Live Rain Radar for Nakhon Ratchasima
Track rain across Korat and the Isan plateau in real time. Updated every 5 minutes with high-resolution radar data.
Local Weather Context
Nakhon Ratchasima (Korat), the gateway to Isan, is situated on Thailand’s northeastern plateau at approximately 200 m elevation. The Dong Phaya Yen mountain range to the west creates a rain shadow effect, but when monsoon moisture pushes through the passes, storms can be intense. The flat terrain allows storm cells to travel long distances with minimal disruption.
Seasons
Wet season (May–October)
The southwest monsoon brings the majority of annual rainfall. August–September are the wettest months, averaging 200–250 mm. Thunderstorms often develop in the afternoon over the plateau, sometimes producing damaging winds and hail.
Transition months (November, April)
November sees the last of the monsoon rains fading. April brings rising heat and occasional pre-monsoon storms that can be severe, with strong wind gusts.
Dry season (December–March)
Cool, dry air from the north keeps rainfall to a minimum — under 20 mm per month. Farmers face water shortages as reservoirs drop. The cool season (December–January) can bring overnight temperatures below 15°C.
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
Rice and cassava farmers
Korat’s agricultural economy relies on the monsoon rains. Farmers use radar to time the planting, harvesting, and drying of crops. Unexpected rain during harvest season can ruin sun-dried cassava chips laid out on the roads.
Military base operations
The region is home to major military installations where outdoor training exercises require precise weather monitoring.
Highway commuters
Mittraphap Road (Highway 2), Thailand’s main northeastern corridor, carries heavy lorry and car traffic. Rain reduces visibility and leads to accidents — radar helps drivers plan their departure times.
University students
Students at Suranaree University and Korat Rajabhat University, many of whom commute by motorbike, check the radar to avoid riding through storms.
Radar Coverage
RainViewer offers robust coverage across the Korat plateau, stretching to Khao Yai National Park in the west, Buriram in the east, and Chaiyaphum in the north. The flat landscape enables excellent radar propagation with minimal obstruction.
What Our Users Say
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Explore Radar Coverage
FAQ
Does the flat Isan terrain help radar accuracy?
Yes. The Korat plateau's flat topography means fewer radar shadows and obstructions compared to mountainous regions, providing reliable coverage across the entire area.
Can radar help farmers protect drying crops?
Radar shows approaching rain 30–60 minutes before arrival, giving farmers time to cover cassava, rice, or other crops spread out for sun drying.
Are Korat's hailstorms visible on radar?
Intense storm cells that produce hail show as very strong radar echoes. If you see bright red or purple returns approaching, seek shelter immediately.
See the storm forming before it floods your route
Korat’s rain is localised, plateau-shaped, and impossible to predict from a weekly forecast. The map updates every 5 minutes — often 2–5 minutes faster than other apps — so by the time a cell is building over the hills to the southwest, you’ve already spotted it heading towards the city.
Rain Viewer Essential gives you:
- A 2-hour rain forecast in 5-minute increments — not hourly blocks, so you can pinpoint the exact window when the storm clears Mittraphap Road and the convoy can move safely
- Rain alerts that trigger before rain arrives — set your farm, factory, freight depot, or school pick-up point 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 into the city centre or pushing northeast towards Buri Ram
- 48 hours of radar history — see how yesterday’s September storm moved across the plateau and recognise the same pattern forming this afternoon
- Multiple locations — track rain at your Highway 2 departure point, the Korat city centre, and your fields in the eastern districts at the same time
A 7-day forecast tells you September will be stormy. Rain Viewer tells you whether to release the convoy now or wait 40 minutes.
Track rain in Nakhon Ratchasima — free
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