September weather forecastRantauprapat, Indonesia

September

Weather in September

The first month of the autumn, September, is still a hot month in Rantauprapat, Indonesia, with an average temperature varying between 31.9°C (89.4°F) and 22°C (71.6°F).

Temperature

Rantauprapat experiences a transition to a still hot 31.9°C (89.4°F) in average high-temperatures with the arrival of September, not greatly differing from August's 32.5°C (90.5°F). An average low-temperature of 22°C (71.6°F) is noted during the nights in September.

Heat index

The heat index in September is calculated to be a scorching 44°C (111.2°F). Mindful: Heat cramps and heat exhaustion are to be expected. Extended physical effort might result in heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In September, the average relative humidity is 81%.

Rainfall

In September, the rain falls for 27 days. Throughout September, 132mm (5.2") of precipitation is accumulated. Throughout the year, there are 316.5 rainfall days, and 1785mm (70.28") of precipitation is accumulated.

Daylight

In Rantauprapat, the average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 06:16 and sunset at 18:25. On the last day of the month, sunrise is at 06:07 and sunset at 18:13 WIB.

Sunshine

The average sunshine in September in Rantauprapat is 8.3h.

UV index

The months with the lowest UV index are January, February, April, September through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Updated: Aug 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, in Rantauprapat, the average high-temperature is 31.9°C (89.4°F), and the average low-temperature is 22°C (71.6°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 44°C (111.2°F).

In September, the average relative humidity is 81%.

In Rantauprapat, in September, during 27 rainfall days, 132mm (5.2") of precipitation is typically accumulated.

In September, the average day length is 12h and 8min.

In September, on the first day of the month, sunrise is at 06:16 and sunset at 18:25. On the last day of the month, sunrise is at 06:07 and sunset at 18:13 WIB.

In Rantauprapat, the average sunshine duration in September is 8.3h.

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

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

32.5°C

31.9°C

31.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.5km/h

4.1km/h

4.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

4.4

2.5

3.4

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Rantauprapat, Indonesia

Average high temperature in September: 31.9°C

The warmest month (with the highest average high temperature) is June (32.7°C).
The month with the lowest average high temperature is December (29.6°C).

Average low temperature in September: 22°C

The month with the highest average low temperature is May (22.6°C).
The coldest month (with the lowest average low temperature) is January (21.7°C).

Average pressure in September
Rantauprapat, Indonesia

Average pressure in September: 1010.4mbar

The month with the highest atmospheric pressure is January (1010.6mbar).
The month with the lowest atmospheric pressure is May (1009.4mbar).

Average wind speed in September
Rantauprapat, Indonesia

Average wind speed in September: 3.9km/h

The windiest month (with the highest average wind speed) is June (4.3km/h).
The calmest month (with the lowest average wind speed) is November (3.6km/h).

Average humidity in September
Rantauprapat, Indonesia

Average humidity in September: 81%

The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are June and July (79%).

Average rainfall in September
Rantauprapat, Indonesia

Average rainfall in September: 132mm

The wettest month (with the highest rainfall) is October (195mm).
The driest month (with the least rainfall) is July (95mm).

Average rainfall days in September
Rantauprapat, Indonesia

Average rainfall days in September: 27 days

The month with the highest number of rainy days is April (28.4 days).
The month with the least rainy days is June (22.3 days).

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

Average daylight in September: 12h and 6min

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

Average sunshine in September: 8h and 18min

The month with the most sunshine is June (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in September
Rantauprapat, Indonesia

Average sunshine days in September: 2.5 days

The month with the most sunshine days is July (6.6 days).
The month with the least sunshine days is April (1 days).

Average UV index in September
Rantauprapat, Indonesia

Average UV index in September: 6

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