September weather forecast
Rangkah, Indonesia

September

Weather in September

The first month of the spring, September, is still a tropical month in Rangkah, Indonesia, with temperature in the range of an average low of 22.4°C (72.3°F) and an average high of 33.6°C (92.5°F).

Temperature

The advent of September brings an average high-temperature of a still tropical 33.6°C (92.5°F), exhibiting minor difference from the previous month. Rangkah, during the nights of September, experiences an average temperature drop to an agreeable 22.4°C (72.3°F).

Heat index

September's average heat index is evaluated at a blistering 42°C (107.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 62%.

Rainfall

In September, the rain falls for 5.2 days. Throughout September, 12mm (0.47") of precipitation is accumulated. In Rangkah, during the entire year, the rain falls for 218.1 days and collects up to 1410mm (55.51") of precipitation.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:29 and sunset at 17:28. On the last day of September, sunrise is at 05:13 and sunset at 17:23 WIB.

Sunshine

August through October, with an average of 9.7h of sunshine, are months with the most sunshine in Rangkah.

UV index

February, April 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 risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

How hot is it in September?
The high-temperature in Rangkah during September is 33.6°C (92.5°F) and the low-temperature is 22.4°C (72.3°F). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 42°C (107.6°F).
What is the least humid month?
September and October, with an average relative humidity of 62%, are the least humid months.
What is the average humidity in September?
In Rangkah, the average relative humidity in September is 62%.
How much does it rain in September?
In September, the rain falls for 5.2 days. Throughout September, 12mm (0.47") of precipitation is accumulated.
How many hours of daylight does Rangkah have in September?
In September, the average day length is 12h and 4min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 05:29 and sunset at 17:28. On the last day of the month, sunrise is at 05:13 and sunset at 17:23 WIB.
What are the months with the most sunshine?
August through October, with an average of 9.7h of sunshine, are months with the most sunshine.
How long on average sun shines in September?
In Rangkah, Indonesia, the average sunshine duration in September is 9.7h.
When is the highest UV index?
February, April through December, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index intensity in September?
In Rangkah, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from 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
Rangkah, Indonesia
  • Average high temperature in September: 33.6°C

The warmest month (with the highest average high temperature) is October (34.6°C).
The month with the lowest average high temperature is February (30.1°C).

  • Average low temperature in September: 22.4°C

The month with the highest average low temperature is November (24.9°C).
The coldest months (with the lowest average low temperature) are July and August (21.8°C).

Average pressure in September
Rangkah, Indonesia
  • Average pressure in September: 1011.4mbar

The months with the highest atmospheric pressure are August and September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).

Average wind speed in September
Rangkah, Indonesia
  • Average wind speed in September: 7.7km/h

The windiest month (with the highest average wind speed) is September (7.7km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).

Average humidity in September
Rangkah, Indonesia
  • Average humidity in September: 62%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are September and October (62%).

Average rainfall in September
Rangkah, Indonesia
  • Average rainfall in September: 12mm

The wettest month (with the highest rainfall) is February (273mm).
The driest month (with the least rainfall) is August (6mm).

Average rainfall days in September
Rangkah, Indonesia
  • Average rainfall days in September: 5.2 days

The month with the highest number of rainy days is January (30.1 days).
The month with the least rainy days is August (4 days).

Average daylight in September /
Average sunshine in September
Rangkah, Indonesia
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in September: 9h and 4min

The months with the most sunshine are August, September and October (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).

Average sunshine days in September
Rangkah, Indonesia
  • Average sunshine days in September: 23.8 days

The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is February (0.3 days).

Average UV index in September
Rangkah, Indonesia
  • Average UV index in September: 7

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

Average cloud cover in September
Rangkah, Indonesia
  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 17).

Average visibility in September
Rangkah, Indonesia
  • Average visibility in September: 10km

The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and March (8km).

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