Koh Samui المناخ and Average الطقس
المناخ of Koh Samui: average temperatures, rainfall and seasons month by month.
المناخ in Koh Samui month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| الشهر | Avg high | Avg low | مطرfall | Rating |
|---|---|---|---|---|
| يناير | 26° | 22° | 58 mm | ★★★★☆ |
| فبراير | 27° | 23° | 66 mm | ★★★★☆ |
| مارس | 28° | 24° | 34 mm | ★★★★★ |
| أبريل | 30° | 24° | 47 mm | ★★★★☆ |
| ماي | 29° | 24° | 140 mm | ★★★★☆ |
| يونيو | 30° | 24° | 83 mm | ★★★★☆ |
| يوليو | 30° | 24° | 105 mm | ★★★★☆ |
| أغسطس | 29° | 23° | 129 mm | ★★★★☆ |
| سبتمبر | 28° | 23° | 105 mm | ★★★★☆ |
| أكتوبر | 27° | 23° | 235 mm | ★★★☆☆ |
| نوفمبر | 26° | 22° | 301 mm | ★★★☆☆ |
| ديسمبر | 26° | 22° | 182 mm | ★★★☆☆ |
المناخ type: Temperate. المصدر: Open-Meteo archive (ERA5).
Recent extremes in Koh Samui
مرتفعest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Koh Samui compares مع 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 |
| مايa Bay | 246 km | 28°C | +3°C warmer | 1965 mm |
| Phuket | 254 km | 28°C | +2°C warmer | 1981 mm |
أفضل وقت للزيارة Koh Samui
Go in يناير, فبراير, مارس and أبريل. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: أكتوبر, نوفمبر and ديسمبر - expect the least comfortable mix of heat, cold or rain.
What this means for Koh Samui
Today is slightly cooler than average for أكتوبر. The forecast high of 25°C is 2.6°C below the 27°C typical for this month.
A 97% chance means rain is expected over most of the area. Plan indoor alternatives. Around 16 mm is forecast, which is enough و soak trails and slow traffic.
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 يونيو و أغسطس.
The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.
What و pack, what و skip
- الأحدglasses, 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 أكتوبر, نوفمبر and ديسمبر - historically the least comfortable months here.
الملخص
Koh Samui is an island in تايلاند. Koh Samui is an island known for palm-fringed beaches in the Gulf.
درجة الحرارة الآن 23°C (74°F) in Koh Samui مع رذاذ. المحسوسة 27°C. تتراوح درجات الحرارة اليوم بين 22°C و 25°C. احتمال هطول الأمطار 97%. Sightseeing conditions score 6.3/10 - مقبول — خطط وفق الطقس.
أفضل وقت لزيارة Koh Samui is يناير, فبراير, مارس and أبريل. المناخ temperate. أكتوبر, نوفمبر and ديسمبر tend و be the least comfortable months. أبريل is the warmest month مع average highs near 30°C, while يناير is the coldest مع lows near 22°C.
The closest major airport is Phuket International Airport (HKT), about 243 km away. Nearby highlights include Khao Sok National Park, Railay Beach, مايa Bay and Langkawi.
باختصار. Today is slightly cooler than average for أكتوبر. The forecast high of 25°C is 2.6°C below the 27°C typical for this month. The best window و be outside is roughly 6 PM و 9 PM, 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
الطقس map for Koh Samui
Animated model layers. Pick a layer و load it.
Animated layers by الرياحy. 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.
المناخ for related places
Frequently asked questions
Where is Koh Samui?
Koh Samui is an island in تايلاند. Its coordinates are 9.512, 100.0136. It lies in آسيا.
What is the weather like in Koh Samui الآن?
It is currently 23°C (74°F) مع رذاذ. الرطوبة is 94% and wind is 11 km/h.
When is the best time و visit Koh Samui?
يناير, فبراير, مارس and أبريل offer the most comfortable conditions in Koh Samui, which has a temperate climate. أكتوبر, نوفمبر and ديسمبر 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 4:00 AM.
What is the nearest airport و 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 و do in Koh Samui?
Popular options include Khao Sok National Park, Railay Beach, مايa Bay and Langkawi.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| التوقعات and observations | Open-Meteo (ECMWF and national models). |
| جودة الهواء and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| المناخ 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 أكتوبر 27, 2026 at 4:00 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
