The highest day temperature in September 2025 was 89°F. The lowest night temperature was 80°F. The average values for day and night temperatures during September were 86.2°F и 83.1°F respectivly.

The average sea surface temperature in September 2025 for Redang was 89.7°F. The maximum and minimum values were 89.0°F and 91.2°F respectively.

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

Precipitation total in September for Redang is 5.2 in.

The average wind speed in September is 6.3 mph. It makes September one of the most windless months of the year for Redang.

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 Redang in September is 7.0 hours.