September weather forecastGandus, Indonesia

September

Weather in September

The first month of the spring, September, is also a hot month in Gandus, Indonesia, with an average temperature varying between 34°C (93.2°F) and 23°C (73.4°F).

Temperature

In the transition from August to September, Gandus reports an average high-temperature of a still tropical 34°C (93.2°F), indicating a close resemblance to the prior month. Gandus experiences an average temperature drop to a moderately hot 23°C (73.4°F) during September nights.

Heat index

The heat index for September is calculated to be a burning hot 48°C (118.4°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The least humid month is September, with an average relative humidity of 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 15.4 days and accumulates 40mm (1.57") of precipitation.

Daylight

In Gandus, the average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:02. On the last day of September, sunrise is at 05:47 and sunset at 17:55 WIB.

Sunshine

The month with the most sunshine is September, with an average of 9h of sunshine.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 during September translates into the following guidance:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

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

Frequently asked questions

The average high-temperature, in September, in Gandus, is 34°C (93.2°F), while the average low-temperature is 23°C (73.4°F). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 48°C (118.4°F).

The least humid month is September, with an average relative humidity of 73%.

In Gandus, the average relative humidity in September is 73%.

The month with the least rainfall is September, when the rain falls for 15.4 days and typically collects 40mm (1.57") of precipitation.

In Gandus, during September, the rain falls for 15.4 days and regularly aggregates up to 40mm (1.57") of precipitation.

In September, the average day length is 12h and 5min.

On the first day of September, sunrise is at 05:59 and sunset at 18:02. On the last day of the month, sunrise is at 05:47 and sunset at 17:55 WIB.

With an average of 9h of sunshine, September has the most sunshine of the year.

The average sunshine duration in September is 9h.

The months with the highest UV index in Gandus are February through December, with an average maximum UV index of 7.

In Gandus, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes 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

33°C

34°C

34.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.3km/h

6.7km/h

6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

8.6

11.7

9.9

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Gandus, Indonesia

Average high temperature in September: 34°C

The warmest month (with the highest average high temperature) is October (34.1°C).
The months with the lowest average high temperature are January, February and December (31.1°C).

Average low temperature in September: 23°C

The month with the highest average low temperature is November (24.4°C).
The coldest months (with the lowest average low temperature) are July and September (23°C).

Average pressure in September
Gandus, Indonesia

Average pressure in September: 1010.2mbar

The month with the highest atmospheric pressure is September (1010.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).

Average wind speed in September
Gandus, Indonesia

Average wind speed in September: 6.4km/h

The windiest month (with the highest average wind speed) is August (6.7km/h).
The calmest month (with the lowest average wind speed) is April (3.9km/h).

Average humidity in September
Gandus, Indonesia

Average humidity in September: 73%

The month with the highest relative humidity is April (85%).
The month with the lowest relative humidity is September (73%).

Average rainfall in September
Gandus, Indonesia

Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is April (170mm).
The driest month (with the least rainfall) is September (40mm).

Average rainfall days in September
Gandus, Indonesia

Average rainfall days in September: 15.4 days

The month with the highest number of rainy days is December (26.5 days).
The month with the least rainy days is September (15.4 days).

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

Average daylight in September: 12h and 6min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).

Average sunshine in September: 9h and 0min

The month with the most sunshine is September (Average sunshine: 9h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in September
Gandus, Indonesia

Average sunshine days in September: 11.7 days

The month with the most sunshine days is September (11.7 days).
The month with the least sunshine days is April (2.4 days).

Average UV index in September
Gandus, Indonesia

Average UV index in September: 7

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