Weather Ko Samui long-term weather forecast
Long-term weather forecast for Ko Samui for ten days.
Friday, Jun 5
86 / 81°F
| 0.02 in | 13 mph |
| 81 °F | 90 °F | 1 am | |
| 81 °F | 90 °F | 7 am | |
| 86 °F | 97 °F | 1 pm | |
| 82 °F | 91 °F | 7 pm |
sunrise 5:58 am
sunset 6:38 pm
HOURLY
sunset 6:38 pm
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Weather forecast Ko Samui, Thailand extended forecast
| Time | State Temp. Feels like | Precip. | Wind | Pressure | Humidity | Dew | total |
Fog | Low |
Middle |
High |
||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Friday 06/05/2026 |
|||||||||||||
| 1 AM
7 PM
| cloudy | 81 °F 90 °F |
0.01 in | 23 fps 15 mph southwest |
29.8 in | 88 % | 75 °F | 85 % | 0% | 8% | 15% | 82% | |
| 7 AM
1 AM
| cloudy | 81 °F 90 °F |
0.01 in | 17 fps 12 mph southwest |
29.8 in | 87 % | 75 °F | 85 % | 0% | 5% | 5% | 84% | |
| 1 PM
7 AM
| heavy rain showers | 86 °F 97 °F |
0.56 in | 20 fps 13 mph west-southwest |
29.7 in | 78 % | 77 °F | 63 % | 0% | 4% | 1% | 60% | |
| 7 PM
1 PM
| overcast | 82 °F 91 °F |
0.01 in | 23 fps 16 mph west-southwest |
29.7 in | 85 % | 75 °F | 95 % | 0% | 26% | 7% | 93% | |
Saturday 06/06/2026 |
|||||||||||||
| 1 AM
7 PM
| overcast | 81 °F 90 °F |
0.01 in | 18 fps 12 mph southwest |
29.8 in | 88 % | 75 °F | 87 % | 0% | 0% | 2% | 87% | |
| 7 AM
1 AM
| light rain | 81 °F 90 °F |
0.02 in | 21 fps 14 mph southwest |
29.8 in | 89 % | 75 °F | 95 % | 0% | 3% | 0% | 95% | |
| 1 PM
7 AM
| rain | 86 °F 97 °F |
0.18 in | 17 fps 12 mph southwest |
29.8 in | 77 % | 77 °F | 100 % | 0% | 20% | 3% | 100% | |
| 7 PM
1 PM
| overcast | 82 °F 91 °F |
0.01 in | 18 fps 12 mph southwest |
29.8 in | 83 % | 77 °F | 99 % | 0% | 0% | 0% | 99% | |
Ko Samui, Thailand - information
State: ThailandGPS coordinates: 9.5357; 99.9357
Time zone: Asia / Bangkok
time difference in hours with time in US is +5 hours
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Weather Ko Samui, Thailand. Weather forecast Ko Samui.
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Data source
Weather forecast for Ko Samui is supplied by MET Norway Norwegian Meteorological Institute and the NRK.Feels like
To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.Weather with Meteobox for your website
Astronomical information Ko Samui
data are always in the local timeSun and light
June 5, 2026
| Sunrise: | Sunset: |
| 5:58 am | 6:38 pm |
| Noon: | Length of day: |
| 12:18 pm | 12:39 |
| Start of civil twilight*: | End of civil twilight*: |
| 5:35 am | 7:01 pm |
| Start of nautical twilight*: | End of nautical twilight*: |
| 5:09 am | 7:28 pm |
| Start of astronomical twilight*: | End of astronomical twilight*: |
| 4:42 am | 7:55 pm |
| * What is Twilight? | |
Moon and moon phases
| Moonrise: | Moonset: |
| 06/04/2026 9:58 pm | 06/05/2026 9:49 am |
| Next new moon: | Next full moon: |
| 06/15/2026 | 06/30/2026 |
