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.
Koh Samui weather in décembre
A workable month, avec trade-offs.
décembre runs 1°C cooler than the annual average in Koh Samui.
Météo map for Koh Samui
Animated model layers. Pick a layer à load it.
Animated layers by Venty. For pin-level detail and nearby places, see the interactive map below.
Climat in Koh Samui month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mois | Max moyenne | Min moyenne | Précipitations | Évaluation |
|---|---|---|---|---|
| janvier | 26° | 22° | 58 mm | ★★★★☆ |
| février | 27° | 23° | 66 mm | ★★★★☆ |
| mars | 28° | 24° | 34 mm | ★★★★★ |
| avril | 30° | 24° | 47 mm | ★★★★☆ |
| mai | 29° | 24° | 140 mm | ★★★★☆ |
| juin | 30° | 24° | 83 mm | ★★★★☆ |
| juillet | 30° | 24° | 105 mm | ★★★★☆ |
| août | 29° | 23° | 129 mm | ★★★★☆ |
| septembre | 28° | 23° | 105 mm | ★★★★☆ |
| octobre | 27° | 23° | 235 mm | ★★★☆☆ |
| novembre | 26° | 22° | 301 mm | ★★★☆☆ |
| décembre | 26° | 22° | 182 mm | ★★★☆☆ |
Climat type: Temperate. Source : Open-Meteo archive (ERA5).
Meilleur moment pour visiter Koh Samui
Go in janvier, février, mars and avril. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: octobre, novembre and décembre – expect the least comfortable mix of heat, cold or rain.
What à pack, what à skip
- dim.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 octobre, novembre and décembre – historically the least comfortable months here.
How Koh Samui compares avec nearby places
Annual averages, and the difference against Koh Samui.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Khao Sok National Park | 176 km | 26°C | +1°C warmer | 2702 mm |
| Railay Beach | 211 km | 27°C | +2°C warmer | 2044 mm |
| Phuket International Airport | 243 km | 28°C | +3°C warmer | 2195 mm |
| maia Bay | 246 km | 28°C | +3°C warmer | 1965 mm |
| Phuket | 254 km | 28°C | +2°C warmer | 1981 mm |
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 3:59 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 3:59 AM heure locale. Live blocks refresh every 15 minutes; climate averages monthly.
