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Weather Forecast for Koh Samui

Surat Thani, Thailand

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Light rain shower

Current Weather - Koh Samui: 27°C

Surat Thani, Thailand

Light rain shower

Feels like 30°C

Wind

7 km/h SW

Humidity

79%

Pressure

1010 mb

UV Index

0

Visibility

10 km
Light rain shower

Light rain shower

Tuesday, October 20, 2026

High

28°C

Low

27°C

Rain Chance

84%

Hourly Forecast

Overcast 27°C
00:00
Overcast 28°C
01:00
Light drizzle 27°C
02:00
Light rain shower 27°C
03:00
Light rain shower 27°C
04:00
Light rain shower 27°C
05:00
Light rain shower 27°C
06:00
Light rain shower 28°C
07:00
Patchy rain nearby 28°C
08:00
Light rain shower 27°C
09:00
Light rain shower 27°C
10:00
Light rain shower 28°C
11:00
Partly Cloudy 28°C
12:00
Cloudy 28°C
13:00
Patchy rain nearby 28°C
14:00
Patchy rain nearby 28°C
15:00
Patchy rain nearby 28°C
16:00
Patchy rain nearby 28°C
17:00
Overcast 28°C
18:00
Light drizzle 28°C
19:00
Light rain shower 28°C
20:00
Light rain shower 27°C
21:00
Light rain shower 27°C
22:00
Overcast 27°C
23:00
Oct 21

Day Statistics

Maximum Wind

22 km/h

Humidity

78%

Precipitation

17 mm

UV Index

3

Visibility

9 km

Rain Chance

84%

Snow Chance

0%

Sun & Moon

Sunrise

06:08 AM

Sunset

06:01 PM

Moonrise

02:04 PM

Moonset

01:17 AM

Moon Phase

Waxing Gibbous

Moon Illumination

77%

Air Quality

PM2.5

1.7

μg/m³

PM10

2.1

μg/m³

NO₂

1.3

μg/m³

O₃

86.2

μg/m³

SO₂

0.8

μg/m³

CO

240.2

μg/m³

US EPA Index: 1 GB DEFRA Index: 1