Patong Bay and the hills behind the town (file photo).
Patong woke up this morning to mud. In the early hours of Monday, October 26, torrential overnight rain sent runoff, rocks and boulders pouring off Khao 50 Pi — the steep hill behind the town — and down into the Nanai neighbourhood, damaging homes, shops and vehicles. By late morning the water had largely receded, clean-up crews were clearing the streets, and — the fact that matters most — officials were reporting no casualties. Here is what happened, why Patong's hills make this a recurring rainy-season event rather than a freak one, and what to do while more rain is forecast through Wednesday.
What Happened Overnight
The damaging flow came at around 3:05 AM, in a window of intense rain roughly between 2:00 and 4:00 AM. Water running off Khao 50 Pi carried mud, rocks and boulders down into Ban Na Nai, the residential neighbourhood on Patong's inland side, in Kathu district. The worst of it hit Soi Nanai 8 and Soi Nanai 5, the area around Makro Nanai, and Phang Muang Sai Kor Road.
The Bangkok Post and Thai PBS reported homes, a hotel and shops damaged along the Nanai roads. Shopfront windows were shattered by the force of the water. Cars and motorcycles were submerged, and some were swept by the current. At one hotel, a gate was broken, mud got inside, and furniture and appliances were damaged. Some local residents, quoted in Thai reports, called it among the most serious flooding they had seen in 50 years — a measure of how hard the Nanai sois were hit, even in a town used to heavy rain.
Deputy Provincial Governor Romdon Hayiawae told the Associated Press that more than 100 households were affected, and that preliminary assessments reported no deaths and no casualties. Patong was the worst-hit area, but it was not the only one: flooding was reported across all three of Phuket's districts — Thalang, Mueang and Kathu — over Sunday and Monday. A section of Thepkrasattri Road near the Thai Watsadu store in Si Sunthon became impassable to small vehicles, and water also affected Phra Phuket Kaew Road and areas of Rawai, Chalong and Choeng Thale.
The response began while it was still dark. The Department of Disaster Prevention and Mitigation (DDPM) sent Cell Broadcast alerts to phones three times overnight — at 00:37, 02:54 and 08:30 — warning of flash floods and landslides. Patong authorities opened temporary shelters at the Patong Municipal Office, Wat Suwankeereewong School and Patong Bay Hill Hotel. Municipal and provincial crews moved in with bulldozers and other heavy equipment to clear mud, rocks and debris from the roads and keep drainage canals open. By late morning on Monday the floodwater had largely receded, leaving mud behind; some low-lying roads were still flooded, and officials advised drivers of small vehicles to avoid the affected routes.
The Numbers
Rainfall totals for the 24 hours to early Monday, reported by Phuket's water-monitoring network and carried by The Nation, show how much water fell on ground that was already saturated:
- Ban Na Yai: 117 mm
- Highest total recorded in Phuket: up to 142.8 mm (reported by the Bangkok Post)
- Bang Neaw Dum Reservoir: 94.4 mm
- Rawai: 93.2 mm
- Bang Wad Dam: 88.2 mm
For scale, 142.8 mm is roughly a fortnight's worth of rain for many cities, delivered in a single day and night. On dry ground, much of that would soak away. On hillsides that have been rained on for weeks near the end of a long monsoon, it runs off — fast, and carrying whatever it can pick up on the way down.
Why Patong's Hills Do This
To understand last night, look at a map — or better, stand on Patong Beach and turn around. The town sits in a bowl. The beach and the sea are on one side; on every other side, steep hills rise directly behind the streets. The town centre is, in effect, the floor of an amphitheatre, and Nanai sits close to the slope of one of its steepest walls, Khao 50 Pi.
That geography has a predictable result in monsoon rain. Hillsides absorb water like a sponge until they can't. Once the soil is saturated — which, by late October, after months of rainy season, it usually is — additional heavy rain has nowhere to go. It sheets off the surface, concentrates in gullies and waterways, picks up soil, stones and debris, and arrives at the bottom with real force. Hillside landslides and mudslides are a common, recurring part of Patong's rainy season for exactly this reason: the same slopes that give the town its green backdrop are the ones that shed water and mud onto the streets beneath them.
Local people know the pattern and the places. Khao 50 Pi above Nanai is a known slide spot. So are the Kalim hill road north of the beach and the Patong hill road over to Kathu — routes where heavy rain regularly brings down mud and debris and where traffic is disrupted when it does. None of this makes a night like last night normal or acceptable for the families cleaning mud out of their homes this morning. It does mean it is a pattern with causes that can be watched, warned about and prepared for — not a bolt from the blue.
More Rain Through Wednesday
This is not over yet. In its October 26 advisory, the Thai Meteorological Department warned that heavy to very heavy rain will continue across southern Thailand through Wednesday, October 28, with a risk of flash floods, overflowing waterways and landslides — especially near foothills, waterways and low-lying areas. For the sea, waves in the Andaman and the Gulf can exceed 2 metres in thunderstorm areas, and boats are advised to avoid storm areas.
That wording — "especially near foothills" — is the part for Patong to hear. The hillsides above Nanai have just demonstrated what they do when saturated, and they will be more saturated, not less, after two more days of rain. The DDPM's overnight Cell Broadcast alerts are worth keeping switched on and worth heeding: they were sent three times last night because conditions kept meeting the threshold.
What to Do If You're in Patong Now
Most of this is common sense, but common sense works better written down before you need it:
- Avoid foothill roads during and just after heavy rain. The streets at the base of steep slopes — around Nanai and Khao 50 Pi above all — are where runoff and debris arrive first. If a soi is being avoided by everyone who lives on it, copy them.
- Never try to cross fast-moving or deep water, on foot or on a bike or in a car. Floodwater hides open drains and washed-out road surfaces, and a current that looks manageable can take a motorbike — or a person — off balance. Wait it out; Patong floods typically drain within hours.
- Move vehicles and belongings to higher ground when heavy rain is forecast overnight, especially if you are staying or living in a low-lying soi near the hills. Motorcycles first — they are the easiest to move and the easiest for water to ruin.
- Take the phone alerts seriously. If a Cell Broadcast warning arrives at 2 AM, it was not sent lightly. Keep your phone charged and within hearing overnight during this spell.
- Know the help numbers. Patong Municipality's Disaster Prevention and Mitigation division answers 24 hours on 076-342600. The national disaster hotline is 1784, and assistance can also be requested through LINE at @1784DPM. Temporary shelter is available at the Patong Municipal Office, Wat Suwankeereewong School and Patong Bay Hill Hotel.
- After the water drops, go gently. Roads under the mud can be damaged, drains can be open, and debris takes time to clear. Crews were working through Monday; give them room.
If your home or business took damage, the municipal assistance channels above are the place to register it — provincial officials have said damage surveys and relief are being organised, and the municipality ran an assistance centre for exactly this purpose earlier this month.
The Longer Pattern
Last night was the second time this month that Patong has dealt with flooding and landslides. On the night of October 6, heavy rain and a high tide brought flooding and slides to parts of the municipality; the mayor inspected affected areas the following day, crews distributed sandbags and cleared drains, and an assistance centre was set up for residents. Two events in twenty days, in the same town, in the same way, tells the story plainly: this is what the end of the monsoon does to a town built in a bowl.
None of that diminishes what Nanai residents are dealing with today — mud in the house, damaged cars and bikes, a shop to clean and reopen. It does put the night in proportion. Phuket's rainy season is drawing toward its end, the damage — while serious for those affected — was met with warnings that worked, shelters that opened, crews that were out before dawn, and no loss of life. The hills will do this again some future October; the measure of the town is how ready it is when they do. Last night, by the early reports, Patong was readier than the weather was bad.
A note from us: at Patong Harbor View, down in the quiet south end of Patong, we're all good — the condos, our guests and our team are all fine. Our thoughts are with the families over in Nanai who are cleaning mud out of their homes today. And if the flooding has left you needing an apartment, even just while yours gets sorted out, get in touch — reach out to us at +66 80 052 8082 and we'll do our best to help.
Sources: Bangkok Post, Associated Press, Thai PBS, The Nation, Thai Meteorological Department and the Department of Disaster Prevention and Mitigation (DDPM), reporting of October 26, 2026. Rainfall figures are as reported by Phuket water-monitoring via The Nation and the Bangkok Post; the situation may change as assessments continue.
About Jay & Scott — Jay and Scott are travelers and writers living in Thailand. We enjoy traveling around Thailand — the food, the beaches, the small towns — and writing about it as we go. Back home in Phuket we run Patong Harbor View Condominium, our long-stay condo rentals in Patong. Come stay a while: www.phvcondo.com.
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