Weather Forecast for Koh Samui
Surat Thani, Thailand
Share this weather forecast
Current Weather - Koh Samui: 29°C
Current Weather - Koh Samui: 29°C
Surat Thani, Thailand
Patchy rain nearby
Feels like 34°C
Wind
29 km/h W
Humidity
72%
Pressure
1011 mb
UV Index
0
Visibility
10 km
Overcast
Wednesday, September 09, 2026
High
30°C
Low
28°C
Rain Chance
53%
Hourly Forecast
30°C
30°C
30°C
30°C
29°C
29°C
Day Statistics
Maximum Wind
31 km/h
Humidity
75%
Precipitation
1 mm
UV Index
12
Visibility
10 km
Rain Chance
53%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
06:24 PM
Moonrise
03:56 AM
Moonset
04:48 PM
Moon Phase
New Moon
Moon Illumination
2%
Air Quality
PM2.5
3.8
μg/m³
PM10
5.5
μg/m³
NO₂
1.3
μg/m³
O₃
55.6
μg/m³
SO₂
0.7
μg/m³
CO
141.8
μg/m³
Overcast
Thursday, September 10, 2026
High
30°C
Low
28°C
Rain Chance
73%
Hourly Forecast
29°C
29°C
29°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
29°C
29°C
29°C
30°C
30°C
30°C
29°C
29°C
29°C
29°C
29°C
Day Statistics
Maximum Wind
31 km/h
Humidity
74%
Precipitation
3 mm
UV Index
11
Visibility
10 km
Rain Chance
73%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
06:23 PM
Moonrise
04:56 AM
Moonset
05:36 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
1.8
μg/m³
PM10
2.4
μg/m³
NO₂
1.2
μg/m³
O₃
60.5
μg/m³
SO₂
0.5
μg/m³
CO
152.2
μg/m³
Patchy rain nearby
Friday, September 11, 2026
High
29°C
Low
28°C
Rain Chance
73%
Hourly Forecast
28°C
28°C
29°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
Day Statistics
Maximum Wind
37 km/h
Humidity
74%
Precipitation
3 mm
UV Index
6
Visibility
10 km
Rain Chance
73%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
06:22 PM
Moonrise
05:53 AM
Moonset
06:22 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
1.2
μg/m³
PM10
1.6
μg/m³
NO₂
1.2
μg/m³
O₃
57.4
μg/m³
SO₂
0.4
μg/m³
CO
138.9
μg/m³
Light rain shower
Saturday, September 12, 2026
High
28°C
Low
27°C
Rain Chance
85%
Hourly Forecast
28°C
28°C
28°C
28°C
28°C
27°C
27°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
28°C
Day Statistics
Maximum Wind
43 km/h
Humidity
76%
Precipitation
16 mm
UV Index
8
Visibility
10 km
Rain Chance
85%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
06:22 PM
Moonrise
06:48 AM
Moonset
07:07 PM
Moon Phase
New Moon
Moon Illumination
3%
Air Quality
PM2.5
0.8
μg/m³
PM10
1
μg/m³
NO₂
1.3
μg/m³
O₃
55.1
μg/m³
SO₂
0.4
μg/m³
CO
137.5
μg/m³
Light rain shower
Sunday, September 13, 2026
High
28°C
Low
25°C
Rain Chance
89%
Hourly Forecast
28°C
27°C
27°C
26°C
26°C
27°C
27°C
27°C
26°C
26°C
25°C
25°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
27°C
27°C
27°C
Day Statistics
Maximum Wind
36 km/h
Humidity
83%
Precipitation
25 mm
UV Index
4
Visibility
10 km
Rain Chance
89%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
06:21 PM
Moonrise
07:43 AM
Moonset
07:52 PM
Moon Phase
Waxing Crescent
Moon Illumination
8%
Air Quality
PM2.5
0.4
μg/m³
PM10
0.5
μg/m³
NO₂
0.9
μg/m³
O₃
61.1
μg/m³
SO₂
0.3
μg/m³
CO
123.8
μg/m³
Light rain shower
Monday, September 14, 2026
High
27°C
Low
26°C
Rain Chance
87%
Hourly Forecast
27°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
26°C
27°C
27°C
27°C
27°C
27°C
Day Statistics
Maximum Wind
37 km/h
Humidity
83%
Precipitation
8 mm
UV Index
6
Visibility
10 km
Rain Chance
87%
Snow Chance
0%
Sun & Moon
Sunrise
06:09 AM
Sunset
06:21 PM
Moonrise
08:37 AM
Moonset
08:38 PM
Moon Phase
Waxing Crescent
Moon Illumination
14%
Patchy rain nearby
Tuesday, September 15, 2026
High
29°C
Low
27°C
Rain Chance
83%
Hourly Forecast
27°C
27°C
27°C
27°C
27°C
27°C
27°C
28°C
28°C
27°C
27°C
28°C
28°C
28°C
28°C
28°C
29°C
28°C
28°C
27°C
27°C
27°C
27°C
27°C
Day Statistics
Maximum Wind
35 km/h
Humidity
80%
Precipitation
5 mm
UV Index
6
Visibility
10 km
Rain Chance
83%
Snow Chance
0%
Sun & Moon
Sunrise
06:09 AM
Sunset
06:20 PM
Moonrise
09:32 AM
Moonset
09:26 PM
Moon Phase
Waxing Crescent
Moon Illumination
23%
Your guide to the flawless travel experience
Popular Countries
Get our app
