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Weather Forecast for Koh Samui

Surat Thani, Thailand

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Patchy rain nearby

Current Weather - Koh Samui: 29°C

Surat Thani, Thailand

Patchy rain nearby

Feels like 34°C

Wind

8 km/h WNW

Humidity

72%

Pressure

1010 mb

UV Index

0

Visibility

9 km
Moderate rain

Moderate rain

Saturday, June 20, 2026

High

29°C

Low

28°C

Rain Chance

76%

Hourly Forecast

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

Day Statistics

Maximum Wind

24 km/h

Humidity

74%

Precipitation

13 mm

UV Index

12

Visibility

10 km

Rain Chance

76%

Snow Chance

0%

Sun & Moon

Sunrise

06:01 AM

Sunset

06:41 PM

Moonrise

10:47 AM

Moonset

11:21 PM

Moon Phase

First Quarter

Moon Illumination

38%

Air Quality

PM2.5

3.6

μg/m³

PM10

4.7

μg/m³

NO₂

1.5

μg/m³

O₃

62.7

μg/m³

SO₂

0.8

μg/m³

CO

138.3

μg/m³

US EPA Index: 1 GB DEFRA Index: 1