Live Rain Radar for Bangkok
Track rain across Bangkok and the surrounding provinces in real time. Updated every 5 minutes with high-resolution radar data.
Local Weather Context
Bangkok lies in the Chao Phraya River delta, one of Southeast Asia’s most flood-prone urban regions. The city’s low elevation and dense canal network mean even moderate rainfall can lead to street-level flooding within minutes. Real-time radar enables residents and commuters to anticipate waterlogged roads before they become impassable.
Seasons
Wet season (May–October)
The southwest monsoon brings intense afternoon thunderstorms, often beginning around 14:00–16:00. Monthly rainfall peaks above 300 mm in September. Flash flooding on Sukhumvit, Lat Phrao, and other low-lying roads is common after heavy downpours.
Transition months (November, April)
Sporadic showers with decreasing frequency. November marks the retreat of the monsoon; April sees pre-monsoon heat punctuated by isolated thunderstorms.
Dry season (December–March)
Minimal rainfall, typically under 30 mm per month. Clear skies prevail, though occasional cold-front passages can bring brief showers in January.
NEW! Tap Anywhere to Inspect
2 Feb 2026One tap, and the rain at that precise spot tells its own story—showing intensity, precipitation type, cloud and air temperatures, and live national alerts, while making even the smallest rain pockets easy to identify and compare.
Who Needs Rain Radar Here
Daily commuters
Bangkok’s traffic slows dramatically in the rain. Checking the radar before leaving the office can save you an hour stuck at flooded junctions along Ratchadaphisek or Phaholyothin.
Delivery riders
Food delivery and logistics riders rely on short-term radar forecasts to time their routes and avoid the worst downpours.
Event planners
Outdoor markets, rooftop venues, and temple festivals across the city depend on radar to make last-minute weather decisions.
Flood-prone residents
Residents in areas such as Don Mueang, Bang Khen, and eastern suburbs near canals use radar to prepare for rising water before official warnings are issued.
Radar Coverage
Rain Viewer combines data from the Thai Meteorological Department’s radar network, providing comprehensive coverage across Bangkok and all surrounding provinces, including Nonthaburi, Pathum Thani, Samut Prakan, and Nakhon Pathom. Updates arrive every 5 minutes, with resolution sufficient to distinguish individual storm cells moving across the metropolitan area.
What Our Users Say
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“A little overenthusiastic at times with rain predictions, but it's accurate and spot on for radar images, and it's the one radar app I've kept and not uninstalled”
Duncan Stewart -
I must update my feedback once again – this is still the best brain app in the app store. The issue I was experiencing was with my phone, not this top-tier app. One feature I particularly like is the widgets.
Jim Tigs
Explore Radar Coverage
FAQ
How often is the Bangkok radar updated?
Radar data updates every 5 minutes, providing you with near real-time tracking of rain cells moving across the city.
Can I see if rain is heading toward my BTS station?
Yes. Zoom in to your area on the map and use the animation to see which direction rain cells are moving and when they’ll arrive.
Does the radar show flooding?
Radar displays rainfall intensity, not floodwater directly. However, heavy radar echoes over low-lying areas of Bangkok are a strong indication of imminent street flooding.
Is radar accurate for Bangkok's sudden storms?
Radar detects storms as they develop. Bangkok’s convective storms can form rapidly, so checking the radar every 15–30 minutes during the monsoon season gives the best advance warning.
See the storm forming before it reaches your street
Bangkok’s rain is fast, localised, and impossible to predict from a weekly forecast. The map updates every 5 minutes — often 2–5 minutes quicker than other apps — so by the time a cell is 15 minutes from your street, you’ve already spotted it approaching.
Rain Viewer Essential gives you:
- A 2-hour rain forecast in 5-minute intervals — not hourly blocks, so you can pinpoint the exact window when the storm passes and the soi is clear again
- Rain alerts that trigger before the rain arrives — set your home, office, or school pick-up point and get notified while you can still change your plans
- Direction arrows on the map — so even if the animation isn’t clear, you can see whether the cell is moving towards you or away
- 48 hours of radar history — see how yesterday’s storm moved through the city and spot the same pattern forming today
- Multiple locations — track rain at your home, your children’s school, and your office at the same time
A 7-day forecast tells you September will be wet. Rain Viewer tells you whether to leave now or wait 20 minutes.
Upgrade to Essential for alerts, forecasts, and full radar history
