September weather forecastNgrangsan, Indonesia

September

Weather in September

September, the first month of the spring in Ngrangsan, is also a moderately hot month, with an average temperature ranging between min 21.3°C (70.3°F) and max 28.5°C (83.3°F).

Temperature

As August transitions into September, Ngrangsan records an average high-temperature of a still moderately hot 28.5°C (83.3°F), showing a gentle shift from the preceding month. In Ngrangsan, in September, the average low-temperature is an agreeable 21.3°C (70.3°F).

Heat index

In September, the average heat index is computed to be a tropical 33°C (91.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

September and October, with an average relative humidity of 80%, are the least humid months.

Rainfall

In Ngrangsan, in September, it is raining for 17.1 days, with typically 52mm (2.05") of accumulated precipitation. Throughout the year, there are 293.9 rainfall days, and 1749mm (68.86") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of September, 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.

Sunshine

In Ngrangsan, the average sunshine in September is 8.8h.

UV index

The months with the lowest UV index are January, April through September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Updated: Jul 16, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Ngrangsan, records 28.5°C (83.3°F), while the low-temperature is 21.3°C (70.3°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 33°C (91.4°F).

The months with the lowest humidity are September and October, with an average relative humidity of 80%.

The average relative humidity in September is 80%.

In September, the rain falls for 17.1 days. Throughout September, 52mm (2.05") of precipitation is accumulated.

In Ngrangsan, the average day length in September is 12h and 4min.

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.

In Ngrangsan, the average sunshine duration in September is 8.8h.

The months with the lowest UV index are January, April through September, November and December, with an average maximum UV index of 6.

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

28°C

28.5°C

29.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.5km/h

12.3km/h

12.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

11.1

7.5

3.3

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Ngrangsan, Indonesia

Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is October (29.3°C).
The month with the lowest average high temperature is July (27.7°C).

Average low temperature in September: 21.3°C

The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).

Average pressure in September
Ngrangsan, Indonesia

Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009mbar).

Average wind speed in September
Ngrangsan, Indonesia

Average wind speed in September: 11.2km/h

The windiest month (with the highest average wind speed) is August (11.6km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).

Average humidity in September
Ngrangsan, Indonesia

Average humidity in September: 80%

The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (80%).

Average rainfall in September
Ngrangsan, Indonesia

Average rainfall in September: 52mm

The wettest month (with the highest rainfall) is March (236mm).
The driest month (with the least rainfall) is August (29mm).

Average rainfall days in September
Ngrangsan, Indonesia

Average rainfall days in September: 17.1 days

The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.8 days).

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

Average daylight in September: 12h and 6min

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 48min

The month with the most sunshine is February (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in September
Ngrangsan, Indonesia

Average sunshine days in September: 7.5 days

The month with the most sunshine days is August (11.1 days).
The months with the least sunshine days are January and February (0.4 days).

Average UV index in September
Ngrangsan, Indonesia

Average UV index in September: 6

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

Average cloud cover in September
Ngrangsan, Indonesia

Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July and August (Cloud cover 38).

Average visibility in September
Ngrangsan, Indonesia

Average visibility in September: 10km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).