Flooding at Home in Thailand: Preparing a Condo or House, Alerts and Insurance

Published 19 October 2026 · By the Visit-Thailand editorial team · Editor: Terje Moy

Floods in Thailand usually come with warning: heavy rain is forecast, rivers rise and streets fill over hours rather than seconds. If you prepare before the wet season peaks, keep valuables and documents high, know how to switch off power and gas safely, and save the disaster hotline 1784, most floods become an expensive nuisance rather than a disaster.

Flooding is part of life in many Thai cities and provinces. In late September 2026, heavy rain flooded parts of Bangkok and nearby provinces, and the government declared special public holidays on 28 and 29 September in Bangkok, Nonthaburi, Pathum Thani and Samut Prakan. Hat Yai in the south has a long record of floods in November. This page is about the home: a rented condo, a townhouse or a house. What a flood means for a holiday, and which months carry the most risk for travel, is covered in our guide to the rainy season in Thailand.

Know your risk before the wet season

Flood risk in Thailand depends on where you live far more than on the city's name. A ground-floor unit near a canal or in a low soi (side street) can take water every heavy storm, while a tenth-floor condo in the same district never sees it, though its car park and lifts might. Ask about this before you rent, not in September.

• Ask the landlord, the condo's juristic office (building management) and the neighbors whether the building, the car park or the street flooded in recent years, and how deep.
• Look for clues: water stains on walls, raised door sills, sandbags stored in a corner, electrical sockets placed unusually high.
• Check where the building's electrical room, water pumps and generator are. In a basement they can fail early and take the lifts and water supply with them.
• Find out whether the building has a LINE group or notice board for residents. In a condo, that is often where flood updates and car-park instructions appear first.

Our guide to renting a condo or house in Thailand covers the lease; ask for flood damage and repairs to be mentioned in it if the area is known for flooding.

Warnings: where to watch and which numbers to save

The Thai Meteorological Department issues heavy-rain and storm warnings on its website, and its hotline is 1182. The Department of Disaster Prevention and Mitigation runs the 1784 disaster hotline. Both numbers, with the Bangkok city hotline 1555 and the ambulance number 1669, were listed by the Tourism Authority of Thailand in its visitor updates during the Bangkok floods of September 2026. Our page on emergency numbers in Thailand has the full list.

Warnings are often in Thai first. Follow your condo's announcements, ask a Thai-speaking neighbor or colleague to tell you when a warning covers your district, and watch English-language news and TAT's visitor updates. The UK Foreign Office's travel advice for Thailand also carried a severe-flooding notice in late September 2026, which shows how quickly official advice changes during an event.

A flood kit and the papers to keep dry

Prepare a bag you can grab in minutes and keep it on a high shelf. Power, water and shops can all be cut for a few days in a serious flood.

• Passport, visa pages, work permit, lease, and the deposit receipt for any gas cylinder, in a waterproof zip bag. Keep photos of them in cloud storage as well.
• Medicines for at least a week, with prescriptions.
• Drinking water, food that needs no cooking, a torch, spare batteries and a charged power bank.
• Cash in small notes, since card machines and ATMs may stop working.
• Rubber boots and gloves, and waterproof plasters for cuts.
• Your insurer's phone number, your embassy's number and your landlord's number written on paper.

When water is rising: what to move up

Start early. Lifting things takes longer than most people expect, especially in a house with heavy furniture.

1. Move documents, electronics, chargers and medicines upstairs or onto high shelves.
2. Raise furniture and appliances that cannot be moved onto bricks or blocks, if you have them. Unplug them first.
3. Put rugs, mattresses and clothes in plastic bags and move them up.
4. Move chemicals, insecticides and cleaning products above the expected water level, so they do not mix into the floodwater.
5. Block floor drains and toilets on the ground floor with a weighted bag if sewage is backing up, and close doors and windows.
6. Bring in or tie down anything outside that can float away, such as plant pots, gas cylinders and furniture.

Sandbags help with shallow water and short floods. Ask your district office, village head or juristic office whether sandbags are handed out in your area before an expected flood.

Electricity: the main breaker, only if it is safe

Water and electricity are the most dangerous mix in a flooded home. If water is about to reach sockets or appliances, switch off the power at the main breaker, but only if you can reach it while standing on a dry floor, with dry hands, and without touching water. If the breaker is in a room that is already flooded, do not go in. Leave the house and call the electricity authority.

The Provincial Electricity Authority (PEA) tells people never to approach broken power lines or fallen poles, and to report them on 1129; in Bangkok, Nonthaburi and Samut Prakan the Metropolitan Electricity Authority's number is 1130. After the water goes down, do not switch the power back on until a licensed electrician has checked the wiring and the appliances that were under water. Do not try to dry or repair wiring yourself. The instant shower water heater in the bathroom deserves particular care after a flood, because its safety breaker may have been damaged. For outages in general, see our guide to power cuts in Thailand.

Gas, water and the building's systems

Close the valve on your LPG cylinder before you leave the house or move upstairs, and keep the cylinder upright and secured so that it cannot float away; our guide to cooking gas at home covers leaks and the supplier's role. Fill clean bottles and buckets with tap water before the flood peaks, because water supply often depends on electric pumps.

In a condo, lifts may be switched off if the water reaches the basement. Plan for stairs, especially if anyone in the household has difficulty walking, and do not use a lift during a flood.

Cars and motorbikes

A vehicle is often the most expensive thing a household loses in a flood. Move it before the water arrives, to the upper levels of the car park if your building allows it, or to higher ground nearby. Ask the juristic office in advance where residents may park during a flood, because space fills quickly.

Do not drive or ride through floodwater you cannot see the bottom of. Water hides open drains and potholes, and a car engine that takes in water can be destroyed. drivinginthailand.com explains what to do on the road in its guide to the rainy season and flooded roads. If your car or motorbike has been under water, do not start it; call your insurer and a mechanic first.

Insurance: check what your policy covers before the season

We could not find an official rule from Thailand's insurance regulator on what home, contents or motor policies must cover in a flood, and policies differ. Read your own policy, or ask your insurer in writing, these questions before the wet season:

• Is flood named as a covered risk for the building, for your contents, or for both?
• Does your motor policy cover flood damage to the car or motorbike, and does it matter where it was parked?
• Is there a separate limit or excess (deductible) for natural disasters?
• What evidence do you need for a claim: photos, receipts, a report from the village head or district office?

As a tenant, remember that the owner's building insurance, if any, protects the owner's property, not your belongings. A travel insurance policy may cover a short-term visitor's belongings and trip disruption, but it is not home insurance. Before you throw anything away after a flood, photograph the damage, the water line on the wall and every damaged item.

Floodwater and health

Floodwater carries sewage, chemicals and animal urine. The US Centers for Disease Control and Prevention (CDC) has noted increased cases of leptospirosis in Thailand and advises avoiding wading in water that may contain animal urine, covering cuts with waterproof dressings and wearing waterproof boots; our page on leptospirosis and melioidosis explains the symptoms and when to see a doctor. Snakes and other animals also move into dry places in a flood, so look before you reach into a cupboard or a pile of sandbags, and read our page on a snake in your house if one turns up.

Cleaning up after the water goes down

Wear boots and gloves for the whole clean-up. Throw away food, drinks and medicines that touched floodwater, and do not drink tap water until the local authority or the building says it is safe. Open windows, wash hard surfaces with detergent and clean water, and dry the home as fast as you can with fans and air conditioning once a licensed electrician has said the power is safe.

Mattresses, carpets, plasterboard and particle-board furniture that were soaked usually have to go. Mold starts within days in Thai heat; our guide to mold and humidity at home covers drying out a flat and preventing it. In a rental, report the damage to the owner in writing with photos and agree who repairs what before work starts.

Frequently asked questions

What number do I call during a flood in Thailand?

The Department of Disaster Prevention and Mitigation hotline is 1784. Call 1669 for an ambulance and 191 for the police in an emergency. In Bangkok the city hotline is 1555, and the Thai Meteorological Department's weather line is 1182.

Should I switch off the electricity when my home floods?

Switch off at the main breaker only if you can reach it from a dry place without touching water. If the breaker is already in water, leave the house and call PEA on 1129 or MEA on 1130. Have an electrician check everything before the power goes back on.

Does insurance in Thailand cover flood damage?

It depends on the policy. Some home, contents and motor policies include flood and some do not, or set separate limits for natural disasters. Ask your insurer in writing before the rainy season and keep photos of any damage.

When is flood season in Thailand?

Most of the country's serious floods come late in the rainy season, in September and October, when the ground is saturated. In the south, Hat Yai's flood risk peaks in November, when the northeast monsoon brings heavy rain to the Gulf side.

Is Hat Yai prone to flooding?

Yes. Hat Yai lies in a low basin and has flooded badly several times, most recently in November 2025. Our Hat Yai city guide explains why November matters there.

Sources

• Tourism Authority of Thailand – Weather and travel conditions in Bangkok and surrounding areas: visitor information (September 2026) (checked October 2026)
• Tourism Authority of Thailand – Special public holidays on 28–29 September 2026 (checked October 2026)
• UK FCDO – Thailand travel advice: warnings and insurance (checked October 2026)
• Provincial Electricity Authority – PEA Contact Center 1129 (checked October 2026)
• US CDC – Thailand traveler view (leptospirosis notice) (checked October 2026)
• PEA Safe Save Thai – Electrical hazards and safety advice (checked October 2026)