Koh Samui
Thailand · Southeast Asia
The best time to visit Koh Samui is January–April, July–August and December, when it is at its strongest for beach and nature & wildlife. Warm and mostly sunny with minimal rain days, ideal for diving and coastal exploration. Temperatures start to rise toward the hotter dry season.
Plan a trip to Koh SamuiMonth by month
| Month | Fit | Weather | Crowds & prices | What it's good for |
|---|---|---|---|---|
| January | 8/10 | 25°C · 18 rain days | crowds 5/5 · prices 5/5 | Beach, Nature & wildlife, Nightlife. Pleasant temperatures and decreasing rainfall make this a popular winter getaway for international travelers. Waters settle after the late-year monsoon, offering good swimming and water sports. |
| February | 9/10 | 26°C · 15 rain days | crowds 5/5 · prices 5/5 | Beach, Hiking, Nature & wildlife. One of the driest and sunniest months of the year with excellent sea conditions. Ideal for beach hopping, boat excursions to Ang Thong Marine Park, and outdoor activities. |
| March | 9/10 | 27°C · 11 rain days | crowds 4/5 · prices 4/5 | Beach, Nature & wildlife, Nightlife. Warm and mostly sunny with minimal rain days, ideal for diving and coastal exploration. Temperatures start to rise toward the hotter dry season. |
| April | 8/10 | 29°C · 15 rain days | crowds 4/5 · prices 4/5 | Beach, Nightlife, Nature & wildlife. Hot weather coincides with the nationwide Songkran water festival celebrations mid-month. Sea is warm and calm, though afternoon heat can be intense. |
| May | 6/10 | 29°C · 20 rain days | crowds 2/5 · prices 2/5 | Transition month bringing warmer air and increasing tropical showers. Lower crowds offer affordable resort rates and quiet beaches between downpours. |
| June | 7/10 | 28°C · 16 rain days | crowds 3/5 · prices 3/5 | Beach, Nature & wildlife, Nightlife. Relatively moderate rainfall compared to the mainland Andaman coast, making Samui an attractive summer choice. Showers are typically short afternoon bursts. |
| July | 8/10 | 28°C · 20 rain days | crowds 4/5 · prices 4/5 | Beach, Nightlife, Nature & wildlife. Brisk tourist influx driven by European summer holidays. Rainfall remains manageable and the island experiences plenty of clear sunny spells. |
| August | 8/10 | 28°C · 20 rain days | crowds 4/5 · prices 4/5 | Nightlife, Beach, Nature & wildlife. Busy high summer month with active beach life and island tours. Occasional rain showers occur but rarely disrupt entire days. |
| September | 6/10 | 27°C · 21 rain days | crowds 2/5 · prices 2/5 | Crowds thin out and weather turns more unpredictable ahead of the main monsoon. Sea swells pick up, making boat trips more weather-dependent. |
| October | 5/10 | 26°C · 27 rain days | crowds 1/5 · prices 1/5 | Peak Gulf monsoon brings frequent heavy downpours, rough seas, and reduced visibility for snorkeling. Many boat tours suspend operations during severe weather. |
| November | 5/10 | 25°C · 25 rain days | crowds 1/5 · prices 1/5 | Wettest month of the year with prolonged rainfall and risk of localized flooding. Ideal only for budget travelers seeking low hotel rates and spa retreats. |
| December | 8/10 | 25°C · 20 rain days | crowds 4/5 · prices 5/5 | Nightlife, Nature & wildlife. Weather improves progressively toward late December as monsoon winds subside. Holiday crowds surge for festive beach parties and year-end celebrations. |
Getting in
Israeli passport: Visa-free · up to 60 days — Visa exemption granted for tourism with passport valid for 6 months.
Other passports are checked in the app when you search. Rules change; verify before booking.
Other passports are checked in the app when you search. Rules change; verify before booking.
