Weather Forecast for Koh Samui
Surat Thani, Thailand
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Current Weather - Koh Samui: 33°C
Current Weather - Koh Samui: 33°C
Surat Thani, Thailand
Partly Cloudy
Feels like 42°C
Wind
6 km/h N
Humidity
67%
Pressure
1013 mb
UV Index
12
Visibility
10 km
Moderate rain
Saturday, June 13, 2026
High
30°C
Low
29°C
Rain Chance
74%
Hourly Forecast
29°C
29°C
29°C
29°C
29°C
33°C
29°C
29°C
29°C
30°C
30°C
30°C
30°C
30°C
29°C
29°C
Day Statistics
Maximum Wind
12 km/h
Humidity
71%
Precipitation
14 mm
UV Index
12
Visibility
10 km
Rain Chance
74%
Snow Chance
0%
Sun & Moon
Sunrise
05:59 AM
Sunset
06:40 PM
Moonrise
03:34 AM
Moonset
04:35 PM
Moon Phase
New Moon
Moon Illumination
1%
Air Quality
PM2.5
6.1
μg/m³
PM10
9.1
μg/m³
NO₂
1.1
μg/m³
O₃
75.8
μg/m³
SO₂
0.7
μg/m³
CO
150.6
μg/m³
Moderate rain
Sunday, June 14, 2026
High
30°C
Low
29°C
Rain Chance
67%
Hourly Forecast
29°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
29°C
29°C
29°C
29°C
30°C
30°C
29°C
29°C
29°C
30°C
29°C
Day Statistics
Maximum Wind
20 km/h
Humidity
70%
Precipitation
5 mm
UV Index
12
Visibility
10 km
Rain Chance
67%
Snow Chance
0%
Sun & Moon
Sunrise
05:59 AM
Sunset
06:40 PM
Moonrise
04:30 AM
Moonset
05:39 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
6
μg/m³
PM10
8.2
μg/m³
NO₂
1.3
μg/m³
O₃
70.9
μg/m³
SO₂
1
μg/m³
CO
142.5
μg/m³
Patchy rain nearby
Monday, June 15, 2026
High
30°C
Low
29°C
Rain Chance
57%
Hourly Forecast
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
30°C
29°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
Day Statistics
Maximum Wind
27 km/h
Humidity
69%
Precipitation
1 mm
UV Index
11
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
06:00 AM
Sunset
06:40 PM
Moonrise
05:31 AM
Moonset
06:46 PM
Moon Phase
New Moon
Moon Illumination
2%
Air Quality
PM2.5
5.2
μg/m³
PM10
6.9
μg/m³
NO₂
1.4
μg/m³
O₃
75
μg/m³
SO₂
1
μg/m³
CO
127
μg/m³
Patchy rain nearby
Tuesday, June 16, 2026
High
31°C
Low
29°C
Rain Chance
57%
Hourly Forecast
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
29°C
30°C
29°C
30°C
30°C
30°C
31°C
31°C
31°C
31°C
30°C
30°C
30°C
30°C
Day Statistics
Maximum Wind
32 km/h
Humidity
69%
Precipitation
1 mm
UV Index
11
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
06:00 AM
Sunset
06:40 PM
Moonrise
06:38 AM
Moonset
07:51 PM
Moon Phase
Waxing Crescent
Moon Illumination
6%
Air Quality
PM2.5
6.4
μg/m³
PM10
8.4
μg/m³
NO₂
1.6
μg/m³
O₃
81.3
μg/m³
SO₂
1.1
μg/m³
CO
140.4
μg/m³
Patchy rain nearby
Wednesday, June 17, 2026
High
30°C
Low
28°C
Rain Chance
64%
Hourly Forecast
29°C
29°C
29°C
29°C
29°C
29°C
29°C
28°C
28°C
29°C
29°C
29°C
29°C
29°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
30°C
Day Statistics
Maximum Wind
34 km/h
Humidity
71%
Precipitation
4 mm
UV Index
12
Visibility
10 km
Rain Chance
64%
Snow Chance
0%
Sun & Moon
Sunrise
06:00 AM
Sunset
06:41 PM
Moonrise
07:45 AM
Moonset
08:52 PM
Moon Phase
Waxing Crescent
Moon Illumination
11%
Air Quality
PM2.5
5.2
μg/m³
PM10
6.8
μg/m³
NO₂
1.6
μg/m³
O₃
75.5
μg/m³
SO₂
0.9
μg/m³
CO
154.4
μg/m³
Patchy rain nearby
Thursday, June 18, 2026
High
29°C
Low
29°C
Rain Chance
63%
Hourly Forecast
29°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
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
28 km/h
Humidity
70%
Precipitation
3 mm
UV Index
6
Visibility
10 km
Rain Chance
63%
Snow Chance
0%
Sun & Moon
Sunrise
06:00 AM
Sunset
06:41 PM
Moonrise
08:50 AM
Moonset
09:47 PM
Moon Phase
Waxing Crescent
Moon Illumination
19%
Patchy rain nearby
Friday, June 19, 2026
High
28°C
Low
28°C
Rain Chance
69%
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
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
34 km/h
Humidity
73%
Precipitation
4 mm
UV Index
6
Visibility
10 km
Rain Chance
69%
Snow Chance
0%
Sun & Moon
Sunrise
06:00 AM
Sunset
06:41 PM
Moonrise
09:50 AM
Moonset
10:36 PM
Moon Phase
Waxing Crescent
Moon Illumination
28%
Solar Radiation Data
Shortwave Radiation
693.66
Diffuse Radiation
78.01
DNI
1100
GTI
337.47
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