The highest day temperature in September 2025 was 82°F. The lowest night temperature was 76°F. The average values for day and night temperatures during September were 79.3°F и 79.0°F respectivly.

The average sea surface temperature in September 2025 for Yasawa was 82.7°F. The maximum and minimum values were 81.8°F and 83.6°F respectively.

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

Precipitation total in September for Yasawa is 2.4 in. It makes september one of the least rainy months of the year.

The average wind speed in September is 17.2 mph. It makes September one of the most windy months of the year for Yasawa.

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 Yasawa in September is 6.9 hours.