September weather forecast
Long Merarap, Malaysia

September

Weather in September

September, the first month of the autumn in Long Merarap, is still a warm month, with temperature in the range of an average high of 29.9°C (85.8°F) and an average low of 22.6°C (72.7°F).

Temperature

The introduction of September notes a subtle temperature variation to a moderately hot 29.9°C (85.8°F) from August's 30.2°C (86.4°F). In September, the recorded average low-temperature in Long Merarap is a pleasant 22.6°C (72.7°F).

Heat index

The average heat index in September is evaluated at a torrid 37°C (98.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
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. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The months with the lowest humidity in Long Merarap are August and September, with an average relative humidity of 79%.

Rainfall

In Long Merarap, in September, it is raining for 27 days, with typically 140mm (5.51") of accumulated precipitation. Throughout the year, in Long Merarap, there are 306.3 rainfall days, and 1848mm (72.76") of precipitation is accumulated.

Daylight

In September, the average length of the day in Long Merarap is 12h and 8min.
On the first day of September in Long Merarap, sunrise is at 6:12 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:10 pm +08.

Sunshine

The month with the most sunshine in Long Merarap is September, with an average of 8.8h of sunshine.

UV index

February through April, July through December, with an average maximum UV index of 7, are months with the highest UV index in Long Merarap. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. 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 best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

Is it hot in Long Merarap during September?
The average high-temperature and low-temperature in Long Merarap during September are 29.9°C (85.8°F) and 22.6°C (72.7°F) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is evaluated at 37°C (98.6°F).
What is the least humid month in Long Merarap?
The months with the lowest humidity in Long Merarap, Malaysia, are August and September, with an average relative humidity of 79%.
What is the average humidity in September in Long Merarap?
The average relative humidity in September in Long Merarap is 79%.
How many days does it rain in September in Long Merarap?
In Long Merarap, Malaysia, during September, the rain falls for 27 days and regularly aggregates up to 140mm (5.51") of precipitation.
How many hours of daylight does Long Merarap have in September?
The average day length in September in Long Merarap, Malaysia, is 12h and 8min.
What time are sunrise and sunset in September in Long Merarap?
In September, on the first day of the month, sunrise is at 6:12 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:10 pm +08.
What month has the most sunshine in Long Merarap?
With an average of 8.8h of sunshine, September has the most sunshine of the year in Long Merarap, Malaysia.
How many hours of sunshine does Long Merarap have in September?
In Long Merarap, the average sunshine duration in September is 8.8h.
When is the highest UV index in Long Merarap?
The months with the highest UV index in Long Merarap, Malaysia, are February through April, July through December, with an average maximum UV index of 7.
What is the UV index intensity in September in Long Merarap?
The average daily maximum UV index in September in Long Merarap, Malaysia, is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Long Merarap, Malaysia
  • Average high temperature in September: 29.9°C

The warmest month (with the highest average high temperature) is May (30.3°C).
The month with the lowest average high temperature is January (28.8°C).

  • Average low temperature in September: 22.6°C

The month with the highest average low temperature is May (23.2°C).
The coldest month (with the lowest average low temperature) is March (21.9°C).

Average pressure in September
Long Merarap, Malaysia
  • Average pressure in September: 1010.4mbar

The month with the highest atmospheric pressure is February (1010.8mbar).
The months with the lowest atmospheric pressure are November and December (1009.5mbar).

Average wind speed in September
Long Merarap, Malaysia
  • Average wind speed in September: 5.7km/h

The windiest months (with the highest average wind speed) are July and August (5.9km/h).
The calmest months (with the lowest average wind speed) are April, May and November (5.3km/h).

Average humidity in September
Long Merarap, Malaysia
  • Average humidity in September: 79%

The months with the highest relative humidity are January, March, April and December (84%).
The months with the lowest relative humidity are August and September (79%).

Average rainfall in September
Long Merarap, Malaysia
  • Average rainfall in September: 140mm

The wettest month (with the highest rainfall) is June (187mm).
The driest month (with the least rainfall) is February (79mm).

Average rainfall days in September
Long Merarap, Malaysia
  • Average rainfall days in September: 27 days

The month with the highest number of rainy days is May (28.4 days).
The month with the least rainy days is February (18.2 days).

Average daylight in September /
Average sunshine in September
Long Merarap, 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 54min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).

Average sunshine days in September
Long Merarap, Malaysia
  • Average sunshine days in September: 2.5 days

The month with the most sunshine days is February (8.2 days).
The month with the least sunshine days is November (1.8 days).

Average UV index in September
Long Merarap, Malaysia
  • Average UV index in September: 7

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

Average cloud cover in September
Long Merarap, Malaysia
  • Average cloud cover in September: 38

The month with the most cloud cover is November (Cloud cover 44).
The months with the least cloud cover are February, August and September (Cloud cover 38).

Average visibility in September
Long Merarap, Malaysia
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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