September weather forecast
Tempel, Indonesia

September

Weather in September

The first month of the spring, September, is still a warm month in Tempel, Indonesia, with an average temperature ranging between max 28.4°C (83.1°F) and min 22.3°C (72.1°F).

Temperature

Tempel observes a minor difference in average high-temperatures between August's 27.9°C (82.2°F) and September's 28.4°C (83.1°F). Tempel's nights in September cool down to an average low-temperature of 22.3°C (72.1°F).

Heat index

September's heat index is evaluated at a hot 33°C (91.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

September and October, with an average relative humidity of 79%, are the least humid months.

Rainfall

In Tempel, in September, it is raining for 14.9 days, with typically 24mm (0.94") of accumulated precipitation. In Tempel, during the entire year, the rain falls for 246 days and collects up to 906mm (35.67") 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 05:39 and sunset at 17:37. On the last day of September, sunrise is at 05:23 and sunset at 17:33 WIB.

Sunshine

In Tempel, the average sunshine in September is 8.7h.

UV index

The months with the highest UV index are February through May, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. 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. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

Is it hot during September?
The high-temperature, in September, in Tempel, records 28.4°C (83.1°F), while the low-temperature is 22.3°C (72.1°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 33°C (91.4°F).
What are the least humid months?
September and October, with an average relative humidity of 79%, are the least humid months.
What is the average humidity in September?
In September, the average relative humidity is 79%.
How much does it rain in September?
In Tempel, in September, during 14.9 rainfall days, 24mm (0.94") of precipitation is typically accumulated.
How many hours of daylight does Tempel have in September?
In September, the average day length is 12h and 4min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 05:39 and sunset at 17:37. On the last day of the month, sunrise is at 05:23 and sunset at 17:33 WIB.
How long on average sun shines in September?
The average sunshine duration in September is 8.7h.
When is the highest UV index?
The months with the highest UV index are February through May, September through December, with an average maximum UV index of 7.
What is the UV index reading in September?
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes 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
Tempel, Indonesia
  • Average high temperature in September: 28.4°C

The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is July (27.8°C).

  • Average low temperature in September: 22.3°C

The months with the highest average low temperature are January and November (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.9°C).

Average pressure in September
Tempel, Indonesia
  • Average pressure in September: 1011.9mbar

The months with the highest atmospheric pressure are August and September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

Average wind speed in September
Tempel, Indonesia
  • Average wind speed in September: 13.3km/h

The windiest month (with the highest average wind speed) is August (14.5km/h).
The calmest month (with the lowest average wind speed) is March (8.4km/h).

Average humidity in September
Tempel, Indonesia
  • Average humidity in September: 79%

The months with the highest relative humidity are May and June (82%).
The months with the lowest relative humidity are September and October (79%).

Average rainfall in September
Tempel, Indonesia
  • Average rainfall in September: 24mm

The wettest month (with the highest rainfall) is January (126mm).
The driest month (with the least rainfall) is August (14mm).

Average rainfall days in September
Tempel, Indonesia
  • Average rainfall days in September: 14.9 days

The months with the highest number of rainy days are January, March and November (24.7 days).
The month with the least rainy days is August (11.4 days).

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

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is February (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in September
Tempel, Indonesia
  • Average sunshine days in September: 8.9 days

The month with the most sunshine days is August (11.6 days).
The month with the least sunshine days is November (3.4 days).

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

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

Average cloud cover in September
Tempel, Indonesia
  • Average cloud cover in September: 40

The months with the most cloud cover are January and December (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 35).

Average visibility in September
Tempel, 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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