The highest day temperature in May 2025 was 98°F. The lowest night temperature was 75°F. The average values for day and night temperatures during May were 88.9°F и 77.2°F respectivly.

The average sea surface temperature in May 2025 for Khao Lak was 90.1°F. The maximum and minimum values were 89.2°F and 91.2°F respectively.

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

Precipitation total in May for Khao Lak is 7.3 in.

The average wind speed in May is 6.6 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 Khao Lak in May is 6.9 hours.