The highest day temperature in September 2025 was 97°F. The lowest night temperature was 82°F. The average values for day and night temperatures during September were 91.7°F и 83.7°F respectivly.

The average sea surface temperature in September 2025 for Batticaloa was 88.3°F. The maximum and minimum values were 87.6°F and 89.0°F respectively.

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

Precipitation total in September for Batticaloa is 3.6 in.

The average wind speed in September is 6.3 mph. It makes September the most windless month of the year for Batticaloa.

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 Batticaloa in September is 8.2 hours.