September weather forecast
Batu Berendam, Malaysia

September

Weather in September

With the arrival of September in Batu Berendam, weather patterns shift slightly. Rainfall levels are at a lower quantity of 66mm (2.6") and are spread over around 25 rainy days. Sunshine continues to pour down for approximately 9 hours per day, maintaining balance with the steady 12-hour daylight. Though wind speeds are slightly lower, gusts of up to 11.1km/h (6.9mph) show a slight increase from the previous month. Amidst these slight fluctuations, pressure levels remain steady at 1009.6mb.

Temperature

September commences with an average high-temperature of a still hot 30.8°C (87.4°F), showing little deviation from August's 31.1°C (88°F). During the September nights, an average temperature of 25.2°C (77.4°F) is observed.

Heat index

The heat index value during September is calculated to be a fiery hot 38°C (100.4°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The months with the lowest humidity are August through October, with an average relative humidity of 74%.

Rainfall

In Batu Berendam, in September, during 24.8 rainfall days, 66mm (2.6") of precipitation is typically accumulated. In Batu Berendam, during the entire year, the rain falls for 299.5 days and collects up to 1046mm (41.18") of precipitation.

Daylight

The average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 7:06 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:03 pm +08.

Sunshine

With an average of 9.1h of sunshine, September has the most sunshine of the year.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

How hot is it in September?
During September, Batu Berendam experiences an average high-temperature of 30.8°C (87.4°F) and a low-temperature of 25.2°C (77.4°F). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in September is calculated to be 38°C (100.4°F).
What are the least humid months?
August through October, with an average relative humidity of 74%, are the least humid months.
What is the average humidity in September?
In September, the average relative humidity is 74%.
How much does it rain in September?
In Batu Berendam, in September, during 24.8 rainfall days, 66mm (2.6") of precipitation is typically accumulated.
How many hours of daylight does Batu Berendam have in September?
In Batu Berendam, the average day length in September is 12h and 8min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 7:06 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:03 pm +08.
What month has the most sunshine?
September has the most sunshine of the year, with an average of 9.1h of sunshine.
How long on average sun shines in September?
The average sunshine duration in September is 9.1h.
What is the month with the highest UV index?
The months with the highest UV index are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index?
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
What is the UV index reading in September?
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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 - Batu Berendam, Malaysia
Average temperature in September
Batu Berendam, Malaysia
  • Average high temperature in September: 30.8°C

The warmest months (with the highest average high temperature) are March, April, May and October (31.3°C).
The month with the lowest average high temperature is January (30°C).

  • Average low temperature in September: 25.2°C

The month with the highest average low temperature is May (26.1°C).
The coldest month (with the lowest average low temperature) is January (24.2°C).

Average pressure in September - Batu Berendam, Malaysia
Average pressure in September
Batu Berendam, Malaysia
  • Average pressure in September: 1009.6mbar

The months with the highest atmospheric pressure are January and February (1010.3mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

Average wind speed in September - Batu Berendam, Malaysia
Average wind speed in September
Batu Berendam, Malaysia
  • Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest months (with the lowest average wind speed) are April and May (6.8km/h).

Average humidity in September - Batu Berendam, Malaysia
Average humidity in September
Batu Berendam, Malaysia
  • Average humidity in September: 74%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in September - Batu Berendam, Malaysia
Average rainfall in September
Batu Berendam, Malaysia
  • Average rainfall in September: 66mm

The wettest month (with the highest rainfall) is November (140mm).
The driest month (with the least rainfall) is February (57mm).

Average rainfall days in September - Batu Berendam, Malaysia
Average rainfall days in September
Batu Berendam, Malaysia
  • Average rainfall days in September: 24.8 days

The month with the highest number of rainy days is December (28.5 days).
The month with the least rainy days is February (18.6 days).

Average daylight in September / Average sunshine in September - Batu Berendam, Malaysia
Average daylight in September /
Average sunshine in September
Batu Berendam, 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: 12h and 0min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 42min).

Average sunshine days in September - Batu Berendam, Malaysia
Average sunshine days in September
Batu Berendam, Malaysia
  • Average sunshine days in September: 3.6 days

The month with the most sunshine days is February (8.2 days).
The month with the least sunshine days is November (1.3 days).

Average UV index in September - Batu Berendam, Malaysia
Average UV index in September
Batu Berendam, 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).

Average cloud cover in September - Batu Berendam, Malaysia
Average cloud cover in September
Batu Berendam, Malaysia
  • Average cloud cover in September: 34

The months with the most cloud cover are November and December (Cloud cover 47).
The months with the least cloud cover are June and July (Cloud cover 33).

Average visibility in September - Batu Berendam, Malaysia
Average visibility in September
Batu Berendam, 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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