Koh Samui Klima and Average Wetter
Klima of Koh Samui: average temperatures, rainfall and seasons month by month.
Klima in Koh Samui month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mo.at | Durchschnittliches Maximum | Durchschnittliches Minimum | Niederschlag | Bewertung |
|---|---|---|---|---|
| Januar | 26° | 22° | 58 mm | ★★★★☆ |
| Februar | 27° | 23° | 66 mm | ★★★★☆ |
| März | 28° | 24° | 34 mm | ★★★★★ |
| April | 30° | 24° | 47 mm | ★★★★☆ |
| Mai | 29° | 24° | 140 mm | ★★★★☆ |
| Juni | 30° | 24° | 83 mm | ★★★★☆ |
| Juli | 30° | 24° | 103 mm | ★★★★☆ |
| August | 29° | 23° | 97 mm | ★★★★☆ |
| September | 28° | 23° | 127 mm | ★★★★☆ |
| Oktober | 27° | 23° | 235 mm | ★★★☆☆ |
| November | 26° | 22° | 301 mm | ★★★☆☆ |
| Dezember | 26° | 22° | 182 mm | ★★★☆☆ |
Klima type: Temperate. Quelle: Open-Meteo archive (ERA5).
Recent extremes in Koh Samui
Hochest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How Koh Samui compares mit 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 | 2745 mm |
| Railay Beach | 211 km | 27°C | +2°C warmer | 2141 mm |
| Phuket International Airport | 243 km | 28°C | +2°C warmer | 2293 mm |
| Maia Bay | 246 km | 28°C | +3°C warmer | 2050 mm |
| Phuket | 254 km | 28°C | +2°C warmer | 2068 mm |
Beste Reisezeit Koh Samui
Go in Januar, Februar, März and April. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: Oktober, November and Dezember – expect the least comfortable mix of heat, cold or rain.
What this means for Koh Samui
Today is about average for August. The forecast high of 29°C is in line mit the 29°C typical for this month.
A 69% chance means rain is expected over most of the area. Plan indoor alternatives.
Böen und 63 km/h will push high-sided vehicles on exposed roads and bridges. 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 und August.
The gap between the warmest and coldest month averages 3°C – an unusually even climate through the year.
What und pack, what und skip
- Lightweight, light-coloured clothing and a refillable water bottle
- So.glasses, a brimmed hat and SPF 30+
- A packable rain shell – 7 of the next 7 days carry a real chance of rain
- Avoid exposed ridgelines, small boats and rooftop viewpoints während gusts stay above 63 km/h.
- If your dates are flexible, avoid Oktober, November and Dezember – historically the least comfortable months here.
Zusammenfassung
Koh Samui is an island in Thailand. Koh Samui is an island known for palm-fringed beaches in the Gulf.
Aktuell sind es 26°C (78°F) in Koh Samui mit bedeckt. Die gefühlte Temperatur beträgt 28°C. Heute liegen die Temperaturen zwischen 24°C und 29°C. Die Niederschlagswahrscheinlichkeit beträgt 69%. Die Bedingungen für Besichtigungen erreichen 7.7/10 – gute bedingungen.
Die beste Reisezeit für Koh Samui is Januar, Februar, März and April. Das Klima ist temperate. Oktober, November and Dezember sind meist die ungemütlichsten Mo.ate. April ist der wärmste Mo.at mit durchschnittlichen Höchstwerten um 30°C, während Januar ist der kälteste Mo.at mit Tiefstwerten um 22°C.
Der nächstgelegene große Flughafen ist Phuket International Airport (HKT), about 243 km away. Zu den Sehenswürdigkeiten in der Nähe gehören Khao Sok National Park, Railay Beach, Maia Bay and Phuket.
Kurz gesagt. Today is about average for August. The forecast high of 29°C is in line mit the 29°C typical for this month. The best window und be outside is roughly 9 AM und 12 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Koh Samui today at 9/10. Böen und 63 km/h will push high-sided vehicles on exposed roads and bridges. 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
Wetter map for Koh Samui
Animated model layers. Pick a layer und 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.
Klima 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 Asien.
What is the weather like in Koh Samui jetzt?
It is currently 26°C (78°F) mit bedeckt. Luftfeuchtigkeit is 78% and wind is 17 km/h.
When is the best time und visit Koh Samui?
Januar, Februar, März and April offer the most comfortable conditions in Koh Samui, which has a temperate climate. Oktober, November and Dezember are usually the hardest months for outdoor plans.
What time zone is Koh Samui in?
Koh Samui observes Asia/Bangkok (UTC+07:00). The Ortszeit is 8:34 AM.
What is the nearest airport und 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 und do in Koh Samui?
Popular options include Khao Sok National Park, Railay Beach, Maia Bay, Phuket and Langkawi.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) – coordinates, hierarchy and facts. |
|---|---|
| Vorhersage and observations | Open-Meteo (ECMWF and national models). |
| Luftqualität and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima 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 August 26, 2026 at 8:34 AM Ortszeit. Live blocks refresh every 15 minutes; climate averages monthly.
