Thailand Airbnb Performance by Area: September 2026

Estimated September revenue for the median listing runs from $1,379 in Surin/Bang Tao to $3,666 in Lamai, a spread of 2.7 times. Koh Phangan booked the largest share of September nights (73%), while Choeng Mon asks the most per night ($233): read across the rows, not down one column.

An area figure is a starting filter, never a decision on a specific property. Even in the strongest areas the best-run listings clear far more than it, and the weakest far less. Brixfox computes per-property yield on this same calendar data so an area read like this becomes a specific, underwritable decision.

On the same listings, hosts ask these multiples of their September rate — November stays: Islands 1.02, Koh Samui 0.99, Phuket 1.73; January stays: Islands 1.60, Koh Samui 1.53, Phuket 2.64. Asking rates show how hosts price the months ahead, not how full those months get. Our night-by-night archive began on 22 July 2026, so the complete months it covers run from August 2026 to September 2026. Underwrite on all twelve months, never on September × 12.

Brixfox tracks 1.8M+ short-term-rental listings across 50+ countries and territories. For the listings whose Airbnb calendars it reads, it keeps each night’s final booked-or-open state in a night-by-night archive that began on 22 July 2026. This post covers September 2026 and the listings we track in Thailand (Phuket, Koh Samui and Islands) with a full September calendar (25 or more nights observed). A listing counts as performing if it booked at least 10% of the month’s nights; occupancy and nightly rate are medians across performing listings, and estimated revenue is the median of each performing listing’s own estimate — its occupancy × its advertised nightly rate × 30 nights — which is not the two medians multiplied together and usually sits a little below that product. Nightly rates are what hosts advertise for September stays — Airbnb does not publish what a night actually sold for. A night counts as booked when its calendar was closed on a reading taken at least a day before the night and ahead of any advance notice the host requires. Airbnb closes a night on its own date, and every night inside a host’s notice period of up to seven days, whether or not it sold, so those readings are not counted, and neither is a booking made that late. Some owner-blocked nights remain in the figures; calendars closed almost end to end with no detected booking are left out as unverifiable, and so are listings our data engine flags as likely owner-blocked. An area needs at least 100 performing listings, 50 of them with an advertised rate, to appear. The seasonality ratios compare the same listings’ advertised rates for those months (the median of each listing’s ratio). Informational, not investment advice.