August weather forecast
Periyamulla, Sri Lanka

The last month of the summer, August, is also a moderately hot month in Periyamulla, Sri Lanka, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 25.4°C (77.7°F).

Temperature

The transition into August reveals an average high-temperature of a still warm 29.3°C (84.7°F), mirroring a close resemblance to July. The month of August shows a minor drop from daytime temperatures, generally recording a low average of 25.4°C (77.7°F).

Heat index

For most parts of August, the heat index is estimated at a sweltering 36°C (96.8°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the highest humidity in Periyamulla, Sri Lanka, are June through August, with an average relative humidity of 82%.

Rainfall

In August, the rain falls for 28.4 days. Throughout August, 210mm (8.27") of precipitation is accumulated. In Periyamulla, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

In Periyamulla, Sri Lanka, the average length of the day in August is 12h and 21min.
On the first day of the month, sunrise is at 06:04 and sunset at 18:29. On the last day of August, in Periyamulla, sunrise is at 06:03 and sunset at 18:18 +0530.

Sunshine

The average sunshine in August is 7.5h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 in August translates into these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.