September weather forecastKleak, Indonesia

September

Weather in September

The first month of the autumn, September, is still a tropical month in Kleak, Indonesia, with temperature in the range of an average low of 24°C (75.2°F) and an average high of 30.4°C (86.7°F).

Temperature

September's advent notes a subtle adjustment in average high-temperature to a still hot 30.4°C (86.7°F) from August. An average minimum temperature of 24°C (75.2°F) marks the month of September.

Heat index

The heat index for September is computed to be a torrid 38°C (100.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

With an average relative humidity of 76%, September is the least humid month.

Rainfall

September is the month with the least rainfall in Kleak. Rain falls for 19.5 days and accumulates 69mm (2.72") of precipitation.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 05:36 and sunset at 17:44. On the last day of September, in Kleak, sunrise is at 05:27 and sunset at 17:33 WITA.

Sunshine

The month with the most sunshine is September, with an average of 9.3h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

In September, the average high-temperature and low-temperature are 30.4°C (86.7°F) and 24°C (75.2°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 38°C (100.4°F).

The least humid month is September, with an average relative humidity of 76%.

The average relative humidity in September in Kleak is 76%.

September is the month with the least rainfall. Rain falls for 19.5 days and accumulates 69mm (2.72") of precipitation.

In September, in Kleak, the rain falls for 19.5 days. Throughout September, 69mm (2.72") of precipitation is accumulated.

In Kleak, the average day length in September is 12h and 7min.

On the first day of September, sunrise is at 05:36 and sunset at 17:44. On the last day of the month, sunrise is at 05:27 and sunset at 17:33 WITA.

September has the most sunshine of the year, with an average of 9.3h of sunshine.

In Kleak, the average sunshine duration in September is 9.3h.

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.

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kleak, Indonesia

  • Average high temperature in September: 30.4°C

The warmest month (with the highest average high temperature) is October (30.5°C).
The month with the lowest average high temperature is February (28.1°C).

  • Average low temperature in September: 24°C

The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is March (23.8°C).

Average pressure in September
Kleak, Indonesia

  • Average pressure in September: 1010.1mbar

The month with the highest atmospheric pressure is September (1010.1mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).

Average wind speed in September
Kleak, Indonesia

  • Average wind speed in September: 5.7km/h

The windiest month (with the highest average wind speed) is February (8.2km/h).
The calmest month (with the lowest average wind speed) is May (5.3km/h).

Average humidity in September
Kleak, Indonesia

  • Average humidity in September: 76%

The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is September (76%).

Average rainfall in September
Kleak, Indonesia

  • Average rainfall in September: 69mm

The wettest month (with the highest rainfall) is June (161mm).
The driest month (with the least rainfall) is September (69mm).

Average rainfall days in September
Kleak, Indonesia

  • Average rainfall days in September: 19.5 days

The month with the highest number of rainy days is May (28.3 days).
The month with the least rainy days is September (19.5 days).

Average daylight in September /
Average sunshine in September
Kleak, Indonesia

  • Average daylight in September: 12h and 6min

The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).

  • Average sunshine in September: 9h and 18min

The month with the most sunshine is September (Average sunshine: 9h and 18min).
The months with the least sunshine are January and February (Average sunshine: 7h and 36min).

Average sunshine days in September
Kleak, Indonesia

  • Average sunshine days in September: 8 days

The month with the most sunshine days is August (8.6 days).
The month with the least sunshine days is November (1 days).

Average UV index in September
Kleak, 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
Kleak, Indonesia

  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in September
Kleak, 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).