Koh Samui Météo Prévisions
Koh Samui weather: 24°C, ciel dégagé. Par heure forecast, 14-day outlook, UV, air quality and the best time à visit.
Risk assessment for Koh Samui
Derived from the current forecast window – not an official warning.
Peak gusts of 51 km/h and 2 thunderstorm days in the next 16 days.
Wettest single day forecast at 42 mm, 211 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Koh Samui
Derived from the forecast. No official alert feed is wired for this country yet.
16-prévisions à Koh Samui
Maximales, minimales, précipitations et UV quotidiens.
| Jour | Conditions | Max / Min | Précip. | Vent | UV |
|---|---|---|---|---|---|
| sam., oct 24 | 🌦️ Averses légères | 28° / 23° | 90% · 4 mm | 10 km/h | 8 |
| dim., oct 25 | 🌦️ Averses légères | 26° / 23° | 84% · 6 mm | 9 km/h | 8 |
| lun., oct 26 | 🌧️ Averses | 26° / 22° | 78% · 9 mm | 15 km/h | 8 |
| mar., oct 27 | ⛈️ Orage | 23° / 22° | 81% · 42 mm | 15 km/h | 8 |
| mer., oct 28 | 🌦️ Bruine légère | 27° / 23° | 92% · 2 mm | 14 km/h | 6 |
| jeu., oct 29 | 🌦️ Bruine | 26° / 23° | 96% · 7 mm | 10 km/h | 1 |
| ven., oct 30 | 🌦️ Averses légères | 25° / 22° | 99% · 17 mm | 13 km/h | 8 |
| sam., oct 31 | ⛈️ Orage | 27° / 23° | 94% · 10 mm | 19 km/h | 6 |
| dim., nov 1 | 🌦️ Averses légères | 26° / 21° | 94% · 15 mm | 10 km/h | 7 |
| lun., nov 2 | 🌦️ Bruine | 27° / 21° | 96% · 5 mm | 8 km/h | 8 |
| mar., nov 3 | 🌦️ Bruine | 26° / 21° | 94% · 12 mm | 14 km/h | 7 |
| mer., nov 4 | 🌦️ Averses légères | 25° / 21° | 98% · 18 mm | 13 km/h | 8 |
| jeu., nov 5 | 🌦️ Averses légères | 26° / 22° | 92% · 15 mm | 12 km/h | 6 |
| ven., nov 6 | 🌧️ Forte bruine | 25° / 22° | 90% · 9 mm | 9 km/h | 8 |
| sam., nov 7 | 🌦️ Averses légères | 26° / 22° | 70% · 19 mm | 11 km/h | 8 |
| dim., nov 8 | 🌧️ Averses | 25° / 22° | 72% · 21 mm | 12 km/h | 3 |
What this means for Koh Samui
Today is about average for octobre. The forecast high of 28°C is in line avec the 27°C typical for this month.
A 90% chance means rain is expected over most of the area. Plan indoor alternatives.
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 juin à août.
The gap between the warmest and coldest month averages 3°C – an unusually even climate through the year.
Voir les prévisions de Koh Samui par période
Koh Samui weather – more answers
Explore Koh Samui
Every topic we hold for this place, and the same topic for the places around it.
Météo for related places
Frequently asked questions
Where is Koh Samui?
Koh Samui is an island in Thaïlande. Its coordinates are 9.512, 100.0136. It lies in Asie.
What is the weather like in Koh Samui maintenant?
It is currently 24°C (76°F) avec ciel dégagé. Humidité is 86% and wind is 6 km/h.
When is the best time à visit Koh Samui?
janvier, février, mars and avril offer the most comfortable conditions in Koh Samui, which has a temperate climate. octobre, novembre and décembre are usually the hardest months for outdoor plans.
What time zone is Koh Samui in?
Koh Samui observes Asia/Bangkok (UTC+07:00). The heure locale is 3:44 AM.
What is the nearest airport à 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 à do in Koh Samui?
Popular options include Khao Sok National Park, Railay Beach, maia Bay and Langkawi.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) – coordinates, hierarchy and facts. |
|---|---|
| Prévisions and observations | Open-Meteo (ECMWF and national models). |
| Qualité de l’air and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climat 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 octobre 25, 2026 at 3:44 AM heure locale. Live blocks refresh every 15 minutes; climate averages monthly.
