August weather forecast
Petaling Jaya, Malaysia

Shifting from July to August, Petaling Jaya witnesses insignificant changes in climatic conditions. Humidity drops to 73%, potentially adding to the comfort level of locals and travellers alike. Consistent rainfall with occasional heavy showers continues to be a characteristic feature of the city's weather. It's during August that the city experiences a uniform distribution of temperatures. September brings a minor decline in temperature, while overall weather conditions remain similar.

Temperature

With the start of August, Petaling Jaya measures an average high-temperature of a still tropical 32.3°C, not significantly differing from July's hot 32.3°C. In Petaling Jaya, an average temperature of 23.8°C is noted during August nights.

Heat index

During August, the heat index is calculated to be a blistering 42°C. Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 73%.

Rainfall

In Petaling Jaya, in August, it is raining for 27.7 days, with typically 106mm of accumulated precipitation. Throughout the year, in Petaling Jaya, there are 309.8 rainfall days, and 1481mm of precipitation is accumulated.

Daylight

The average length of the day in August in Petaling Jaya is 12h and 13min.
On the first day of August, sunrise is at 7:12 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 7:19 pm +08.

Sunshine

In August, the average sunshine is 8.6h.

UV index

The months with the highest UV index in Petaling Jaya are February through October and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the UV index of 7 transforms into the following advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.