The highest day temperature in September 2023 was 88°F. The lowest night temperature was 82°F. The average values for day and night temperatures during September were 85.5°F и 84.6°F respectivly.

The average sea surface temperature in September 2023 for Sihanoukville was 88.2°F. The maximum and minimum values were 87.2°F and 89.4°F respectively.

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

Precipitation total in September for Sihanoukville is 17.1 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 11.2 mph. It makes September one of the most windy months of the year for Sihanoukville.

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 Sihanoukville in September is 5.7 hours.