September weather forecastSantren, Indonesia

September

Weather in September

September, the first month of the spring in Santren, is also a moderately hot month, with an average temperature fluctuating between 27.2°C (81°F) and 19.1°C (66.4°F).

Temperature

The transition into September shows a subtle variation to a still warm 27.2°C (81°F) from August's 26.5°C (79.7°F) in the average high-temperature. Throughout September nights, Santren experiences a consistent temperature average of 19.1°C (66.4°F).

Heat index

In September, the average heat index is estimated at a hot 31°C (87.8°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 83%.

Rainfall

In Santren, in September, during 22.7 rainfall days, 108mm (4.25") of precipitation is typically accumulated. In Santren, Indonesia, during the entire year, the rain falls for 322.7 days and collects up to 3079mm (121.22") of precipitation.

Daylight

In Santren, the average length of the day in September 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 September, the average sunshine is 7.5h.

UV index

January through October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Updated: Aug 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in Santren, is 27.2°C (81°F) and the average low-temperature is 19.1°C (66.4°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is estimated at 31°C (87.8°F).

The months with the lowest humidity are September and October, with an average relative humidity of 83%.

In Santren, the average relative humidity in September is 83%.

In Santren, in September, it is raining for 22.7 days, with typically 108mm (4.25") of accumulated precipitation.

In September, the average day length 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.

In Santren, the average sunshine duration in September is 7.5h.

January through October and December, with an average maximum UV index of 6, are months with the highest UV index.

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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

26.5°C

27.2°C

27.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.9km/h

8.2km/h

7.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

4.8

1.7

Average UV index

Average cloud cover

53%

54%

Average visibility

7km

Average temperature in September
Santren, Indonesia

Average high temperature in September: 27.2°C

The warmest month (with the highest average high temperature) is October (27.8°C).
The month with the lowest average high temperature is July (25.9°C).

Average low temperature in September: 19.1°C

The month with the highest average low temperature is November (21.1°C).
The coldest month (with the lowest average low temperature) is August (18.3°C).

Average pressure in September
Santren, Indonesia

Average pressure in September: 1011.6mbar

The month with the highest atmospheric pressure is August (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

Average wind speed in September
Santren, Indonesia

Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is September (7.2km/h).
The calmest month (with the lowest average wind speed) is April (4.4km/h).

Average humidity in September
Santren, Indonesia

Average humidity in September: 83%

The month with the highest relative humidity is April (89%).
The months with the lowest relative humidity are September and October (83%).

Average rainfall in September
Santren, Indonesia

Average rainfall in September: 108mm

The wettest month (with the highest rainfall) is March (404mm).
The driest month (with the least rainfall) is August (66mm).

Average rainfall days in September
Santren, Indonesia

Average rainfall days in September: 22.7 days

The months with the highest number of rainy days are January and March (30.7 days).
The month with the least rainy days is August (21.1 days).

Average daylight in September /
Average sunshine in September
Santren, 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: 7h and 30min

The month with the most sunshine is August (Average sunshine: 7h and 36min).
The months with the least sunshine are November and December (Average sunshine: 6h and 0min).

Average sunshine days in September
Santren, Indonesia

Average sunshine days in September: 4.8 days

The months with the most sunshine days are July, August and September (4.8 days).
The month with the least sunshine days is March (0 days).

Average UV index in September
Santren, Indonesia

Average UV index in September: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 6).
The month with the lowest UV index is November (UV index 5).

Average cloud cover in September
Santren, Indonesia

Average cloud cover in September: 53

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are June, August and September (Cloud cover 53).

Average visibility in September
Santren, Indonesia

Average visibility in September: 7km

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