking the radar over the Sikkim side of the corridor before departure, near the Coronation Bridge and Sevoke Railway Bridge chokepoints, shows whether the road is likely to stay open.
- Does Siliguri flood when it rains?
Siliguri itself sits downstream of catastrophic flood history in the Tista basin, with major events recorded in 1950, 1968, 1973, 1975, 1976 and 1978. The Teesta Barrage at Gajoldoba and the Teesta–Mahananda Canal regulate flow into the Mahananda running through the city, but a sudden upstream surge — like the October 2023 Lhonak Lake glacial outburst — can still overwhelm those controls faster than local rain alone would suggest.
- When is the best time to visit Siliguri to avoid rain?
November is Siliguri's driest month, averaging only about 10 mm, making the surrounding winter months the easiest window to visit the tea gardens or travel NH10 toward Darjeeling and Sikkim. Visiting during the mid-June–September monsoon still works, but checking the radar over both Siliguri and the hills upstream before any NH10 trip avoids a stranded drive.
- Why is rain in Siliguri so hard to predict from the city alone?
Siliguri sits at the foothills of the eastern Himalayas, directly downstream of steep Darjeeling and Sikkim terrain that channels rainfall into fast runoff, so the Teesta and Mahananda can spike from rain that never touches the city itself. That orographic amplifier is why a Siliguri-only forecast misses the flood risk that a wider radar view catches.
- How often does the Siliguri rain radar update?
RainViewer's hyperlocal radar for Siliguri updates every 5 minutes, drawing on India Meteorological Department (IMD) data via mausam.imd.gov.in. That refresh rate is fast enough to catch a cell building over Sevoke before it feeds into the Teesta.
- Can I get a warning before rain hits Siliguri?
Setting a rain alert for a specific point, such as the Siliguri Tea Auction Centre or a home near the Mahananda, gives warning before a cell arrives instead of after. RainViewer fires that alert automatically once the radar detects the cell approaching, enough lead time to secure an auction delivery or move away from the riverbank.
Track Rain in Siliguri in Real Time
Every monsoon, flash floods born in the Sikkim hills can shut NH10 and swell the Teesta before a single drop falls on Siliguri itself.
Siliguri's rivers rise from rain the city never sees, so a local-only forecast misses the risk entirely. Only a live map covering both the city and the hills upstream catches it.
Your weather app says light rain for Siliguri this afternoon. RainViewer shows a heavier cell building over Sevoke, 22 kilometers upstream, and reaching the Teesta in 40 minutes.
Track rain in Siliguri — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
RainViewer's 2-hour forecast in 5-minute slices shows exactly when a cell over Sevoke will reach the Teesta, in far finer steps than an hourly forecast.
Rain alerts before arrival
Set a rain alert for the Tea Auction Centre or a home near the Mahananda, and RainViewer fires it before the cell arrives, not after.
Direction arrows on the map
Direction arrows show whether an incoming cell is tracking down from the Darjeeling hills to the north, the direction that feeds Siliguri's heaviest flood risk.
48 hours of radar history
48 hours of radar history shows how the last Sikkim-triggered surge actually tracked down toward the city.
Multiple locations
Track the Tea Auction Centre, Bagdogra Airport, and a home near the Mahananda at the same time, each with its own alert.
RainViewer
