Live Rain Radar for Kanchanaburi
Monitor rain across Kanchanaburi's river valleys and mountain forests. Updated every 5 minutes.
Local Weather Context
Kanchanaburi is Thailand's third-largest province, stretching from the Central Plains deep into the Tenasserim Hills along the Myanmar border. The Kwai Yai and Kwai Noi rivers converge at Kanchanaburi city before flowing into the Mae Klong River. The rugged western mountains catch heavy monsoon rainfall that feeds the strategically important Vajiralongkorn (Khao Laem) and Srinagarind dams.
Seasons
Wet season (May–October)
The southwest monsoon delivers heavy rain, especially to western mountain areas receiving over 2,000 mm annually. Lowland areas around the city average 150–200 mm per month during peak monsoon. Flash flooding along the Kwai rivers and mountain streams can be sudden and dangerous.
Transition months (November, April)
November sees rapid drying as the monsoon retreats. April brings extreme heat in the river valleys, with temperatures sometimes reaching 42°C before pre-monsoon storms break the heat.
Dry season (December–March)
Comfortable temperatures and minimal rainfall. The cool season draws tourists to Erawan Falls, Hellfire Pass, and the River Kwai Bridge. Reservoir levels begin declining as outflow exceeds inflow.
NEW! Tap Anywhere to Inspect
2 Feb 2026One touch, and the rain at that exact spot explains itself—revealing intensity, precipitation type, cloud and air temperatures, and live national alerts, while making even the tiniest rain pockets easy to pinpoint and compare.
Who Needs Rain Radar Here
Dam operators
Vajiralongkorn and Srinagarind dams control water for western Thailand's power generation, irrigation, and flood prevention. Rainfall monitoring in the upstream watershed is critical for dam safety and release scheduling.
Adventure tourism operators
Rafting on the Kwai rivers, trekking in Erawan National Park, and waterfall visits all depend on weather conditions. Heavy upstream rain can make rivers dangerous hours before it rains locally.
Gem miners
Kanchanaburi's sapphire mining areas in Bo Phloi and surrounding districts suspend operations during heavy rain when open pits flood.
Cross-border logistics
The Phu Nam Ron border crossing with Myanmar and Highway 323 through the mountains require weather monitoring for safe passage.
Radar Coverage
RainViewer covers Kanchanaburi city and the river valleys well. Western mountain areas near the Myanmar border have variable coverage due to terrain, but storms moving east toward populated areas are tracked effectively. The wide zoom level shows weather patterns across the entire province.
What Our Users Say
“Kadang-kadang sedikit bersemangat dengan ramalan hujan, tetapi ia adalah tepat dan berguna untuk imej radar, dan aplikasi radar satu-satunya yang saya simpan dan tidak nyahpasang”
Duncan Stewart“Saya perlu ubah maklum balas saya sekali lagi ini masih merupakan aplikasi otak terbaik di kedai aplikasi isu yang saya hadapi adalah dengan telefon saya dan bukan aplikasi hebat ini satu perkara yang saya suka ialah widgetnya.”
Jim Tigs
Explore Radar Coverage
FAQ
Does radar cover Erawan National Park?
The park and surrounding areas have good coverage. Mountain terrain may create some shadows in deep valleys, but approaching storms are visible well in advance.
Can radar help predict river level changes?
Heavy rainfall shown on radar over the upper Kwai Yai and Kwai Noi watersheds indicates rising river levels in Kanchanaburi city, typically 4–8 hours later depending on intensity.
Why is the zoom level wider for Kanchanaburi?
Kanchanaburi province is very large, and weather affecting the city often develops in the western mountains. The wider view lets you see approaching storm systems from further away.
See mountain rain before it reaches the river
Kanchanaburi's rain starts in the Tenasserim Hills and arrives at the valley without warning. The map updates every 5 minutes — often 2–5 minutes faster than other apps — so by the time a cell is hitting the upper Kwai catchment, you've already seen it before the water starts rising at the trails or the raft houses.
Rain Viewer Essential gives you:
- A 2-hour rain forecast in 5-minute slices — not hourly blocks, so you can see the exact window when the mountain storm clears and the Erawan upper tiers or Death Railway route are safe again
- Rain alerts that trigger before rain arrives — set the Erawan upper catchment, your River Kwai raft house, or the Route 323 mountain section and get notified while you can still change your plans
- Direction arrows on the map — so even when the animation is unclear, you can see whether the cell is tracking down the Kwai Noi valley toward the tourist strip or pushing east toward Suphan Buri
- 48 hours of radar history — see how yesterday's mountain storm moved through the Tenasserim Hills and recognise the same pattern building upstream today
- Multiple locations — track rain at the Erawan upper catchment, the Bridge on the River Kwai, and your Route 323 return drive at the same time
A 7-day forecast tells you August will be wet. Rain Viewer tells you whether the upper catchment is clear enough to hike to tier seven or turn back now.
Track rain in Kanchanaburi — free
Upgrade to Essential for alerts, forecasts, and full radar history
