Live Rain Radar for Prachuap Khiri Khan
Monitor rain across Hua Hin, Prachuap, and the narrow isthmus coast. Updates every 5 minutes.
Local Weather Context
Prachuap Khiri Khan province sits at Thailand’s narrowest point — just 13 km between the Gulf of Thailand and the Myanmar border. This unique geography means weather systems from both the Gulf and the Andaman side can influence the province. Hua Hin, the royal beach resort, and Prachuap city are located directly on the Gulf coast, with mountains rising steeply behind them.
Seasons
Wet season (May–November)
Both monsoons impact this narrow isthmus. The south-west monsoon (May–October) brings rain from the Andaman side over the mountains, while the north-east monsoon onset (October–November) adds Gulf moisture. September–November can see over 200 mm per month.
Transition months (December, April)
December sees the monsoon easing off. April brings pre-monsoon heat, with occasional afternoon thunderstorms developing over the mountains.
Dry season (January–March)
Pleasant weather with minimal rainfall — less than 30 mm per month. Hua Hin enjoys its peak season with clear skies and gentle breezes from the Gulf.
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
Hua Hin tourists and residents
The resort town’s outdoor lifestyle — golf courses, beach clubs, night markets — relies on dry weather windows. Radar helps plan activities around tropical showers.
Pineapple and coconut farmers
Prachuap Khiri Khan is Thailand’s largest pineapple-producing province. Farmers use radar to time harvesting and transport of this rain-sensitive crop.
Fishing communities
Small-scale fishermen along the coast from Hua Hin to Bang Saphan monitor radar to avoid squalls while at sea.
Royal Thai Air Force
Wing 5 at Prachuap air base requires accurate weather monitoring for flight operations along the coast.
Radar Coverage
Rain Viewer covers the entire narrow province, from Hua Hin in the north to Bang Saphan in the south. Gulf of Thailand coverage shows approaching storms, and the narrow width of the province means weather from the Andaman side can also be tracked as it crosses the mountains.
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
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FAQ
Why does Prachuap Khiri Khan get rain from both sides?
The province is just 13 km wide at its narrowest point. Weather systems from both the Gulf of Thailand (east) and the Andaman Sea (west, crossing Myanmar) can bring rain here.
Is radar reliable for Hua Hin's weather?
Yes. Radar offers excellent coastal coverage, displaying Gulf storms approaching the shore well in advance. Mountain-generated storms from the west are also visible as they cross the ranges.
Can I track weather for a golf game in Hua Hin?
Radar is ideal for this. Check the animation 30 minutes before tee time to see if any rain cells are heading towards the course.
See rain in Prachuap Khiri Khan before it floods Hua Hin
Prachuap’s rain comes from two directions and doesn’t follow Bangkok’s weekend forecast. The map updates every 5 minutes — often 2–5 minutes faster than other apps — so by the time a Gulf cell is forming off Hua Hin, you’ve already spotted it before leaving the city.
Rain Viewer Essential gives you:
- A 2-hour rain forecast in 5-minute intervals — not hourly blocks, so you can see the precise window when the storm clears the main street and the beach or cave trail becomes accessible again
- Rain alerts that trigger before rain arrives — set Hua Hin beach, Khao Sam Roi Yot, or your Highway 4 departure point and get notified while you can still adjust your plans
- Direction arrows on the map — so even when the animation isn’t clear, you can see whether the Gulf cell is tracking towards Hua Hin or moving south towards Chumphon
- 48 hours of radar history — see how last weekend’s storm moved down the coast and recognise the same pattern forming this Saturday morning
- Multiple locations — track rain at your Bangkok starting point, Hua Hin beach, and Khao Sam Roi Yot all at once
A 7-day forecast tells you October will be unpredictable. Rain Viewer tells you whether the drive south is worth it today or better left until Sunday.
Track rain in Prachuap Khiri Khan — free
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