Ko Samui, Thailand Weather
9.536, 99.936 · Asia/Bangkok
Updated Oct 20, 7:00 AM | Source Open-Meteo
Current weather in Ko Samui, Thailand is 77°F / 25°C and drizzle with winds at 2 mph from the southeast. Humidity is 95%, with a 89% chance of precipitation today. The 7-day outlook shows highs of 82 to 86°F (28 to 30°C) and lows of 75 to 79°F (24 to 26°C). Rain is likely on most days. Sky conditions tonight: Poor for stargazing (about 96% forecast cloud cover).
Current conditions
77°F
Drizzle
High 82°F / 28°C · Low 75°F / 24°C
Drizzle, rain is likely today, humidity makes it feel warmer than the actual temperature, winds are light.
88°F / 31°C
2 mph / 3 km/h SE
95%
2 mi / 3 km
89%
0.2
Hourly Forecast
7 AM
77°
Drizzle
75% · 2 mph
8 AM
80°
Heavy drizzle
78% · 1 mph
9 AM
79°
Heavy drizzle
83% · 2 mph
10 AM
79°
Rain showers
86% · 2 mph
11 AM
80°
Drizzle
87% · 3 mph
12 PM
82°
Light drizzle
88% · 3 mph
1 PM
82°
Light drizzle
88% · 3 mph
2 PM
83°
Light drizzle
89% · 7 mph
3 PM
82°
Drizzle
89% · 3 mph
4 PM
82°
Light drizzle
86% · 5 mph
5 PM
81°
Light drizzle
77% · 6 mph
6 PM
80°
Partly cloudy
65% · 4 mph
7 PM
80°
Overcast
57% · 4 mph
8 PM
80°
Overcast
56% · 4 mph
9 PM
80°
Overcast
58% · 4 mph
10 PM
80°
Overcast
61% · 4 mph
11 PM
78°
Light drizzle
62% · 7 mph
All hours shown in local time for this location (Asia/Bangkok).
Tonight's Night Sky & Stargazing Clarity
Poor (Heavy Clouds, High Wind, or Rain)
16/100
- Cloud Cover
96% - Wind Shear
4 mph - Moon Glare
about 63% illuminated
Score from forecast cloud cover, wind and rain chance over the coming night hours, minus a small penalty for moonlight. Moon illumination is an estimate.
7-day Forecast
Rain is likely on most days.
Today
Oct 20
Thunderstorm
High 82°Low 75°
89% precip
Wind 7 mph
Wed
Oct 21
Thunderstorm
High 84°Low 77°
94% precip
Wind 5 mph
Thu
Oct 22
Light drizzle
High 86°Low 79°
78% precip
Wind 6 mph
Fri
Oct 23
Drizzle
High 86°Low 77°
87% precip
Wind 9 mph
Sat
Oct 24
Rain showers
High 84°Low 77°
79% precip
Wind 9 mph
Sun
Oct 25
Rain showers
High 86°Low 75°
76% precip
Wind 9 mph
Mon
Oct 26
Light drizzle
High 84°Low 77°
79% precip
Wind 6 mph
Weather Alerts
No authoritative alert provider covers this location yet. We never estimate or fill in alerts — check your national weather service directly before making safety decisions.
How Today's Weather Affects the Sky
A 89% chance of precipitation today means clouds are likely to obscure much of tonight's sky.
For moon phase, aurora conditions, and exact visibility at your location tonight, see Sky Tonight.
Sources: NOAA/National Weather Service (US alerts) and Open-Meteo (global weather). Each section labels its own source, last update and freshness state. Always follow official local guidance during severe weather.
Live Radar — Ko Samui, Thailand
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