September weather forecast
Kuala Lumpur, Malaysia

Beautiful green park and the distant skyscrapers of Kuala Lumpur, Malaysia
Beautiful green park and the distant skyscrapers of Kuala Lumpur, Malaysia

Weather in September

The first month of the autumn, September, is also a hot month in Kuala Lumpur, Malaysia, with average temperature fluctuating between 23.2°C (73.8°F) and 32.1°C (89.8°F).

Temperature

In Kuala Lumpur, the average high-temperature in September is practically the same as in August - a still tropical 32.1°C (89.8°F). The average low-temperature, in Kuala Lumpur, is 23.2°C (73.8°F).

Heat index

In September, the average heat index is estimated at an extremely hot 42.2°C (108°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like clothing, differences in body mass, height, and shape, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In September, the average relative humidity in Kuala Lumpur is 74%.

Rainfall

In Kuala Lumpur, in September, during 24.1 rainfall days, 47mm (1.85") of precipitation is typically accumulated. Throughout the year, in Kuala Lumpur, there are 287.9 rainfall days, and 866mm (34.09") of precipitation is accumulated.

Snowfall

The only month with snowfall in Kuala Lumpur is September. September is the month with the most snowfall in Kuala Lumpur. Snow falls for 0.1 days and accumulates 2mm (0.08") of snow.

Daylight

In September, the average length of the day in Kuala Lumpur is 12.1h.

Sunshine

Months with the most sunshine in Kuala Lumpur, Malaysia, are June, July and September, with an average of 8.8h of sunshine.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in September in Kuala Lumpur?

The average high-temperature, in September, in Kuala Lumpur, is 32.1°C (89.8°F), while the average low-temperature is 23.2°C (73.8°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 42.2°C (108°F).

What is the average humidity in September in Kuala Lumpur?

The average relative humidity in September in Kuala Lumpur is 74%.

How much does it rain in Kuala Lumpur in September?

In Kuala Lumpur, Malaysia, in September, it is raining for 24.1 days, with typically 47mm (1.85") of accumulated precipitation.

What is the snowiest month in Kuala Lumpur?

The month with the most snowfall in Kuala Lumpur, Malaysia, is September when snow falls for 0.1 days and typically aggregates up to 2mm (0.08") of snow.

When does it start snowing in Kuala Lumpur?

September is the first month it typically snows in Kuala Lumpur. Throughout September, in the average 0.1 snowfall days, it receives 2mm (0.08") of snow.

What is the average length of the day in September in Kuala Lumpur?

In Kuala Lumpur, Malaysia, the average length of the day in September is 12.1h.

What are the months with the most sunshine in Kuala Lumpur?

June, July and September, with an average of 8.8h of sunshine, are months with the most sunshine in Kuala Lumpur.

How many hours of sunshine does Kuala Lumpur have in September?

The average sunshine in September in Kuala Lumpur, Malaysia, is 8.8h.

What are the months with the highest UV index in Kuala Lumpur?

Months with the highest UV index in Kuala Lumpur are February through December, with an average maximum UV index of 7.

What is the UV index reading in September in Kuala Lumpur?

In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation.

Average temperature in September
Kuala Lumpur, Malaysia

Average temperature in September - Kuala Lumpur, Malaysia
  • Average high temperature in September: 32.1°C

The warmest month (with the highest average high temperature) is April (32.4°C).
The month with the lowest average high temperature is December (30.6°C).

  • Average low temperature in September: 23.2°C

The month with the highest average low temperature is May (23.8°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).

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Average pressure in September
Kuala Lumpur, Malaysia

Average pressure in September - Kuala Lumpur, Malaysia
  • Average pressure in September: 1009.7mbar

The month with the highest atmospheric pressure is January (1010.5mbar).
Months with the lowest atmospheric pressure are May and June (1008.8mbar).

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Average wind speed in September
Kuala Lumpur, Malaysia

Average wind speed in September - Kuala Lumpur, Malaysia
  • Average wind speed in September: 4.5km/h

The windiest month (with the highest average wind speed) is July (4.8km/h).
The calmest month (with the lowest average wind speed) is November (3.9km/h).

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Average humidity in September
Kuala Lumpur, Malaysia

Average humidity in September - Kuala Lumpur, Malaysia
  • Average humidity in September: 74%

Months with the highest relative humidity are November and December (82%).
The month with the lowest relative humidity is August (73%).

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Average rainfall in September
Kuala Lumpur, Malaysia

Average rainfall in September - Kuala Lumpur, Malaysia
  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is November (109mm).
The driest month (with the least rainfall) is February (32mm).

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Average rainfall days in September
Kuala Lumpur, Malaysia

Average rainfall days in September - Kuala Lumpur, Malaysia
  • Average rainfall days in September: 24.1 days

The month with the highest number of rainy days is May (27 days).
The month with the least rainy days is February (18.7 days).

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Average snowfall in September
Kuala Lumpur, Malaysia

Average snowfall in September - Kuala Lumpur, Malaysia
  • Average snowfall in September: 2mm

The month with the highest snowfall is September (2mm).
Months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).

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Average snowfall days in September
Kuala Lumpur, Malaysia

Average snowfall days in September - Kuala Lumpur, Malaysia
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is September (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Kuala Lumpur, Malaysia

Average daylight in September / Average sunshine in September - Kuala Lumpur, Malaysia
  • Average daylight in September: 12.1h

Months with the longest days are May, June and July (Average daylight: 12.3h).
The month with the shortest days is December (Average daylight: 11.9h).

  • Average sunshine in September: 8.8h

Months with the most sunshine are June, July and September (Average sunshine: 8.8h).
The month with the least sunshine is December (Average sunshine: 7.3h).

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Average sunshine days in September
Kuala Lumpur, Malaysia

Average sunshine days in September - Kuala Lumpur, Malaysia
  • Average sunshine days in September: 3.7 days

The month with the most sunshine days is February (7.4 days).
The month with the least sunshine days is April (2.3 days).

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Average UV index in September
Kuala Lumpur, Malaysia

Average UV index in September - Kuala Lumpur, Malaysia
  • Average UV index in September: 7

Months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).

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Average cloud cover in September
Kuala Lumpur, Malaysia

Average cloud cover in September - Kuala Lumpur, Malaysia
  • Average cloud cover in September: 38

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in September
Kuala Lumpur, Malaysia

Average visibility in September - Kuala Lumpur, Malaysia
  • Average visibility in September: 9km

Months with the highest visibility are June and August (10km).
Months with the lowest visibility are January, November and December (8km).

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