Ko Samui Weather Conditions
Current Temperature Level
29 °C
22 AQI
Air quality index is: Good
Last Updated: 2025-09-28 09:45 (Local Time)
MapKo Samui
Ko Samui Weather Parameters
34 km/h
13 m/s
277° W
25 %
10 km
0.01 mm
1010 mb
UV Index2
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
29 °C
75 %
1.6
34.2 kmph / W
Patchy rain nearbyFeels 30.1 °C
Cover 25 %
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 %Temp28 °C
ConditionPartly Cloudy
Humidity74 %
Feels30.4 °C
Cover55 %
Visibility10 km
Wind Speed & Dir.31.7 kmph / W
UV3.3
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.
Hua Hin, Thailand
Partly Cloudy
66%
2.3
8.6 kmph / WNW
2.
Cha am, Thailand
Partly Cloudy
66%
2.3
8.6 kmph / WNW
3.
Thung Song, Thailand
Partly cloudy
70%
2.3
4 kmph / WNW
4.
Pak Phanang, Thailand
Partly cloudy
70%
1.5
19.8 kmph / WSW
5.
Nakhon Si Thammarat, Thailand
Partly cloudy
70%
2.6
5.4 kmph / W
6.
Tha Mai, Thailand
Partly cloudy
84%
3.4
9 kmph / W
7.
Sadao, Thailand
Partly cloudy
70%
1.7
7.9 kmph / SW
8.
Ban Phru, Thailand
Partly cloudy
70%
2.1
9.7 kmph / SW
9.
Chiang Mai, Thailand
Patchy rain nearby
70%
6.8
3.6 kmph / NNE
10.
Mueang Chiang Mai District, Thailand
Patchy rain nearby
70%
6.8
3.6 kmph / NNE
Last Updated: 28 Sept 2025, 03:10 AM
Recent Blogs On Weather
Red Fort in Delhi is Not Red Anymore! It is Turning Black: Air Pollution Damaging Red Fort
The Red Fort, known worldwide for its majestic red sandstone walls, is facing a shocking transformation. Recent scientific studies reveal…
What’s the Connection Between Air Pollution and Blood Cancer?
Every year, around 1.24 million new cases of blood cancer are diagnosed across the globe, accounting for nearly 6% of…
