Koh Samui Klimaat and Average Weer
Klimaat of Koh Samui: average temperatures, rainfall and seasons month by month.
Klimaat in Koh Samui month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Maand | Gem. maximum | Gem. minimum | Neerslag | Beoordeling |
|---|---|---|---|---|
| januari | 26° | 22° | 58 mm | ★★★★☆ |
| februari | 27° | 23° | 66 mm | ★★★★☆ |
| maart | 28° | 24° | 34 mm | ★★★★★ |
| april | 30° | 24° | 47 mm | ★★★★☆ |
| mei | 29° | 24° | 140 mm | ★★★★☆ |
| juni | 30° | 24° | 83 mm | ★★★★☆ |
| juli | 30° | 24° | 105 mm | ★★★★☆ |
| augustus | 29° | 23° | 129 mm | ★★★★☆ |
| september | 28° | 23° | 105 mm | ★★★★☆ |
| oktober | 27° | 23° | 235 mm | ★★★☆☆ |
| november | 26° | 22° | 301 mm | ★★★☆☆ |
| december | 26° | 22° | 182 mm | ★★★☆☆ |
Klimaat type: Temperate. Bron: Open-Meteo archive (ERA5).
Recent extremes in Koh Samui
Hoogest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How Koh Samui compares met 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 |
| meia Bay | 246 km | 28°C | +3°C warmer | 1965 mm |
| Phuket | 254 km | 28°C | +2°C warmer | 1981 mm |
Beste reistijd Koh Samui
Go in januari, februari, maart and april. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: oktober, november and december – expect the least comfortable mix of heat, cold or rain.
What this means for Koh Samui
Today is slightly warmer than average for oktober. The forecast high of 29°C is 1.8°C above the 27°C typical for this month.
A 67% 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 juni en augustus.
The gap between the warmest and coldest month averages 3°C – an unusually even climate through the year.
What en pack, what en skip
- Lightweight, light-coloured clothing and a refillable water bottle
- zoglasses, 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 oktober, november and december – historically the least comfortable months here.
Samenvatting
Koh Samui is an island in Thailand. Koh Samui is an island known for palm-fringed beaches in the Gulf.
Op dit moment is het 25°C (77°F) in Koh Samui met bewolkt. Het voelt als 28°C. Vandaag ligt de temperatuur tussen 24°C en 29°C. De kans op neerslag is 67%. De omstandigheden voor sightseeing scoren 8/10 – goede omstandigheden.
De beste tijd om Koh Samui is januari, februari, maart and april. Het klimaat is temperate. oktober, november and december zijn meestal de minst comfortabele maanden. april is de warmste maand, met gemiddelde maxima rond 30°C, terwijl januari is de koudste maand, met minima rond 22°C.
De dichtstbijzijnde grote luchthaven is Phuket International Airport (HKT), about 243 km away. Nabijgelegen hoogtepunten zijn Khao Sok National Park, Railay Beach, meia Bay and Langkawi.
Kort gezegd. Today is slightly warmer than average for oktober. The forecast high of 29°C is 1.8°C above the 27°C typical for this month. The best window en be outside is roughly 7 AM en 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Koh Samui today at 9.4/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Koh Samui
Weer map for Koh Samui
Animated model layers. Pick a layer en load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Koh Samui
Every topic we hold for this place, and the same topic for the places around it.
Klimaat for related places
Frequently asked questions
Where is Koh Samui?
Koh Samui is an island in Thailand. Its coordinates are 9.512, 100.0136. It lies in Azië.
What is the weather like in Koh Samui nu?
It is currently 25°C (77°F) met bewolkt. Luchtvochtigheid is 80% and wind is 10 km/h.
When is the best time en visit Koh Samui?
januari, februari, maart and april offer the most comfortable conditions in Koh Samui, which has a temperate climate. oktober, november and december are usually the hardest months for outdoor plans.
What time zone is Koh Samui in?
Koh Samui observes Asia/Bangkok (UTC+07:00). The lokale tijd is 6:57 PM.
What is the nearest airport en 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 en do in Koh Samui?
Popular options include Khao Sok National Park, Railay Beach, meia Bay and Langkawi.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) – coordinates, hierarchy and facts. |
|---|---|
| Voorspelling and observations | Open-Meteo (ECMWF and national models). |
| Luchtkwaliteit and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimaat 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 oktober 5, 2026 at 6:57 PM lokale tijd. Live blocks refresh every 15 minutes; climate averages monthly.
