September weather forecast
Kuala Lumpur, Malaysia

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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

September witnesses a slight shift in weather conditions in Kuala Lumpur, with cloud cover increasing to 38%. There is non-significant variation in temperature or humidity levels in comparison to August. However, the city sees the first traces of snowfall in the year, although it is a minuscule 2mm (0.08") that barely registers. The blend of sunny and snowy conditions epitomizes Kuala Lumpur's tropical weather. As the city steps into October, it prepares to endure the highest levels of rainfall for the year.

Temperature

With September's arrival, Kuala Lumpur notes an average high-temperature of a still hot 32.1°C (89.8°F), closely following the trend of the preceding month. The temperature in Kuala Lumpur lowers to an average of 23.2°C (73.8°F) during September nights.

Heat index

September's mean heat index is estimated at a blisteringly hot 42°C (107.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
For clarity, heat index numbers account for light winds and areas under shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Kuala Lumpur, during September, the rain falls for 24.1 days and regularly aggregates up to 47mm (1.85") of precipitation. Throughout the year, in Kuala Lumpur, there are 287.9 rainfall days, and 866mm (34.09") of precipitation is accumulated.

Snowfall

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

Daylight

In Kuala Lumpur, the average length of the day in September is 12h and 8min.
On the first day of September in Kuala Lumpur, sunrise is at 7:07 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:05 pm +08.

Sunshine

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

UV index

The months with the highest UV index in Kuala Lumpur are February through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

How hot does it get in Kuala Lumpur in September?

The average high-temperature and low-temperature during September are 32.1°C (89.8°F) and 23.2°C (73.8°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is estimated at 42°C (107.6°F).

What is the average humidity in September in Kuala Lumpur?

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

How much does it rain in Kuala Lumpur in September?

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

When does it snow the most in Kuala Lumpur?

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

When does it start to snow 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.

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

In Kuala Lumpur, the average day length in September is 12h and 8min.

What time are sunrise and sunset in September in Kuala Lumpur?

On the first day of September in Kuala Lumpur, Malaysia, sunrise is at 7:07 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:05 pm +08.

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, Malaysia.

How long on average sun shines in September in Kuala Lumpur?

In September, the average sunshine duration in Kuala Lumpur is 8.8h.

What is the month with the highest UV index in Kuala Lumpur?

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

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

The average daily maximum UV index in September in Kuala Lumpur, Malaysia, is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

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).
The 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%

The 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).
The 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).
The 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: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are June, July and September (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).

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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

The 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

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

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Kuala Lumpur, Malaysia

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