Cities / Thailand / Surat Thani

30°

☁️ Ko Samui weather

Overcast. Light rain starting around 7:15pm.

Feels like 31° Wind 39 km/h NW Humidity 72% UV 8 Air Good ☀ 06:11 - 18:38

Right now it is 30° in Ko Samui with overcast skies and today's high is 31° with an overnight low of 28°. The sun rises at 06:11 and sets at 18:38, giving 12h 27m of daylight. Over the coming week highs range from 29° to 30° - a steady stretch with little day-to-day change.

Ko Samui is in Surat Thani, Thailand, sitting 8 m above sea level, with a population of about 50,000. Local time is Asia/Bangkok (UTC+7), and every time on this page is shown in it.

Next 24 hours - temperature

28° 30° 32° 30° 28° 18:00 · 30.4° · 0 mm 19:00 · 30° · 0 mm 20:00 · 29.8° · 0.4 mm 21:00 · 29.5° · 0 mm 22:00 · 29.2° · 0.1 mm 23:00 · 29° · 0.2 mm 00:00 · 28.7° · 0.6 mm 01:00 · 28.6° · 0 mm 02:00 · 28.5° · 0 mm 03:00 · 28.3° · 0 mm 04:00 · 28.1° · 0 mm 05:00 · 28° · 0 mm 06:00 · 28.1° · 0 mm 07:00 · 28.1° · 0 mm 08:00 · 28.2° · 0 mm 09:00 · 28.6° · 0 mm 10:00 · 28.9° · 0 mm 11:00 · 29° · 0 mm 12:00 · 29.4° · 0 mm 13:00 · 29.4° · 0 mm 14:00 · 29.7° · 0 mm 15:00 · 30.4° · 0 mm 16:00 · 29.8° · 0.4 mm 17:00 · 29.8° · 0 mm

Precipitation

18:00 · 0 mm 18:00 19:00 · 0 mm 20:00 · 0.4 mm 21:00 · 0 mm 21:00 22:00 · 0.1 mm 23:00 · 0.2 mm 00:00 · 0.6 mm 00:00 01:00 · 0 mm 02:00 · 0 mm 03:00 · 0 mm 03:00 04:00 · 0 mm 05:00 · 0 mm 06:00 · 0 mm 06:00 07:00 · 0 mm 08:00 · 0 mm 09:00 · 0 mm 09:00 10:00 · 0 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 0 mm 14:00 · 0 mm 15:00 · 0 mm 15:00 16:00 · 0.4 mm 17:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
18:00 ☁️ 30.4° 29.1° - Overcast
19:00 ☁️ 30° 28.9° - Overcast
20:00 🌦️ 29.8° 29.1° 0.4 mm Light rain
21:00 ☁️ 29.5° 28.9° - Overcast
22:00 🌦️ 29.2° 28.7° 0.1 mm Light rain
23:00 🌦️ 29° 29° 0.2 mm Light rain
00:00 🌦️ 28.7° 29.4° 0.6 mm Light rain
01:00 ☁️ 28.6° 29.7° - Overcast
02:00 ☁️ 28.5° 29.6° - Overcast
03:00 🌤️ 28.3° 29.4° - Mostly clear
04:00 🌤️ 28.1° 28.7° - Mostly clear
05:00 🌤️ 28° 28.1° - Mostly clear

Next 16 days

Today🌦️ 31°28°0.7mm Fri 14🌧️ 30°28°5.9mm Sat 15🌧️ 30°28°12.9mm Sun 16🌧️ 29°28°3.6mm Mon 17🌦️ 29°27°0.6mm Tue 18🌦️ 29°27°1.5mm Wed 19☁️ 30°27°0.3mm Thu 20☁️ 31°28° Fri 21☁️ 31°28° Sat 22☁️ 30°28° Sun 23🌦️ 30°28°0.9mm Mon 24🌦️ 30°28°0.9mm Tue 25☁️ 30°28° Wed 26☁️ 31°28° Thu 27⛅ 31°28°0.3mm Fri 28🌦️ 29°28°2.5mm
🌦️ TodayAugust 13th Avg 29° Low 28° at 08:00 High 31° at 16:00 0.7 mm rain Wind ~39 km/h
Clear Clear
00:00 29°
02:00 29°
04:00 29°
06:00 28°
08:00 28°
10:00 28°
12:00 29°
14:00 30°
16:00 31°
18:00 30°
20:00 30° 0.4mm
22:00 29° 0.1mm
🌧️ FridayAugust 14th Avg 29° Low 28° at 05:00 High 30° at 15:00 5.9 mm rain Wind ~35 km/h
Clear Cloudy Rain
00:00 29° 0.6mm
02:00 29°
04:00 28°
06:00 28°
08:00 28°
10:00 29°
12:00 29°
14:00 30°
16:00 30° 0.4mm
18:00 30°
20:00 30°
22:00 29° 1.1mm
🌧️ SaturdayAugust 15th Avg 29° Low 28° at 08:00 High 30° at 16:00 12.9 mm rain Wind ~42 km/h
Rain Cloudy Rain
00:00 28° 3.3mm
02:00 29° 0.6mm
04:00 29°
06:00 28°
08:00 28°
10:00 28°
12:00 28°
14:00 29°
16:00 30°
18:00 29° 0.2mm
20:00 28° 1.5mm
22:00 29° 0.4mm
🌧️ SundayAugust 16th Avg 28° Low 28° at 23:00 High 29° at 00:00 3.6 mm rain Wind ~41 km/h
Cloudy Rain Cloudy
00:00 29°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 28°
12:00 28° 1.8mm
14:00 28° 0.3mm
16:00 28° 0.1mm
18:00 29°
20:00 28°
22:00 28°
🌦️ MondayAugust 17th Avg 28° Low 27° at 07:00 High 29° at 21:00 0.6 mm rain Wind ~41 km/h
Cloudy Cloudy
00:00 28°
02:00 28°
04:00 28° 0.1mm
06:00 28°
08:00 27° 0.2mm
10:00 28°
12:00 28°
14:00 28°
16:00 28°
18:00 28°
20:00 28°
22:00 28°
🌦️ TuesdayAugust 18th Avg 28° Low 27° at 22:00 High 29° at 16:00 1.5 mm rain Wind ~42 km/h
Rain Cloudy Rain Cloudy
00:00 28°
02:00 27° 0.1mm
04:00 27° 0.3mm
06:00 28° 0.1mm
08:00 28°
10:00 28°
12:00 28° 0.1mm
14:00 28°
16:00 29°
18:00 28°
20:00 28°
22:00 27°
☁️ WednesdayAugust 19th Avg 28° Low 27° at 00:00 High 30° at 19:00 0.3 mm rain Wind ~37 km/h
Cloudy Rain Cloudy
00:00 27°
02:00 27°
04:00 27°
06:00 27°
08:00 27°
10:00 28°
12:00 28°
14:00 28°
16:00 29°
18:00 29° 0.1mm
20:00 29°
22:00 29°
☁️ ThursdayAugust 20th Avg 29° Low 28° at 05:00 High 31° at 16:00 Wind ~38 km/h
Cloudy Partly Cloudy Clear Cloudy
00:00 29°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 28°
12:00 29°
14:00 30°
16:00 31°
18:00 30°
20:00 30°
22:00 29°
☁️ FridayAugust 21st Avg 29° Low 28° at 05:00 High 31° at 16:00 Wind ~40 km/h
Cloudy
00:00 28°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 28°
12:00 30°
14:00 31°
16:00 31°
18:00 30°
20:00 30°
22:00 29°
☁️ SaturdayAugust 22nd Avg 29° Low 28° at 08:00 High 30° at 16:00 Feels 32° Wind ~35 km/h
Cloudy
00:00 29°
02:00 29°
04:00 28°
06:00 28°
08:00 28°
10:00 28°
12:00 29°
14:00 30°
16:00 30°
18:00 30°
20:00 30°
22:00 29°
🌦️ SundayAugust 23rd Avg 29° Low 28° at 04:00 High 30° at 16:00 0.9 mm rain Wind ~34 km/h
Cloudy Rain Cloudy
00:00 29°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 28°
12:00 29°
14:00 29°
16:00 30°
18:00 30° 0.3mm
20:00 30°
22:00 29°
🌦️ MondayAugust 24th Avg 29° Low 28° at 06:00 High 30° at 18:00 0.9 mm rain Wind ~35 km/h
Cloudy Rain
00:00 29°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 29°
12:00 29°
14:00 30°
16:00 30°
18:00 30° 0.2mm
20:00 30° 0.1mm
22:00 29° 0.1mm
☁️ TuesdayAugust 25th Avg 29° Low 28° at 06:00 High 30° at 16:00 Feels 33° Wind ~34 km/h
Cloudy Partly Cloudy
00:00 29°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 29°
12:00 29°
14:00 30°
16:00 30°
18:00 30°
20:00 30°
22:00 29°
☁️ WednesdayAugust 26th Avg 29° Low 28° at 06:00 High 31° at 16:00 Wind ~36 km/h
Cloudy
00:00 29°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 29°
12:00 29°
14:00 30°
16:00 31°
18:00 30°
20:00 30°
22:00 29°
⛅ ThursdayAugust 27th Avg 29° Low 28° at 06:00 High 31° at 16:00 0.3 mm rain Wind ~39 km/h
Clear Partly Cloudy Rain Partly Cloudy
00:00 29°
02:00 28°
04:00 28°
06:00 28°
08:00 28°
10:00 28°
12:00 29°
14:00 29°
16:00 31°
18:00 30° 0.1mm
20:00 30°
22:00 29°
🌦️ FridayAugust 28th Avg 29° Low 28° at 07:00 High 29° at 19:00 2.5 mm rain Wind ~35 km/h
Cloudy Rain Cloudy
00:00 29°
02:00 29°
04:00 28°
06:00 28°
08:00 28° 0.3mm
10:00 28° 0.3mm
12:00 29° 0.1mm
14:00 29° 0.3mm
16:00 29° 0.3mm
18:00 29° 0.1mm
20:00 29°
22:00 29°

Sun

☀️ Sunrise 06:11 · Sunset 18:38

12h 27m of daylight · Asia/Bangkok

Air quality

PM2.5 6.8 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Ban Nathon · 0 km Ban Ta Kian · 1.7 km Ban Hin Lat · 1.9 km Ban Bang Makham · 2.2 km Ban Laem Din · 2.5 km Ban Lipa Yai · 2.7 km

Tools for Ko Samui

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Ko Samui weather

Will it rain in Ko Samui today?

Only a trace - around 0.7 mm is expected in Ko Samui today, not enough to need an umbrella.

What is the temperature in Ko Samui right now?

It is 30° in Ko Samui right now. Today runs between a low of 28° and a high of 31°.

What time is sunrise and sunset in Ko Samui?

The sun rises at 06:11 and sets at 18:38 local time in Ko Samui today, giving 12h 27m of daylight.

What is the air quality in Ko Samui?

PM2.5 in Ko Samui is currently 6.8 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Ko Samui forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Ko Samui best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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