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Weather Forecast for Koh Samui

Surat Thani, Thailand

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Light rain

Current Weather - Koh Samui: 30°C

Surat Thani, Thailand

Light rain

Feels like 36°C

Wind

19 km/h ESE

Humidity

79%

Pressure

1007 mb

UV Index

1

Visibility

10 km
Patchy rain nearby

Patchy rain nearby

Thursday, May 07, 2026

High

30°C

Low

29°C

Rain Chance

81%

Hourly Forecast

Partly Cloudy 30°C
12:00
Partly Cloudy 30°C
13:00
Partly Cloudy 30°C
14:00
Overcast 30°C
15:00
Partly Cloudy 30°C
16:00
Light rain 30°C
17:00
Sunny 30°C
18:00
Thundery outbreaks in nearby 30°C
19:00
Clear 30°C
20:00
Clear 30°C
21:00
Clear 30°C
22:00
Patchy light rain in area with thunder 30°C
23:00
May 08

Day Statistics

Maximum Wind

22 km/h

Humidity

73%

Precipitation

2 mm

UV Index

10

Visibility

10 km

Rain Chance

81%

Snow Chance

0%

Sun & Moon

Sunrise

06:01 AM

Sunset

06:31 PM

Moonrise

11:16 PM

Moonset

10:11 AM

Moon Phase

Waning Gibbous

Moon Illumination

77%

Air Quality

PM2.5

4.1

μg/m³

PM10

5.5

μg/m³

NO₂

1.4

μg/m³

O₃

55.7

μg/m³

SO₂

1

μg/m³

CO

146.8

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

637.44

Diffuse Radiation

213.38

DNI

511.27

GTI

644.19