Ko Samui Weather Conditions
Current Temperature Level
27 °C
28 AQI
Air quality index is: Good
Last Updated: 2025-09-28 08:15 (Local Time)
MapKo Samui
Ko Samui Weather Parameters
35 km/h
13 m/s
278° W
78 %
10 km
0.02 mm
1010 mb
UV Index1
Suggestions for
TodayKo Samui28 Sep.
Umbrella• Suggested
Clothing• Breathable
Driving• Drive Safely
Sunscreen• ApplyTrending in Thailand
Air Quality Monitoring for Logistics: Smarter Deliveries with Data
Ko Samui 10-Days Weather Forecast
Today
28°C
74 %Monday
28°C77 %Tuesday
28°C75 %Wednesday
27°C78 %Thursday
27°C73 %Friday
28°C75 %Saturday
28°C69 %Sunday
28°C74 %Monday
28°C74 %Tuesday
28°C71 %Moderate rain
Steady moderate rain with an expected temperature of 28 °C with 74% humidity and winds at 36.4 km/h.28°C / 27°C
Humi.74 %
Prec.5.33 mm
Sunrise
06:08 AM12hrs 4min
Sunset
06:12 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Cloudy
29 °C
71 %
0
25.6 kmph / WNW
Cloudy 
Feels 31.9 °C
Cover 73 %
Visibility 10 km
1 AM
Cloudy
29 °C
71 %
0
28.4 kmph / WNW
Cloudy Feels 32 °C
Cover 83 %
Visibility 10 km
2 AM
Overcast
28 °C
72 %
0
32.4 kmph / WNW
Overcast Feels 31.8 °C
Cover 100 %
Visibility 10 km
3 AM
Patchy rain nearby
28 °C
73 %
0
36.4 kmph / WNW
Patchy rain nearbyFeels 31.7 °C
Cover 53 %
Visibility 10 km
4 AM
Partly Cloudy
28 °C
74 %
0
36 kmph / W
Partly Cloudy Feels 31.5 °C
Cover 49 %
Visibility 10 km
5 AM
Patchy rain nearby
28 °C
74 %
0
35.6 kmph / W
Patchy rain nearbyFeels 31.2 °C
Cover 56 %
Visibility 10 km
6 AM
Partly Cloudy
28 °C
74 %
0
34.2 kmph / W
Partly Cloudy Feels 31.1 °C
Cover 56 %
Visibility 10 km
7 AM
Patchy rain nearby
28 °C
75 %
0.1
35.6 kmph / W
Patchy rain nearbyFeels 31 °C
Cover 64 %
Visibility 10 km
8 AM
Patchy rain nearby
27 °C
77 %
0.6
34.9 kmph / W
Patchy rain nearbyFeels 30.3 °C
Cover 78 %
Visibility 10 km
9 AM
Patchy rain nearby
27 °C
76 %
1.6
34.2 kmph / W
Patchy rain nearbyFeels 30.1 °C
Cover 68 %
Visibility 10 km
10 AM
Partly Cloudy
28 °C
74 %
3.3
31.7 kmph / W
Partly Cloudy Feels 30.4 °C
Cover 55 %
Visibility 10 km
11 AM
Partly Cloudy
28 °C
73 %
4.5
30.6 kmph / W
Partly Cloudy Feels 30.5 °C
Cover 45 %
Visibility 10 km
12 PM
Overcast
28 °C
73 %
3.7
30.6 kmph / W
Overcast Feels 30.7 °C
Cover 98 %
Visibility 10 km
1 PM
Overcast
28 °C
73 %
6.7
29.2 kmph / W
Overcast Feels 30.6 °C
Cover 88 %
Visibility 10 km
2 PM
Partly Cloudy
28 °C
73 %
8.5
25.9 kmph / W
Partly Cloudy Feels 30.7 °C
Cover 58 %
Visibility 10 km
3 PM
Patchy rain nearby
28 °C
73 %
4.2
23 kmph / W
Patchy rain nearbyFeels 30.8 °C
Cover 83 %
Visibility 10 km
4 PM
Patchy rain nearby
28 °C
73 %
1.4
22 kmph / W
Patchy rain nearbyFeels 30.9 °C
Cover 80 %
Visibility 10 km
5 PM
Light rain
28 °C
74 %
0.5
20.2 kmph / W
Light rainFeels 30.8 °C
Cover 90 %
Visibility 9 km
6 PM
Patchy rain nearby
28 °C
75 %
0
22.3 kmph / W
Patchy rain nearbyFeels 31.3 °C
Cover 89 %
Visibility 9 km
7 PM
Light drizzle
28 °C
74 %
0
26.3 kmph / WSW
Light drizzleFeels 31.8 °C
Cover 91 %
Visibility 2 km
8 PM
Light rain shower
28 °C
76 %
0
28.1 kmph / WSW
Light rain showerFeels 31.6 °C
Cover 86 %
Visibility 10 km
9 PM
Light rain shower
28 °C
78 %
0
28.4 kmph / WSW
Light rain showerFeels 31.3 °C
Cover 70 %
Visibility 10 km
10 PM
Light rain shower
27 °C
79 %
0
28.8 kmph / WSW
Light rain showerFeels 30.9 °C
Cover 76 %
Visibility 10 km
11 PM
Light rain shower
27 °C
80 %
0
28.1 kmph / W
Light rain showerFeels 30.7 °C
Cover 90 %
Visibility 10 km
Today
28°C74 %Monday
28°C77 %Tuesday
28°C75 %Wednesday
27°C78 %Thursday
27°C73 %Friday
28°C75 %Saturday
28°C69 %Sunday
28°C74 %Monday
28°C74 %Tuesday
28°C71 %Temp27 °C
ConditionPatchy rain nearby
Humidity76 %
Feels30.1 °C
Cover68 %
Visibility10 km
Wind Speed & Dir.34.2 kmph / W
UV1.6
Ko Samui 30-Days (September 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Mon.
29°27 °C
2Tue.
30°28 °C
3Wed.
29°28 °C
4Thu.
29°28 °C
5Fri.
30°28 °C
6Sat.
30°28 °C
7Sun.
29°28 °C
8Mon.
29°28 °C
9Tue.
29°27 °C
10Wed.
29°28 °C
11Thu.
28°28 °C
12Fri.
29°28 °C
13Sat.
29°26 °C
14Sun.
28°27 °C
15Mon.
29°27 °C
16Tue.
30°28 °C
17Wed.
29°28 °C
18Thu.
28°27 °C
19Fri.
29°27 °C
20Sat.
30°28 °C
21Sun.
30°28 °C
22Mon.
29°28 °C
23Tue.
30°28 °C
24Wed.
30°28 °C
25Thu.
31°28 °C
26Fri.
30°28 °C
27Sat.
28°25 °C
28Today
28°26 °C
29Mon.
28°27 °C
30Tue.
27°26 °C
SeptemberWeather Overview
No. of days:
Sunny
4
Cloudy
0
Rainy
26
Snowy
0
The monthly weather averages in Ko Samui consist of 4 sunny days, 0 cloudy days, 26 rainy days, and 0 snowy days.
Ko Samui's Locations Weather Conditions
Thailand's Hottest Cities - September 2025
1.
Satun, Thailand
Light rain shower
70%
1.1
15.8 kmph / WNW
2.
Kantang, Thailand
Partly Cloudy
73%
0.6
18 kmph / WNW
3.
Khu Khot, Thailand
Light rain shower
89%
0.8
9.7 kmph / WNW
4.
Ao Nang, Thailand
Partly Cloudy
79%
0.4
19.8 kmph / WNW
5.
Ko Samui, Thailand
Patchy rain nearby
77%
0.6
34.9 kmph / W
6.
Pak Nam, Thailand
Cloudy
79%
1
11.5 kmph / WNW
7.
Kut Rang, Thailand
Partly cloudy
84%
1.7
15.8 kmph / N
8.
Songkhla, Thailand
Partly Cloudy
72%
1.1
12.2 kmph / WSW
9.
Ban Patong, Thailand
Patchy light drizzle
76%
1.1
16.2 kmph / NW
10.
Kathu, Thailand
Patchy light drizzle
76%
1.1
16.2 kmph / NW
Last Updated: 28 Sept 2025, 01:47 AM
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