August weather forecast
Dehianga, Sri Lanka

The last month of the summer, August, is another warm month in Dehianga, Sri Lanka, with an average temperature fluctuating between 21.2°C (70.2°F) and 29.2°C (84.6°F).

Temperature

Dehianga greets August with an average high-temperature of a still moderately hot 29.2°C (84.6°F), marking a slight deviation from the preceding month. Dehianga observes an average low-temperature of 21.2°C (70.2°F) during August nights.

Heat index

The heat index for August is evaluated at a very hot 35°C (95°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Dehianga, during August, the rain falls for 25.8 days and regularly aggregates up to 84mm (3.31") of precipitation. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

In August, the average length of the day is 12h and 21min.
On the first day of the month, sunrise is at 06:01 and sunset at 18:27. On the last day of August, sunrise is at 06:00 and sunset at 18:15 +0530.

Sunshine

In Dehianga, Sri Lanka, the average sunshine in August is 8.7h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during August translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.