The highest day temperature in March 2025 was 87°F. The lowest night temperature was 84°F. The average values for day and night temperatures during March were 85.7°F и 85.5°F respectivly.

The average sea surface temperature in March 2025 for Samui was 88.5°F. The maximum and minimum values were 87.0°F and 90.0°F respectively.

Most of the days in March are sunny but you can also expect cloudy and gloomy days.

Precipitation total in March for Samui is 2.6 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 10.4 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Samui in March is 8.1 hours.