Samui can be a ฿20,000-a-month bungalow life or a ฿120,000 sea-view-villa life — the gap is almost entirely rent and air-conditioning. It is an island, so anything imported costs more than the mainland, and electricity is the cost that quietly balloons in the hot months. Here is the honest, line-by-line budget with real ฿ ranges.
*Family figure excludes international-school fees — budget roughly ฿189,000–508,000 per child per year on top; see our Samui schools guide. All numbers are 2026 market estimates.
These are full living costs — rent, food, utilities, transport, insurance and lifestyle — but not international-school fees or one-off set-up costs (deposits, a scooter, flights, furnishing). Public sources (Numbeo, ExpatDen, Expatistan, nomads.com) disagree by 10–30%, so we publish ranges rather than false precision. A single person living comfortably lands around ฿50,000–66,000 a month; budget travellers and long-stay nomads get by on far less if they rent local and eat Thai.
| Household | Lean / local | Comfortable | Family of four* |
|---|---|---|---|
| Single person | ฿25,000–35,000 | ฿50,000–66,000 | — |
| Couple | ฿40,000–55,000 | ฿65,000–95,000 | — |
| Family of four* | ฿60,000–80,000 | ฿80,000–130,000 | ฿130,000–180,000+ |
*Excludes international-school fees of roughly ฿189,000–508,000 per child per year — often the single biggest line in a family budget.
A worked monthly breakdown for one person across three styles of living. The scooter is the default vehicle here — there is no metro and no real bus network — so transport is cheap. The line that surprises newcomers is electricity: run the aircon hard through April–May and a ฿1,500 bill becomes ฿5,000+.
| Line item | Lean | Comfortable | Premium |
|---|---|---|---|
| Rent (1 person) | ฿8,000–13,000 | ฿15,000–25,000 | ฿30,000–60,000+ |
| Food & eating out | ฿8,000–12,000 | ฿15,000–25,000 | ฿30,000–45,000 |
| Electricity / aircon | ฿1,500–3,000 | ฿3,000–6,500 | ฿6,500–10,000 |
| Water + internet (fibre) | ฿800–1,500 | ฿1,200–2,000 | ฿1,500–2,500 |
| Transport (scooter) | ฿2,500–3,500 | ฿3,000–4,500 | ฿15,000–20,000 (car) |
| Health insurance | ฿1,500–3,500 | ฿3,500–6,000 | ฿6,000–12,000+ |
| Misc / lifestyle | ฿3,000–6,000 | ฿8,000–15,000 | ฿20,000+ |
A local Thai dish at a market or a no-frills restaurant is ฿50–80; a Western main in a tourist restaurant is ฿250–500+. Cook with imported groceries and your food bill climbs fast. The cheap-vs-expensive fork on Samui is almost always "how Thai do you eat, and how hard do you run the AC."
Per month, on a 12-month lease, mid-island baseline (prices rise nearer Chaweng and the best beaches, and fall in quiet Maenam or inland). Short lets and sea-view positions cost considerably more; expect to pay one to two months' deposit up front.
| Type | Monthly rent (฿) | Notes |
|---|---|---|
| Studio | ฿8,000–13,000 | Often a resort-style studio or small apartment |
| 1-bed apartment | ฿10,000–18,000 | The expat workhorse; fibre in main areas |
| Sea-view / new 1-bed or small villa | ฿18,000–28,000 | View and newness carry a clear premium |
| 2-bed / small pool villa | ฿20,000–45,000 | Wide spread by area, pool and finish |
| 3-bed pool villa | ฿40,000–80,000 | Family / premium; north & north-east priciest |
Where you live moves the number as much as what you rent. Chaweng (the main hub, beach and nightlife) sits at the top; Maenam (quiet, authentic, north coast) is the budget pick; Bophut and Choeng Mon command a family premium for proximity to the international schools and airport. Full trade-offs are in our neighbourhoods guide.
| Area | 1-bed rent (฿/mo) | Character |
|---|---|---|
| Chaweng | ฿14,000–20,000 | Main hub: biggest beach, nightlife, malls, hospitals nearby |
| Bophut / Fisherman's Village | ฿13,000–22,000 | Family favourite; walkable old village, near schools & airport |
| Choeng Mon | ฿14,000–24,000 | Quiet upscale north-east; families & well-off retirees |
| Lamai | ฿12,000–18,000 | 2nd-biggest town; real expat & growing nomad scene, cheaper |
| Maenam | ฿6,000–14,000 | Quietest & most affordable; local feel, budget retirees |
| Nathon | ฿6,000–12,000 | West-coast working town; ferry port, banks, cheapest, no resort vibe |
Ranges are indicative 2026 asking rents and move with season, condition and how hard you negotiate; long leases and paying quarterly often shave the rate.
Everything that is not grown, caught or made locally has to be shipped or flown onto the island, and that cost lands in the price tag. Imported cheese, wine, electronics, branded toiletries, baby formula and Western groceries all run noticeably higher than on the mainland — and meaningfully higher than Bangkok. Even getting off the island is a tax: there is no road out, so every trip home or to the mainland is a Bangkok Airways flight or a ferry. We cover that in detail in getting to Koh Samui. The flip side is that local produce, seafood, street food and Thai-made goods are cheap, so a Thai-leaning lifestyle is genuinely affordable.
Electricity / aircon is the swing cost. A small, well-shaded apartment with modest AC use might run ฿1,500–3,000 a month; a villa running multiple units through the hottest weeks can hit ฿6,500–10,000. It is the single most volatile line in a Samui budget — ask any landlord for recent bills before you sign. Health insurance is the other one — premiums climb steeply with age, and on an island where serious cases can mean a mainland flight, cover is strongly advised. Lock it in early.
These are typical ranges, not your budget. Use the Samui planner to build a personalised monthly figure from your own rent, household size and lifestyle, then compare it against Phuket if you are still choosing an island. Money figures here are 2026 market estimates, not guarantees.
A single person living leanly and eating mostly Thai gets by on roughly ฿25,000–35,000 a month; a comfortable single budget is about ฿50,000–66,000. A couple lives comfortably on around ฿65,000–95,000, and a family of four on roughly ฿80,000–130,000 — before international-school fees of ฿189,000–508,000 per child per year. All figures are 2026 market estimates.
Day-to-day Samui can be similar to Phuket and a touch pricier than Bangkok suburbs once the island premium on imported goods is factored in. Bangkok's big saving is living car-free on the metro; Samui has no metro, so most expats run a scooter. Local food, rent in quiet areas like Maenam, and Thai-made goods are cheap; imported groceries and getting off the island cost more.
Electricity. Air-conditioning is the most volatile line in a Samui budget — a modest apartment might cost ฿1,500–3,000 a month, but a villa running several AC units through April and May can reach ฿6,500–10,000. Always ask a landlord for recent electricity bills before signing a lease.
On a 12-month lease, studios run about ฿8,000–13,000, 1-bed apartments ฿10,000–18,000, sea-view or new 1-beds and small villas ฿18,000–28,000, and 3-bed pool villas ฿40,000–80,000. By area, Chaweng is the priciest hub while Maenam and Nathon are the most affordable, with 1-beds from around ฿6,000–14,000.
Because Samui is an island. Anything not grown, caught or made locally has to be shipped or flown in, and that logistics cost lands in the retail price. Imported cheese, wine, electronics and Western groceries all cost more than the mainland. Local produce, seafood and street food, by contrast, are cheap.
Most expats run a scooter at roughly ฿2,500–3,500 a month — it is the default vehicle and fuel is cheap. A car (roughly ฿15,000–20,000 a month all-in) is safer in rain and with children, and many families switch to one. Samui's roads carry a serious accident toll, so weigh safety, not just cost; see our getting-around guide.