Koh Samui 天気 予報
Koh Samui weather: 24°C, 曇り. 時間別 forecast, 14-day outlook, UV, air quality and the best timeからvisit.
7-day forecast for Koh Samui
最高 / 最低; 降水; UV
| 日 | 状況 | 最高 / 最低 | 降水 | 風 | UV |
|---|---|---|---|---|---|
| 水, 10月 28 | 🌧️ にわか雨 | 24° / 22° | 100% · 17 mm | 17 km/h | 1 |
| 木, 10月 29 | ⛈️ 雷雨 | 26° / 22° | 99% · 31 mm | 18 km/h | 8 |
| 金, 10月 30 | ⛈️ 雷雨 | 26° / 23° | 100% · 14 mm | 18 km/h | 8 |
| 土, 10月 31 | ⛈️ 雷雨 | 26° / 21° | 92% · 17 mm | 14 km/h | 8 |
| 日, 11月 1 | 🌦️ 霧雨 | 27° / 23° | 90% · 5 mm | 11 km/h | 8 |
| 月, 11月 2 | 🌧️ Heavy drizzle | 26° / 22° | 80% · 9 mm | 10 km/h | 7 |
| 火, 11月 3 | 🌦️ 霧雨 | 26° / 22° | 92% · 7 mm | 10 km/h | 6 |
Weekend outlook
⛈️ 26° / 21°
雷雨 · 92% rain · wind 14 km/h
🌦️ 27° / 23°
霧雨 · 90% rain · wind 11 km/h
Is today a good dayからvisit?
Activity scores from 0から10 based on temperature, rain, wind, sun and visibility.
Whatからpack, whatからskip
- 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 10月, 11月 and 12月 - historically the least comfortable months here.
Active alerts for Koh Samui
Derived from the forecast. No official alert feed is wired for this country yet.
時間帯別のKoh Samui 予報を見る
Koh Samui weather - more answers
Explore Koh Samui
Every topic we hold for this place, and the same topic for the places around it.
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Frequently asked questions
Where is Koh Samui?
Koh Samui is an island in タイ. Its coordinates are 9.512, 100.0136. It lies in アジア.
What is the weather like in Koh Samui現在?
It is currently 24°C (75°F)、曇り. 湿度 is 90% and wind is 12 km/h.
When is the best timeからvisit Koh Samui?
1月, 2月, 3月 and 4月 offer the most comfortable conditions in Koh Samui, which has a temperate climate. 10月, 11月 and 12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 5:11 PM.
What is the nearest airportから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からdo in Koh Samui?
Popular options include Khao Sok National Park, Railay Beach, 5月a Bay and Langkawi.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| 予報 and observations | Open-Meteo (ECMWF and national models). |
| 大気質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 気候 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 10月 28, 2026 at 5:11 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
