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 shift into August, Petaling Jaya maintains an average high temperature of a still hot 32.3°C (90.1°F), reflecting the same thermal conditions as the previous month. Petaling Jaya experiences an average temperature drop to a warm 23.8°C (74.8°F) during August nights.

Heat index

In August, the average heat index is estimated at an extremely hot 42°C (107.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

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

Rainfall

In Petaling Jaya, during August, the rain falls for 27.7 days and regularly aggregates up to 106mm (4.17") of precipitation. Throughout the year, in Petaling Jaya, there are 309.8 rainfall days, and 1481mm (58.31") of precipitation is accumulated.

Daylight

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

Sunshine

The average sunshine in August is 8.6h.

UV index

The months with the highest UV index are February through October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in August transforms into the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.