Ko Samui Weather in March
Average highs run from 28°C on March 1 to 29°C on March 31, and lows from 27°C to 28°C. Normal precipitation for the month is 99 mm over about 9 wet days.
March day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
March at a glance
- Average high
- 29°C
- Average low
- 27°C
- Precipitation
- 99 mm
- Reanalysis high
- 31°CMar 25, 2013
- Reanalysis low
- 25°CMar 5, 1996
- Daylight
- 11 h 57 min to 12 h 13 min
- Cloud cover
- 49%
- Humidity
- 78%
- Dew point
- 24°C
- Wind
- 13.7 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Mar 1 | 28°C | 27°C | 29°C 1998 | 25°C 1996 | 23% |
| Mar 2 | 28°C | 27°C | 30°C 1998 | 25°C 2014 | 23% |
| Mar 3 | 28°C | 27°C | 30°C 2010 | 25°C 1996 | 23% |
| Mar 4 | 28°C | 27°C | 30°C 2010 | 25°C 1996 | 23% |
| Mar 5 | 28°C | 27°C | 30°C 2003 | 25°C 1996 | 24% |
| Mar 6 | 28°C | 27°C | 30°C 2010 | 25°C 1996 | 24% |
| Mar 7 | 28°C | 27°C | 30°C 2010 | 25°C 1996 | 24% |
| Mar 8 | 29°C | 27°C | 30°C 1998 | 26°C 1996 | 24% |
| Mar 9 | 29°C | 27°C | 31°C 1998 | 25°C 1996 | 24% |
| Mar 10 | 29°C | 27°C | 31°C 1998 | 25°C 1996 | 24% |
| Mar 11 | 29°C | 27°C | 30°C 1998 | 26°C 2005 | 24% |
| Mar 12 | 29°C | 27°C | 31°C 1998 | 26°C 2002 | 25% |
| Mar 13 | 29°C | 27°C | 31°C 2009 | 26°C 2002 | 26% |
| Mar 14 | 29°C | 27°C | 31°C 1998 | 26°C 2002 | 28% |
| Mar 15 | 29°C | 27°C | 30°C 1998 | 26°C 1996 | 30% |
| Mar 16 | 29°C | 27°C | 31°C 2007 | 26°C 1996 | 30% |
| Mar 17 | 29°C | 27°C | 31°C 2007 | 26°C 2011 | 32% |
| Mar 18 | 29°C | 27°C | 30°C 1998 | 26°C 1993 | 33% |
| Mar 19 | 29°C | 27°C | 30°C 2015 | 26°C 2009 | 34% |
| Mar 20 | 29°C | 27°C | 31°C 2013 | 26°C 2002 | 36% |
| Mar 21 | 29°C | 27°C | 30°C 2013 | 26°C 1993 | 37% |
| Mar 22 | 29°C | 27°C | 31°C 2019 | 26°C 1994 | 38% |
| Mar 23 | 29°C | 27°C | 31°C 2016 | 26°C 2002 | 38% |
| Mar 24 | 29°C | 27°C | 31°C 1998 | 26°C 2002 | 40% |
| Mar 25 | 29°C | 27°C | 31°C 2013 | 26°C 1994 | 42% |
| Mar 26 | 29°C | 28°C | 31°C 2010 | 26°C 2002 | 43% |
| Mar 27 | 29°C | 28°C | 31°C 1992 | 26°C 1995 | 43% |
| Mar 28 | 29°C | 28°C | 31°C 2013 | 27°C 2002 | 43% |
| Mar 29 | 29°C | 28°C | 31°C 2013 | 26°C 2011 | 42% |
| Mar 30 | 29°C | 28°C | 31°C 2020 | 26°C 2011 | 42% |
| Mar 31 | 29°C | 28°C | 31°C 2020 | 26°C 2011 | 41% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- March 1
- sunrise 6:34 AM, sunset 6:31 PM
- March 31
- sunrise 6:18 AM, sunset 6:31 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.