The highest day temperature in August 2025 was 91°F. The lowest night temperature was 78°F. The average values for day and night temperatures during August were 88.2°F и 80.6°F respectivly.

The average sea surface temperature in August 2025 for Weligama was 84.6°F. The maximum and minimum values were 83.4°F and 85.6°F respectively.

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

Precipitation total in August for Weligama is 9.4 in. It makes august one of the most rainy months of the year.

The average wind speed in August is 13.5 mph. It makes August one of the most windy months of the year for Weligama.

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 Weligama in August is 5.4 hours.