Koh Samui 天气 预报
Koh Samui weather: 23°C, light drizzle. 逐小时 forecast, 14-day outlook, UV, air quality and the best time至visit.
14-day forecast for Koh Samui
最高 / 最低; 降水; UV
| 日期 | 天气状况 | 最高 / 最低 | 降水 | 风 | UV |
|---|---|---|---|---|---|
| 周三, 十月 28 | 🌧️ 阵雨 | 24° / 22° | 100% · 17 mm | 17 km/h | 1 |
| 周四, 十月 29 | ⛈️ 雷暴 | 26° / 22° | 99% · 31 mm | 18 km/h | 8 |
| 周五, 十月 30 | ⛈️ 雷暴 | 26° / 23° | 100% · 14 mm | 18 km/h | 8 |
| 周六, 十月 31 | ⛈️ 雷暴 | 26° / 21° | 92% · 17 mm | 14 km/h | 8 |
| 周日, 十一月 1 | 🌦️ 毛毛雨 | 27° / 23° | 90% · 5 mm | 11 km/h | 8 |
| 周一, 十一月 2 | 🌧️ Heavy drizzle | 26° / 22° | 80% · 9 mm | 10 km/h | 7 |
| 周二, 十一月 3 | 🌦️ 毛毛雨 | 26° / 22° | 92% · 7 mm | 10 km/h | 6 |
| 周三, 十一月 4 | 🌦️ 毛毛雨 | 27° / 22° | 100% · 6 mm | 14 km/h | 8 |
| 周四, 十一月 5 | 🌦️ 毛毛雨 | 26° / 23° | 90% · 7 mm | 9 km/h | 8 |
| 周五, 十一月 6 | 🌧️ Heavy drizzle | 26° / 22° | 100% · 10 mm | 11 km/h | 8 |
| 周六, 十一月 7 | 🌧️ Heavy drizzle | 25° / 22° | 98% · 14 mm | 13 km/h | 8 |
| 周日, 十一月 8 | 🌦️ Light showers | 25° / 21° | 97% · 18 mm | 15 km/h | 4 |
| 周一, 十一月 9 | 🌧️ Heavy drizzle | 26° / 22° | 96% · 7 mm | 13 km/h | 5 |
| 周二, 十一月 10 | 🌦️ 毛毛雨 | 26° / 21° | 91% · 8 mm | 15 km/h | 3 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 26°C against a 十月 normal of 28°C - 2°C below.
The next 7 days carry about 2.4 times a normal week's rain for 十月 (99 mm against 41 mm).
What this means for Koh Samui
Today is slightly cooler than average for 十月. The forecast high of 24°C is 3.3°C below the 28°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 17 mm is forecast, which is enough至soak trails and slow traffic.
Wet roads are likely; braking distances roughly double in heavy rain.
Within 15 degrees of the equator, day length barely changes all year; seasons are defined by rain, not temperature.
Northern Hemisphere, so peak summer falls in 六月至八月.
The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.
What至pack, what至skip
- 周日glasses, a brimmed hat and SPF 30+
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid 十月, 十一月 and 十二月 - historically the least comfortable months here.
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Koh Samui weather - more answers
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Frequently asked questions
Where is Koh Samui?
Koh Samui is an island in 泰国. Its coordinates are 9.512, 100.0136. It lies in 亚洲.
What is the weather like in Koh Samui现在?
It is currently 23°C (74°F)，天气为light drizzle. 湿度 is 93% and wind is 12 km/h.
When is the best time至visit Koh Samui?
一月, 二月, 三月 and 四月 offer the most comfortable conditions in Koh Samui, which has a temperate climate. 十月, 十一月 and 十二月 are usually the hardest months for outdoor plans.
What time zone is Koh Samui in?
Koh Samui observes Asia/Bangkok (UTC+07:00). The local time is 3:13 AM.
What is the nearest airport至Koh Samui?
The closest airports are Phuket International Airport (HKT), 243 km away and Suvarnabhumi Airport (BKK), 471 km away.
What are the top things至do in Koh Samui?
Popular options include Khao Sok National Park, Railay Beach, 五月a Bay and Langkawi.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| 预报 and observations | Open-Meteo (ECMWF and national models). |
| 空气质量 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 气候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated 十月 29, 2026 at 3:13 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
