The highest day temperature in September 2025 was 84°F. The lowest night temperature was 74°F. The average values for day and night temperatures during September were 81.3°F и 77.6°F respectivly.

The average sea surface temperature in September 2025 for Luganville was 84.9°F. The maximum and minimum values were 84.2°F and 85.6°F respectively.

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

Precipitation total in September for Luganville is 4.4 in. It makes september one of the least rainy months of the year.

The average wind speed in September is 9.5 mph. It makes September one of the most windy months of the year for Luganville.

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 Luganville in September is 5.0 hours.