The highest day temperature in September 2023 was 96°F. The lowest night temperature was 80°F. The average values for day and night temperatures during September were 91.9°F и 83.8°F respectivly.

The average sea surface temperature in September 2023 for Trincomalee was 87.6°F. The maximum and minimum values were 86.8°F and 88.2°F respectively.

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

Precipitation total in September for Trincomalee is 4.3 in.

The average wind speed in September is 13.3 mph. It makes September one of the most windy months of the year for Trincomalee.

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 Trincomalee in September is 8.1 hours.