10-day forecast — Koh Samui
Refreshed hourly
Fri · Today · 13 Nov
Showers
27°
25°
1.73 in
Wind9 mph E
Gusts18 mph
UV index8 – Very high
Precip chance92%
Sunrise6:13 AM
Sunset5:55 PM
Sat · Tomorrow · 14 Nov
Showers
28°
26°
0.49 in
Wind8 mph SE
Gusts16 mph
UV index8 – High
Precip chance88%
Sunrise6:13 AM
Sunset5:55 PM
Sunday · 15 Nov
Showers
29°
26°
0.19 in
Wind4 mph SE
Gusts9 mph
UV index10 – Very high
Precip chance80%
Sunrise6:13 AM
Sunset5:55 PM
Monday · 16 Nov
Showers
29°
26°
0.11 in
Wind3 mph W
Gusts7 mph
UV index6 – High
Precip chance72%
Sunrise6:14 AM
Sunset5:55 PM
Tuesday · 17 Nov
Showers
29°
27°
0.09 in
Wind7 mph SE
Gusts14 mph
UV index7 – High
Precip chance70%
Sunrise6:14 AM
Sunset5:55 PM
Wednesday · 18 Nov
Showers
28°
26°
0.65 in
Wind9 mph E
Gusts19 mph
UV index7 – High
Precip chance83%
Sunrise6:14 AM
Sunset5:55 PM
Thursday · 19 Nov
Showers
28°
26°
0.74 in
Wind11 mph E
Gusts23 mph
UV index6 – High
Precip chance84%
Sunrise6:15 AM
Sunset5:55 PM
Friday · 20 Nov
Showers
28°
26°
0.14 in
Wind8 mph E
Gusts22 mph
UV index6 – High
Precip chance76%
Sunrise6:15 AM
Sunset5:55 PM
Saturday · 21 Nov
Showers
27°
26°
0.26 in
Wind7 mph E
Gusts19 mph
UV index6 – High
Precip chance86%
Sunrise6:16 AM
Sunset5:55 PM
Sunday · 22 Nov
Showers
27°
25°
0.84 in
Wind11 mph E
Gusts20 mph
UV index6 – High
Precip chance90%
Sunrise6:16 AM
Sunset5:55 PM
Monday · 23 Nov
Showers
28°
25°
0.93 in
Wind7 mph E
Gusts17 mph
UV index6 – High
Precip chance84%
Sunrise6:17 AM
Sunset5:55 PM
Tuesday · 24 Nov
Showers
28°
26°
0.09 in
Wind4 mph NE
Gusts13 mph
UV index7 – High
Precip chance68%
Sunrise6:17 AM
Sunset5:55 PM
Wednesday · 25 Nov
Showers
28°
27°
0.21 in
Wind7 mph NE
Gusts19 mph
UV index6 – High
Precip chance80%
Sunrise6:17 AM
Sunset5:55 PM
Thursday · 26 Nov
Showers
28°
27°
0.44 in
Wind18 mph NE
Gusts23 mph
UV index6 – High
Precip chance87%
Sunrise6:18 AM
Sunset5:56 PM
About Koh Samui
CountryThailand
RegionGulf Islands
ContinentAsia
Time zoneAsia/Bangkok (+07:00)
Latitude9.5120°
Longitude100.0140°
Air QualityGood (AQI 39)
Details & indices
Wind
9 mph E
Gusts 17 mph
Humidity
94%
Dew point 24°
Pressure
29.88 inHg
Falling
UV index
8 — Very high
High today
Air Quality
Good
AQI 39 · US EPA
Visibility
4 mi
Reduced
Sun & moon
Sunrise6:13 AM
Sunset5:55 PM
Length of day11h 42m
Moonrise9:43 AM
Moonset9:28 PM
Moon phase🌔 Waxing Crescent
Local time1:24 AM (+07:00)
Koh Samui climate in November
8-year averages · when to visitBest months: January–December · November: Good
| October | November | December | |
|---|---|---|---|
| Average temperature | → 24°C | 24°C | → 24°C |
| Typical high | → 26°C | 26°C | ▼ 25°C |
| Typical low | → 22°C | 22°C | → 22°C |
| Water temperature | ▼ 30.3°C | 29.4°C | ▼ 28.5°C |
| Precipitation | ▲ 226 mm | 283 mm | ▼ 194 mm |
| Wet days | ▼ 28 d | 25 d | ▼ 19 d |
| Humidity | → 83% | 83% | ▼ 81% |
| Sunshine per day | ▼ 8.8 h | 8.6 h | ▲ 9.7 h |
| Cloud cover | → 26% | 26% | ▼ 17% |
| Midday UV | ▼ 11 | 9 | → 9 |
| Daylight | 11:55 | 11:41 | 11:35 |
| Our take | Good | Good | Good |
November temperatures day by day daily mean + smoothed trend · °C
November precipitation day by day mm
November UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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NBM + global weather models
Updated: 1:24 AM
Koh Samui, Thailand · 9.51°N, 100.01°E · Asia/Bangkok · Forecast computed for these exact coordinates