The highest day temperature in August 2023 was 91°F. The lowest night temperature was 50°F. The average values for day and night temperatures during August were 86.8°F и 81.8°F respectivly.

The average sea surface temperature in August 2023 for Unawatuna was 87.2°F. The maximum and minimum values were 85.8°F and 89.0°F respectively.

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

Precipitation total in August for Unawatuna is 12.9 in. It makes august one of the most rainy months of the year.

The average wind speed in August is 12.1 mph. It makes August one of the most windy months of the year for Unawatuna.

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 Unawatuna in August is 5.7 hours.