August weather forecast
Vankalai, Sri Lanka

August, the last month of the summer in Vankalai, is another warm month, with an average temperature ranging between max 29.8°C (85.6°F) and min 27°C (80.6°F).

Temperature

With the arrival of August, Vankalai transitions to an average high temperature of a still warm 29.8°C (85.6°F), nearly identical to July's weather. During August, the nighttime temperatures align closely with the daytime averages, measuring a still moderately hot 27°C (80.6°F).

Heat index

August's average heat index is calculated to be a torrid 36°C (96.8°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. 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 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In August, the average relative humidity in Vankalai is 77%.

Rainfall

In August, in Vankalai, Sri Lanka, the rain falls for 15 days. Throughout August, 45mm (1.77") of precipitation is accumulated. In Vankalai, during the entire year, the rain falls for 181.2 days and collects up to 849mm (33.43") of precipitation.

Daylight

In Vankalai, the average length of the day in August is 12h and 25min.
On the first day of August, sunrise is at 06:01 and sunset at 18:31. On the last day of the month, sunrise is at 06:01 and sunset at 18:19 +0530.

Sunshine

In Vankalai, the average sunshine in August is 9.3h.

UV index

The months with the highest UV index in Vankalai are January through October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In August, the average maximum UV index of 7 translates into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.