September weather forecast
Cisauk, Indonesia

September

Weather in September

September, the first month of the spring in Cisauk, is still a hot month, with an average temperature varying between 24.3°C (75.7°F) and 31.2°C (88.2°F).

Temperature

In September, Cisauk experiences a minor shift in meteorological conditions with average high-temperatures marked at a still tropical 31.2°C (88.2°F), closely mirroring the climate in August. Throughout the month of September, Cisauk expects an average low of 24.3°C (75.7°F).

Heat index

September's heat index is computed to be a sweltering 38°C (100.4°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Heat index determinations are made taking into account the shade and light air movements. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 69%.

Rainfall

In Cisauk, in September, it is raining for 15.1 days, with typically 45mm (1.77") of accumulated precipitation. Throughout the year, there are 257.1 rainfall days, and 991mm (39.02") of precipitation is accumulated.

Daylight

In Cisauk, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:53 and sunset at 17:53. On the last day of September, sunrise is at 05:38 and sunset at 17:48 WIB.

Sunshine

The average sunshine in September is 9.6h.

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 in Cisauk. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

How hot is it in September?
The average high-temperature, in September, in Cisauk, is 31.2°C (88.2°F), while the average low-temperature is 24.3°C (75.7°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 38°C (100.4°F).
What is the average humidity in September?
In September, the average relative humidity is 69%.
How many days does it rain in September?
In September, the rain falls for 15.1 days. Throughout September, 45mm (1.77") of precipitation is accumulated.
How many hours of daylight does Cisauk have in September?
The average day length in September is 12h and 4min.
What time are sunrise and sunset in September in Cisauk?
In September, on the first day of the month, sunrise is at 05:53 and sunset at 17:53. On the last day of the month, sunrise is at 05:38 and sunset at 17:48 WIB.
How many hours of sunshine does Cisauk have in September?
In Cisauk, the average sunshine duration in September is 9.6h.
What are the months with the highest UV index in Cisauk?
January through December, with an average maximum UV index of 7, are months with the highest UV index in Cisauk.
When is the lowest UV index?
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 Cisauk, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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 - Cisauk, Indonesia
Average temperature in September
Cisauk, Indonesia
  • Average high temperature in September: 31.2°C

The warmest month (with the highest average high temperature) is October (31.8°C).
The month with the lowest average high temperature is February (29.6°C).

  • Average low temperature in September: 24.3°C

The month with the highest average low temperature is November (25.8°C).
The coldest month (with the lowest average low temperature) is July (24°C).

Average pressure in September - Cisauk, Indonesia
Average pressure in September
Cisauk, Indonesia
  • Average pressure in September: 1011.1mbar

The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

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

The windiest month (with the highest average wind speed) is January (11.2km/h).
The calmest month (with the lowest average wind speed) is November (7.5km/h).

Average humidity in September - Cisauk, Indonesia
Average humidity in September
Cisauk, Indonesia
  • Average humidity in September: 69%

The months with the highest relative humidity are February and March (76%).
The month with the lowest relative humidity is October (68%).

Average rainfall in September - Cisauk, Indonesia
Average rainfall in September
Cisauk, Indonesia
  • Average rainfall in September: 45mm

The wettest month (with the highest rainfall) is March (119mm).
The driest month (with the least rainfall) is August (36mm).

Average rainfall days in September - Cisauk, Indonesia
Average rainfall days in September
Cisauk, Indonesia
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is March (26.4 days).
The month with the least rainy days is August (12.5 days).

Average daylight in September / Average sunshine in September - Cisauk, Indonesia
Average daylight in September /
Average sunshine in September
Cisauk, 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 48min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is March (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).

Average sunshine days in September - Cisauk, Indonesia
Average sunshine days in September
Cisauk, Indonesia
  • Average sunshine days in September: 11.1 days

The month with the most sunshine days is August (15.2 days).
The month with the least sunshine days is February (2.6 days).

Average UV index in September - Cisauk, Indonesia
Average UV index in September
Cisauk, Indonesia
  • 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 - Cisauk, Indonesia
Average cloud cover in September
Cisauk, Indonesia
  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in September - Cisauk, Indonesia
Average visibility in September
Cisauk, Indonesia
  • 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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