September weather forecastSetu Kulon, Indonesia

September

Weather in September

The first month of the spring, September, is also a hot month in Setu Kulon, Indonesia, with an average temperature ranging between min 22.8°C (73°F) and max 31.4°C (88.5°F).

Temperature

Setu Kulon's September showcases an average high-temperature of a still tropical 31.4°C (88.5°F), hardly distinct from August's 30.5°C (86.9°F). Setu Kulon's average low-temperature in September is measured at a pleasant 22.8°C (73°F).

Heat index

September's average heat index is appraised at a torrid 38°C (100.4°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to 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, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the lowest humidity in Setu Kulon are September and October, with an average relative humidity of 69%.

Rainfall

In Setu Kulon, during September, the rain falls for 9.8 days and regularly aggregates up to 18mm (0.71") of precipitation. Throughout the year, there are 222.6 rainfall days, and 950mm (37.4") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:46 and sunset at 17:45. On the last day of September, in Setu Kulon, sunrise is at 05:31 and sunset at 17:40 WIB.

Sunshine

August and September, with an average of 9.7h of sunshine, are months with the most sunshine.

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. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

In Setu Kulon, 31.4°C (88.5°F) is the average high-temperature and 22.8°C (73°F) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 38°C (100.4°F).

The months with the lowest humidity in Setu Kulon are September and October, with an average relative humidity of 69%.

In September, the average relative humidity is 69%.

In Setu Kulon, Indonesia, during September, the rain falls for 9.8 days and regularly aggregates up to 18mm (0.71") of precipitation.

In September, the average day length in Setu Kulon, Indonesia, is 12h and 4min.

On the first day of September in Setu Kulon, sunrise is at 05:46 and sunset at 17:45. On the last day of the month, sunrise is at 05:31 and sunset at 17:40 WIB.

August and September, with an average of 9.7h of sunshine, are months with the most sunshine in Setu Kulon.

In September, the average sunshine duration in Setu Kulon, Indonesia, is 9.7h.

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 Setu Kulon.

In Setu Kulon, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Setu Kulon, Indonesia

  • Average high temperature in September: 31.4°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 (29.4°C).

  • Average low temperature in September: 22.8°C

The months with the highest average low temperature are November and December (25°C).
The coldest month (with the lowest average low temperature) is August (22.2°C).

Average pressure in September
Setu Kulon, Indonesia

  • Average pressure in September: 1011.3mbar

The month with the highest atmospheric pressure is September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Setu Kulon, Indonesia

  • Average wind speed in September: 12.3km/h

The windiest month (with the highest average wind speed) is August (12.7km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).

Average humidity in September
Setu Kulon, Indonesia

  • Average humidity in September: 69%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are September and October (69%).

Average rainfall in September
Setu Kulon, Indonesia

  • Average rainfall in September: 18mm

The wettest month (with the highest rainfall) is December (146mm).
The driest month (with the least rainfall) is August (10mm).

Average rainfall days in September
Setu Kulon, Indonesia

  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is December (25.5 days).
The month with the least rainy days is August (6.5 days).

Average daylight in September /
Average sunshine in September
Setu Kulon, Indonesia

  • Average daylight in September: 12h and 6min

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 42min

The months with the most sunshine are August and September (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 8h and 18min).

Average sunshine days in September
Setu Kulon, Indonesia

  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is December (3.5 days).

Average UV index in September
Setu Kulon, 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
Setu Kulon, Indonesia

  • Average cloud cover in September: 20

The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in September
Setu Kulon, 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).