September weather forecastLembang, Indonesia

September

Weather in September

September, the first month of the spring in Lembang, is still a warm month, with an average temperature ranging between max 27.3°C (81.1°F) and min 21.9°C (71.4°F).

Temperature

In the transition from August to September, Lembang reports an average high-temperature of a still warm 27.3°C (81.1°F), indicating a close resemblance to the prior month. An average minimum temperature of 21.9°C (71.4°F) is recorded in Lembang during the month of September.

Heat index

For September, the heat index is calculated to be a tropical 30°C (86°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Lembang, in September, during 16.8 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Lembang, during the entire year, the rain falls for 244.7 days and collects up to 1048mm (41.26") 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 05:49 and sunset at 17:49. On the last day of September, in Lembang, sunrise is at 05:34 and sunset at 17:44 WIB.

Sunshine

The average sunshine in September in Lembang is 9h.

UV index

The months with the lowest UV index in Lembang are May through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Updated: Jan 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Lembang, records 27.3°C (81.1°F), while the low-temperature is 21.9°C (71.4°F). 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, in September is calculated to be 30°C (86°F).

In September, the average relative humidity in Lembang is 80%.

In Lembang, Indonesia, during September, the rain falls for 16.8 days and regularly aggregates up to 34mm (1.34") of precipitation.

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

In September, on the first day of the month, sunrise is at 05:49 and sunset at 17:49. On the last day of the month, in Lembang, sunrise is at 05:34 and sunset at 17:44 WIB.

In September, the average sunshine duration in Lembang, Indonesia, is 9h.

The months with the lowest UV index are May through December, with an average maximum UV index of 6.

In Lembang, Indonesia, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat 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

26.9°C

27.3°C

27.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16.7km/h

15.9km/h

13.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

7.6

6.6

5.6

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Lembang, Indonesia

Average high temperature in September: 27.3°C

The warmest month (with the highest average high temperature) is March (28.5°C).
The months with the lowest average high temperature are July and August (26.9°C).

Average low temperature in September: 21.9°C

The months with the highest average low temperature are January and December (23.9°C).
The coldest month (with the lowest average low temperature) is August (21.6°C).

Average pressure in September
Lembang, Indonesia

Average pressure in September: 1011.8mbar

The month with the highest atmospheric pressure is September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009.4mbar).

Average wind speed in September
Lembang, Indonesia

Average wind speed in September: 14.7km/h

The windiest month (with the highest average wind speed) is August (15.6km/h).
The calmest month (with the lowest average wind speed) is April (8.9km/h).

Average humidity in September
Lembang, Indonesia

Average humidity in September: 80%

The months with the highest relative humidity are May, June, July and November (82%).
The month with the lowest relative humidity is January (78%).

Average rainfall in September
Lembang, Indonesia

Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is May (140mm).
The driest month (with the least rainfall) is August (25mm).

Average rainfall days in September
Lembang, Indonesia

Average rainfall days in September: 16.8 days

The month with the highest number of rainy days is November (23.6 days).
The month with the least rainy days is August (13.9 days).

Average daylight in September /
Average sunshine in September
Lembang, 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 0min

The month with the most sunshine is February (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 48min).

Average sunshine days in September
Lembang, Indonesia

Average sunshine days in September: 6.6 days

The months with the most sunshine days are January and August (7.6 days).
The month with the least sunshine days is May (4.4 days).

Average UV index in September
Lembang, Indonesia

Average UV index in September: 6

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

Average cloud cover in September
Lembang, Indonesia

Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in September
Lembang, 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).