Hotels Across Samui Facing Water Shortage Due to Drought

Peak Season Puts Hotel Water Supplies Under Pressure

Hotels across Koh Samui are confronting mounting operational challenges as a severe drought combines with strong peak-season tourism demand to place the island’s limited water supplies under intense pressure. With resorts maintaining robust occupancy levels during unique peak season for Samui that is between June and August, and visitor numbers continuing to rise, properties are increasingly having to secure alternative water supplies to keep guestrooms, kitchens, swimming pools, laundries and other essential facilities operating normally.

The shortage comes as prolonged dry weather linked to the El Niño phenomenon reduces raw water availability across the island. Demand is estimated at approximately 34,000 cubic meters per day, while pipelines from the Surat Thani mainland can provide only around 16,000 cubic meters. This Thailand Hotel News report highlights that for hotels across Samui, the water shortage serve as an increasingly serious operational problem, as maintaining reliable water supplies becomes both more complicated and substantially more expensive.

Hotels Turn to Costly Private Water Supplies

Some hotels have been purchasing groundwater from private suppliers at approximately THB150–300 per cubic meter, compared with around THB20–30 for normal tap water. The dramatic cost difference is creating additional pressure on operating margins, particularly for independent hotels and small and medium-sized properties.

Many operators are reportedly absorbing these additional expenses rather than passing them directly to guests. Reliable water remains essential for housekeeping, linen washing, food and beverage operations, staff facilities and guest bathrooms, making shortages particularly difficult for hotels to manage without affecting service standards.

Properties at higher elevations may face additional difficulties because of intermittent piped-water availability. Larger resorts with substantial daily consumption must also carefully manage storage tanks and deliveries to avoid disruption during periods when municipal supplies are unavailable.

Rotating Distribution Adds Operational Complexity

The Provincial Waterworks Authority has introduced rotating water distribution across three zones, requiring hotels to plan consumption and storage around designated supply days. Operators and residents have been advised to conserve water and maintain adequate reserves whenever supplies become available.

Authorities are also coordinating additional mainland supplies, repairing reverse-osmosis water production facilities and considering artificial rainmaking when weather conditions permit.

Despite the disruption, tourism industry representatives say there have been no significant booking cancellations attributed to the shortage. However, the situation illustrates the widening gap between Samui’s tourism expansion and the infrastructure required to support it.

Tourism Growth Raises Long-Term Water Concerns

Koh Samui has at least 620 licensed hotels offering approximately 25,000 rooms, excluding numerous villas and homestays. During peak periods, its registered population of roughly 70,000 is supplemented by hundreds of thousands of workers and visitors, placing enormous pressure on utilities.

With additional hotels, property developments, restaurants and airport expansion expected, tourism leaders are calling for investment in raw-water storage, reverse-osmosis facilities and additional underwater pipelines.

Samui’s strong forward bookings demonstrate the resilience of its hotel market, but dependable water infrastructure is becoming critical to protecting service standards, controlling hotel operating costs and supporting sustainable tourism growth. Without substantial long-term investment, recurring shortages could increasingly disrupt hotel operations as visitor demand expands.