October weather forecast
Petaling Jaya, Malaysia

October, like September, is a hot autumn month in Petaling Jaya, Malaysia, with temperature in the range of an average low of 23.9°C (75°F) and an average high of 32.3°C (90.1°F).

Temperature

In October, the average high-temperature is practically the same as in September - a still tropical 32.3°C (90.1°F). In Petaling Jaya, the average low-temperature is 23.9°C (75°F).

Heat index

The average heat index in October is appraised at an extremely hot 43°C (109.4°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade 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 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, differences in body mass, height, and shape, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in October in Petaling Jaya is 75%.

Rainfall

In Petaling Jaya, Malaysia, during October, the rain falls for 26.7 days and regularly aggregates up to 169mm (6.65") of precipitation. Throughout the year, there are 309.8 rainfall days, and 1481mm (58.31") of precipitation is accumulated.

Daylight

The average length of the day in October in Petaling Jaya is 12h and 3min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:06 pm. On the last day of October, in Petaling Jaya, sunrise is at 6:56 am and sunset at 6:57 pm +08.

Sunshine

In October, the average sunshine in Petaling Jaya is 8.1h.

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 value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 7 in October transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.