September weather forecastSipalasa, Indonesia

September

Weather in September

The first month of the spring, September, is still a tropical month in Sipalasa, Indonesia, with temperature in the range of an average high of 31.3°C (88.3°F) and an average low of 22.6°C (72.7°F).

Temperature

Welcoming September, Sipalasa notes an average high-temperature of a still tropical 31.3°C (88.3°F), nearly consistent with August's 30.5°C (86.9°F). Sipalasa in September anticipates an average nighttime temperature of 22.6°C (72.7°F).

Heat index

September's average heat index is appraised at a fiery hot 38°C (100.4°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

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

Rainfall

In September, in Sipalasa, the rain falls for 9.5 days. Throughout September, 18mm (0.71") of precipitation is accumulated. Throughout the year, in Sipalasa, there are 222.3 rainfall days, and 950mm (37.4") of precipitation is accumulated.

Daylight

In Sipalasa, Indonesia, the average length of the day in September is 12h and 4min.
On the first day of September in Sipalasa, sunrise is at 05:46 and sunset at 17:45. On the last day of the month, sunrise is at 05:30 and sunset at 17:40 WIB.

Sunshine

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

UV index

The months with the highest UV index in Sipalasa 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 value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

In September, the average high-temperature and low-temperature in Sipalasa, Indonesia, are 31.3°C (88.3°F) and 22.6°C (72.7°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is appraised at 38°C (100.4°F).

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

In Sipalasa, the average relative humidity in September is 69%.

In Sipalasa, during September, the rain falls for 9.5 days and regularly aggregates up to 18mm (0.71") of precipitation.

The average day length in September in Sipalasa is 12h and 4min.

In September, on the first day of the month, sunrise is at 05:46 and sunset at 17:45. On the last day of the month, in Sipalasa, sunrise is at 05:30 and sunset at 17:40 WIB.

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

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

January through December, with an average maximum UV index of 7, are months with the highest UV index in Sipalasa, Indonesia.

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

The average daily maximum UV index in September in Sipalasa, Indonesia, 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Sipalasa, Indonesia

  • Average high temperature in September: 31.3°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: 22.6°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
Sipalasa, Indonesia

  • Average pressure in September: 1011.4mbar

The month with the highest atmospheric pressure is September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Sipalasa, Indonesia

  • Average wind speed in September: 12.2km/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
Sipalasa, 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
Sipalasa, 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
Sipalasa, Indonesia

  • Average rainfall days in September: 9.5 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
Sipalasa, 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 12min).

Average sunshine days in September
Sipalasa, Indonesia

  • Average sunshine days in September: 17.8 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
Sipalasa, 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
Sipalasa, Indonesia

  • Average cloud cover in September: 19

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
Sipalasa, 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).