September weather forecast
Bayan Lepas, Malaysia

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Weather in September

September in Bayan Lepas bears witness to cooler temperatures when compared to its preceding months. Tourists and residents alike find this month particularly welcoming. The city glistening under the 8.7 hours of daily sunshine offers a feast for the eyes. The shift in weather marks a distinct change, introducing a cooler yet dynamic cityscape. Heightened cloud coverage of 39% accompanies the rainy season, casting an ethereal glow over Bayan Lepas.

Temperature

September in Bayan Lepas observes an average high-temperature of a moderately hot 29.9°C (85.8°F), marking an insignificant difference from August's 30.6°C (87.1°F). Bayan Lepas registers a gentle descent to an average nighttime low of 25.3°C (77.5°F) in September from its daytime highs.

Heat index

In September, the heat index is computed to be a fiery hot 36°C (96.8°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
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 the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in September in Bayan Lepas is 76%.

Rainfall

In Bayan Lepas, in September, it is raining for 25.9 days, with typically 104mm (4.09") of accumulated precipitation. Throughout the year, there are 281.9 rainfall days, and 1180mm (46.46") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 9min.
On the first day of the month, sunrise is at 7:12 am and sunset at 7:25 pm. On the last day of September, in Bayan Lepas, sunrise is at 7:06 am and sunset at 7:11 pm +08.

Sunshine

In September, the average sunshine in Bayan Lepas is 8.7h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bayan Lepas. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 7 during September leads to these instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

How hot is it in Bayan Lepas in September?

Bayan Lepas in September has an average high-temperature of 29.9°C (85.8°F) and an average low-temperature of 25.3°C (77.5°F). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 36°C (96.8°F).

What is the average humidity in September in Bayan Lepas?

The average relative humidity in September in Bayan Lepas, Malaysia, is 76%.

How much does it rain in Bayan Lepas in September?

In Bayan Lepas, in September, during 25.9 rainfall days, 104mm (4.09") of precipitation is typically accumulated.

What is the average length of the day in September in Bayan Lepas?

The average day length in September in Bayan Lepas, Malaysia, is 12h and 9min.

When is the sunrise / sunset in September in Bayan Lepas?

On the first day of September in Bayan Lepas, Malaysia, sunrise is at 7:12 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 7:11 pm +08.

How long on average sun shines in September in Bayan Lepas?

The average sunshine duration in September in Bayan Lepas, Malaysia, is 8.7h.

What are the months with the highest UV index in Bayan Lepas?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Bayan Lepas.

When is the lowest UV index in Bayan Lepas?

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

How high is the UV index in September in Bayan Lepas?

In September, the average daily maximum UV index in Bayan Lepas, Malaysia, is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Bayan Lepas, Malaysia

Average temperature in September - Bayan Lepas, Malaysia
  • Average high temperature in September: 29.9°C

The warmest months (with the highest average high temperature) are May and June (31°C).
The month with the lowest average high temperature is December (29.3°C).

  • Average low temperature in September: 25.3°C

The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24.5°C).

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Average pressure in September
Bayan Lepas, Malaysia

Average pressure in September - Bayan Lepas, Malaysia
  • Average pressure in September: 1009.9mbar

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

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Average wind speed in September
Bayan Lepas, Malaysia

Average wind speed in September - Bayan Lepas, Malaysia
  • Average wind speed in September: 6.7km/h

The windiest month (with the highest average wind speed) is January (8.7km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).

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Average humidity in September
Bayan Lepas, Malaysia

Average humidity in September - Bayan Lepas, Malaysia
  • Average humidity in September: 76%

The months with the highest relative humidity are November and December (80%).
The months with the lowest relative humidity are June, July and August (75%).

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Average rainfall in September
Bayan Lepas, Malaysia

Average rainfall in September - Bayan Lepas, Malaysia
  • Average rainfall in September: 104mm

The wettest months (with the highest rainfall) are October and November (142mm).
The driest month (with the least rainfall) is February (52mm).

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Average rainfall days in September
Bayan Lepas, Malaysia

Average rainfall days in September - Bayan Lepas, Malaysia
  • Average rainfall days in September: 25.9 days

The month with the highest number of rainy days is October (26.6 days).
The month with the least rainy days is February (16.1 days).

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Average daylight in September /
Average sunshine in September
Bayan Lepas, Malaysia

Average daylight in September / Average sunshine in September - Bayan Lepas, Malaysia
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is February (Average sunshine: 9h and 18min).
The month with the least sunshine is November (Average sunshine: 7h and 54min).

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Average sunshine days in September
Bayan Lepas, Malaysia

Average sunshine days in September - Bayan Lepas, Malaysia
  • Average sunshine days in September: 3.2 days

The month with the most sunshine days is February (9.3 days).
The month with the least sunshine days is October (3 days).

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Average UV index in September
Bayan Lepas, Malaysia

Average UV index in September - Bayan Lepas, Malaysia
  • Average UV index in September: 7

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

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Average cloud cover in September
Bayan Lepas, Malaysia

Average cloud cover in September - Bayan Lepas, Malaysia
  • Average cloud cover in September: 39

The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 27).

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Average visibility in September
Bayan Lepas, Malaysia

Average visibility in September - Bayan Lepas, Malaysia
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Bayan Lepas, Malaysia

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