The highest day temperature in July 2025 was 89°F. The lowest night temperature was 85°F. The average values for day and night temperatures during July were 86.7°F и 85.9°F respectivly.

The average sea surface temperature in July 2025 for Koh Chang was 88.5°F. The maximum and minimum values were 87.8°F and 89.4°F respectively.

Most of the days in July are gloomy but you can also expect sunny days.

Precipitation total in July for Koh Chang is 24.9 in. It makes july the most rainy month of the year.

The average wind speed in July is 11.1 mph. It makes July the most windy month of the year for Koh Chang.

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 Koh Chang in July is 5.2 hours.