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Last update: 23:30, 24 Aug 2026
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Rain in Delhi: What You Need to Know
Delhi weather turns from dry heat to intense monsoon bursts almost overnight — over 80% of the city's roughly 774 mm annual rainfall falls between June and September, and July alone typically exceeds 200 mm. The record-setting 11 July 2023 downpour dropped six inches of rain in a single day, the highest single-day total in 40 years, and it's exactly the kind of sudden, city-specific event a hyperlocal radar is built to catch.
Delhi's urban heat island effect measurably intensifies its own rainfall — studies show summer rain increasing 5 to 25% downwind of the built-up city, meaning the city itself is partly manufacturing the storms that flood it. The low-lying Aravalli Ridge to the southwest, under 300 meters, does little to block rain but does channel local drainage patterns, concentrating runoff in specific low-lying corridors like Minto Bridge rather than spreading it evenly.
RainViewer draws Delhi's radar data from the India Meteorological Department (IMD), refreshed every 5 minutes. On the live map, that's the difference between a monsoon cell weakening over Dwarka and one tracking straight for the ITO district — detail a rain percentage alone can't give you.
Rain by Season in Delhi
Monsoon (late June to mid-September, peaking July–August)
Delhi's wet season is short and intense: late June through mid-September delivers over 80% of the year's rain, with July typically exceeding 200 mm on its own. The 11 July 2023 record — six inches in a single day — pushed the Yamuna to its highest level since 1978, crossing the evacuation mark at the Old Railway Bridge gauge.
Pre-monsoon heatwave (April–June)
April through June brings Delhi's severe pre-monsoon heatwave period, with classified heatwave days rising 35% between 2018 and 2019 alone, before the sharp transition into monsoon rain by late June. This buildup makes the monsoon's arrival date itself the biggest planning uncertainty of the year.
Dry season (October–May)
October through May is Delhi's dry season, including a cold, fog-bound winter that follows the monsoon's withdrawal. Outside June–September, both direct flooding and Yamuna gauge risk drop sharply.
Why You Need a Rain Radar in Delhi
Government office commuters
ITO, a major central Delhi government-office district, reported major congestion and waterlogging during a July 2025 heavy-rain event, even in a year when nearby Minto Bridge stayed dry. Checking the radar before commuting shows which corridor a cell is actually tracking toward, rather than assuming both flood together.
Minto Bridge underpass commuters
Minto Bridge has flooded even in mild showers since the 1940s–50s, driven by a 1 km catchment area draining into it and a deliberately low bridge height. A live radar check before driving through shows whether a cell is building over the catchment, since even a modest shower can close the underpass.
Delhi Metro riders
Delhi Metro, used by 2.5 million people daily, had sections shut during the 2023 Yamuna flood, adding pressure to already-waterlogged roads. A radar check before a metro-dependent trip shows whether conditions are building toward a service disruption.
Yamuna floodplain-adjacent workers and residents
The Yamuna crossed its evacuation mark of 206.34 m at the Old Railway Bridge gauge on 11 July 2023, the highest level since 1978, flooding parks, underpasses, markets and hospitals and forcing roughly 7,500 people into evacuation camps. Watching upstream rain on the radar gives floodplain-adjacent residents lead time a same-day forecast can't.
Indira Gandhi International Airport travelers
IGI Airport, the world's 9th-busiest as of 2025 and India's busiest since 2009, handled 79.2 million passengers in FY2024–25. A radar check before heading to the airport shows whether a monsoon cell is likely to disrupt the drive during a July or August downpour.
RainViewer Radar Coverage in Delhi
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. From Delhi, India, the same feed extends across the National Capital Region to Gurugram, Noida and Ghaziabad.
Delhi Rain Radar: Frequently Asked Questions
- Is it raining in Delhi right now?
A live radar check is the only accurate answer — Delhi's urban heat island effect intensifies summer rainfall by 5 to 25% downwind of the built-up city, so rain in Delhi can be hammering ITO while Dwarka stays dry. RainViewer's hyperlocal radar, sourced from the India Meteorological Department (IMD) and updated every 5 minutes, shows exactly where rain is falling across the city right now.
- Should I drive through Minto Bridge today?
Check the radar first — Minto Bridge has flooded even in mild showers since the 1940s–50s because of its low height and a 1 km catchment draining straight into it. RainViewer's 5-minute updates show whether rain is building over that catchment before you get there. Four 75-HP suction pumps installed in 2021 help, but the underpass still floods fast in heavier cells.
- Does rain affect Delhi Metro service?
Yes — sections of the Delhi Metro, used by 2.5 million people daily, were shut during the July 2023 flood when the Yamuna crossed its evacuation mark. Checking the radar before a metro-dependent trip shows whether conditions are building toward a service disruption. RainViewer tracks the cell's movement toward the city in real time.
- Does Delhi flood when it rains?
Yes — Minto Bridge is the city's most notorious chronic flood point, and ITO and surrounding central Delhi zones saw major waterlogging in a July 2025 event even when Minto Bridge itself stayed dry. The Yamuna crossed its evacuation mark of 206.34 m in July 2023, the highest since 1978, flooding parks, underpasses and hospitals. Avoid low-lying underpasses during a radar-confirmed heavy cell.
- When is the best time to visit Delhi to avoid rain?
October through May is Delhi's dry season, though it includes a severe pre-monsoon heatwave from April to June with heatwave days rising 35% between 2018 and 2019. The wettest window, late June through mid-September, carries over 80% of annual rainfall and the highest flood risk around Minto Bridge and the Yamuna. Visitors preferring calmer conditions should target October through March.
- Why does it rain in one part of Delhi but not another?
Delhi's urban heat island effect measurably intensifies its own rainfall, with studies showing 5 to 25% increases in summer rain concentrated downwind of the built-up city — meaning the city's own structure changes where storms form. The low Aravalli Ridge to the southwest channels local drainage without meaningfully blocking rain, concentrating runoff into specific corridors like Minto Bridge's 1 km catchment rather than spreading it evenly. A live radar view of a cell's exact track is the only way to see which corridor it's headed for.
- Is there a live rain radar for Delhi?
Yes — RainViewer's hyperlocal radar for Delhi draws data from the India Meteorological Department (IMD) via mausam.imd.gov.in and refreshes every 5 minutes. It shows a monsoon cell building over the city before it reaches ITO or Minto Bridge, rather than a static forecast icon. Coverage extends across the NCR to Gurugram, Noida and Ghaziabad on the same feed.
- Can I get a warning before rain hits Delhi?
Yes — RainViewer's rain alert notifies you when a storm cell is a set distance from a saved location, such as an office near ITO or a home close to the Yamuna floodplain. Setting an alert there gives commuters time to avoid Minto Bridge before it floods. The same alert works for any saved Delhi location, including IGI Airport.
Track Rain in Delhi in Real Time
Commuters through Minto Bridge need to know the exact minute a cell is building over its catchment, not just that rain is "expected" in Delhi today.
Delhi's own urban heat concentrates rain into specific corridors, so a cell can flood Minto Bridge or ITO before a citywide forecast even updates.
Your weather app says scattered showers in Delhi today. RainViewer's live hyperlocal radar shows it's already flooding Minto Bridge street by street while Dwarka stays dry — that's the call Delhi commuters make every monsoon before a cell builds overhead.
Track rain in Delhi — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
See the ITO and Minto Bridge catchment 2 hours ahead in 5-minute steps, enough lead time to choose a different route.
Rain alerts before arrival
Set an alert for an office near ITO or a home by the Yamuna floodplain and get notified before the cell arrives.
Direction arrows on the map
Direction arrows show monsoon cells building from the southwest before they reach central Delhi.
48 hours of radar history
Review the last 48 hours to see how the 11 July 2023 record downpour built up, cell by cell.
Multiple locations
Track Minto Bridge, ITO and the Yamuna floodplain at once, all on independent alerts.
RainViewer
