The highest day temperature in September 2024 was 90°F. The lowest night temperature was 85°F. The average values for day and night temperatures during September were 87.1°F и 86.3°F respectivly.

The average sea surface temperature in September 2024 for Samui was 89.6°F. The maximum and minimum values were 88.8°F and 90.6°F respectively.

Most of the days in September are cloudy but you can also expect sunny or gloomy days.

Precipitation total in September for Samui is 4.2 in.

The average wind speed in September is 11.7 mph. It makes September one of the most windy months of the year for Samui.

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 September is 6.7 hours.