When to visit · What it costs
Koh Samui Seasons & Villa Pricing
Seven honest seasons. What the weather is like, how busy the island gets, and what a villa actually costs each one. So you can pick the week that fits your budget and your style.
Most Samui rental sites list one price and quietly multiply it at Christmas. We do the opposite: publish the calendar, publish the multipliers, let you choose the season that fits you. Every villa on our site uses the same formula — only the base rate changes.
Below: the seven seasons we use, what each one is like on the ground, and how the same villa can cost wildly different amounts depending on the week you pick.
Peak+250%
High+50%
StandardBase
Low-15%
Summer+150%
StandardBase
Rainy-15%
The seven seasons in detail
Christmas and New Year. The whole of Samui books out — flights, villas, beach clubs, fine-dining restaurants. Pricing reflects scarcity, not greed.
- Weather
- Cool dry — 24-30°C, blue skies, very little rain. Best weather of the year.
- How busy
- Island fully booked 6-12 months ahead. Restaurants, beaches and roads at capacity. Reserve everything in advance.
- Best for
- New Year fireworks, big family gatherings, Christmas in the tropics. Guests who want guaranteed sun and don't mind premium pricing.
High Season
11 Jan – 31 Mar
+50%
The classic Samui season — three solid months of dry, sunny weather. Demand stays strong throughout, particularly Chinese New Year and European school breaks.
- Weather
- Cool dry continues — 26-32°C, very low humidity, almost no rain. Genuinely perfect.
- How busy
- Very busy but workable. European winter escapees, families on half-term, long-stay snowbirds. Book 2-3 months ahead.
- Best for
- Couples and families wanting reliable weather without peak pricing. Long-stay digital nomads. Diving and boat trips.
Standard Spring
1 Apr – 29 Apr
Base
The bridge month. Genuinely good weather, normal pricing, and one of the most fun Thai cultural weeks of the year.
- Weather
- Hot dry shoulder — 28-34°C, building humidity. A few short showers possible mid-April.
- How busy
- Songkran (Thai New Year, 13-15 April) is the one busy week — water-festival celebrations across the island. Surrounding weeks calm.
- Best for
- Songkran is bucket-list for many. Outside that week, you get great weather with thin crowds.
Low Spring
30 Apr – 30 Jun
-15%
An underrated window. Most days are sunny with a quick afternoon shower; mornings and evenings are reliably dry.
- Weather
- Hot and humid — 28-33°C, occasional afternoon thunderstorms (clear by sunset). Sea generally calm.
- How busy
- Quiet. Best photography conditions, easy restaurant bookings, beaches feel private.
- Best for
- Value-seekers, photographers, couples, anyone who's done the busy seasons and wants Samui to themselves.
Summer High
1 Jul – 10 Sep
+150%
Many guests don't realise July-August is genuinely dry on Samui (the rain belt sits elsewhere). High pricing reflects strong, predictable demand.
- Weather
- Hot — 29-33°C. Drier than April-June; this is the unofficial second dry season on Samui (counter-intuitive, but true).
- How busy
- European and Israeli summer holidays. Families fill every villa. Book 3-4 months out.
- Best for
- Families on school break. Big groups. Anyone combining Samui with Phangan full-moon parties.
Standard Fall
11 Sep – 10 Oct
Base
One of the best value windows of the year. You'll get mostly sunny mornings with predictable late-afternoon rain.
- Weather
- Transition window — 28-31°C, increasing afternoon showers as the season turns. Sea starting to swell.
- How busy
- Calm. Locals call this the 'breathing month' between summer and rainy season.
- Best for
- Smart-money travellers who want good weather, normal pricing, and almost no crowds.
Rainy Low
11 Oct – 15 Dec
-15%
Samui's monsoon is real but not constant — most rainy-season days have 4-6 hours of sun. Villas with covered terraces, indoor lounges and a great kitchen shine here.
- Weather
- Samui's actual monsoon — 24-29°C. Several heavy downpours per week, often with full sunny stretches between. November is the wettest.
- How busy
- Very quiet. Restaurants happy to see you, beaches feel deserted, prices honest.
- Best for
- Spa retreats, work-from-villa stays, food and culture trips. Anyone who loves the sound of tropical rain.
Length-of-stay discounts
| Stay length | Label | Discount |
|---|
| 7+ nights | Week stay | −7% |
| 14+ nights | Two-week stay | −10% |
| 30+ nights | Month stay | −15% |
Stay longer, save more
Discounts stack on top of the seasonal rate. Stay 14 nights in May (low season) and you get −15% seasonal and −10% length-of-stay — a meaningful drop versus posted rate.
Stays over 60 nights, contact us directly — we have separate long-stay rates for digital nomads and remote workers.
What a week in each season costs
Worked example based on a 25,000 THB / night base rate (typical for a 3-4 bedroom managed villa). One week stay, 7% length-of-stay discount applied.
| Season |
Multiplier |
Per night |
7 nights subtotal |
Week discount |
You pay |
| Peak Peak Festive | 3.50× | 87,500 | 612,500 | −42,875 | 569,625 |
| High High Season | 1.50× | 37,500 | 262,500 | −18,375 | 244,125 |
| Standard Standard Spring | 1.00× | 25,000 | 175,000 | −12,250 | 162,750 |
| Low Low Spring | 0.85× | 21,250 | 148,750 | −10,413 | 138,337 |
| Summer Summer High | 2.50× | 62,500 | 437,500 | −30,625 | 406,875 |
| Standard Standard Fall | 1.00× | 25,000 | 175,000 | −12,250 | 162,750 |
| Rainy Rainy Low | 0.85× | 21,250 | 148,750 | −10,413 | 138,337 |
Figures shown in THB. Excludes optional add-ons (breakfast, transfers, daily housekeeping etc.). Same villa, same year — only the season changes.
Pick the season that fits you
Pull up any villa on our site and select your dates — the calculator applies the right seasonal rate automatically.
Browse villas
Ask us a question