August weather forecast
Unawatuna, Sri Lanka

The weather in August in Unawatuna, Sri Lanka show a rise in rainfall as compared to July, but the overall ambiance remains tropical and inviting. Distinctive sea breezes complement the average atmospheric pressure of 1009.6 mb, thus creating an enticing platform for a variety of water sports. Despite this minor upswing in precipitation, day-to-day weather remains somewhat comparative to July. Moving towards September, the region will still maintain a high level of rainfall but with a minor receding trend.

Temperature

During August and September, Unawatuna experiences its lowest temperatures, averaging a high-temperature of 28.3°C (82.9°F).

Heat index

The heat index value during August is computed to be a tropical 33°C (91.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In Unawatuna, Sri Lanka, the average relative humidity in August is 81%.

Rainfall

In August, in Unawatuna, the rain falls for 27.7 days. Throughout August, 235mm (9.25") of precipitation is accumulated. In Unawatuna, during the entire year, the rain falls for 286.9 days and collects up to 1974mm (77.72") of precipitation.

Sea temperature

January, February, June through October and December, with an average sea temperature of 28°C (82.4°F), are months with the coldest seawater in Unawatuna.
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

In August, the average length of the day is 12h and 19min.
On the first day of August, sunrise is at 06:03 and sunset at 18:26. On the last day of the month, sunrise is at 06:02 and sunset at 18:16 +0530.

Sunshine

In August, the average sunshine is 8.1h.

UV index

The months with the highest UV index in Unawatuna are January through April, June through August, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 7 during August, leads to the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.