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Weather Forecast for Koh Samui

Surat Thani, Thailand

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Overcast

Current Weather - Koh Samui: 28°C

Surat Thani, Thailand

Overcast

Feels like 32°C

Wind

5 km/h WSW

Humidity

74%

Pressure

1011 mb

UV Index

0

Visibility

10 km
Overcast

Overcast

Wednesday, September 30, 2026

High

29°C

Low

28°C

Rain Chance

67%

Hourly Forecast

Light rain shower 28°C
00:00
Overcast 29°C
01:00
Patchy rain nearby 28°C
02:00
Overcast 28°C
03:00
Overcast 28°C
04:00
Light rain shower 28°C
05:00
Light rain shower 28°C
06:00
Overcast 28°C
07:00
Light rain shower 28°C
08:00
Light rain shower 28°C
09:00
Cloudy 28°C
10:00
Overcast 28°C
11:00
Light rain shower 28°C
12:00
Partly Cloudy 28°C
13:00
Overcast 29°C
14:00
Sunny 29°C
15:00
Sunny 29°C
16:00
Overcast 29°C
17:00
Sunny 29°C
18:00
Clear 29°C
19:00
Partly Cloudy 29°C
20:00
Patchy rain nearby 29°C
21:00
Clear 29°C
22:00
Patchy rain nearby 29°C
23:00
Oct 01

Day Statistics

Maximum Wind

7 km/h

Humidity

72%

Precipitation

4 mm

UV Index

12

Visibility

10 km

Rain Chance

67%

Snow Chance

0%

Sun & Moon

Sunrise

06:08 AM

Sunset

06:11 PM

Moonrise

08:48 PM

Moonset

08:54 AM

Moon Phase

Waning Gibbous

Moon Illumination

75%

Air Quality

PM2.5

7.4

μg/m³

PM10

7.8

μg/m³

NO₂

1.2

μg/m³

O₃

110.3

μg/m³

SO₂

1.5

μg/m³

CO

286.7

μg/m³

US EPA Index: 1 GB DEFRA Index: 1