September weather forecastRatujaya, Indonesia

September

Weather in September

September, the first month of the spring in Ratujaya, is still a hot month, with an average temperature ranging between max 31.5°C (88.7°F) and min 23.5°C (74.3°F).

Temperature

A minor adjustment in Ratujaya's average high-temperature is noted with the start of September, touching a still hot 31.5°C (88.7°F) from August's 31.3°C (88.3°F). Ratujaya experiences an average low-temperature reading of 23.5°C (74.3°F) throughout September.

Heat index

The heat index value during September is evaluated at a very hot 38°C (100.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Realize that the values for the heat index are set for shaded places and light winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

September and October, with an average relative humidity of 68%, are the least humid months.

Rainfall

In Ratujaya, in September, during 16.7 rainfall days, 65mm (2.56") of precipitation is typically accumulated. Throughout the year, there are 288.9 rainfall days, and 1568mm (61.73") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of September, sunrise is at 05:52 and sunset at 17:52. On the last day of the month, sunrise is at 05:37 and sunset at 17:47 WIB.

Sunshine

The average sunshine in September is 9.4h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 in September translates into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

The high-temperature during September is 31.5°C (88.7°F) and the low-temperature is 23.5°C (74.3°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in September is evaluated at 38°C (100.4°F).

September and October, with an average relative humidity of 68%, are the least humid months.

In September, the average relative humidity is 68%.

In Ratujaya, during September, the rain falls for 16.7 days and regularly aggregates up to 65mm (2.56") of precipitation.

The average day length in September in Ratujaya is 12h and 4min.

In September, on the first day of the month, sunrise is at 05:52 and sunset at 17:52. On the last day of the month, sunrise is at 05:37 and sunset at 17:47 WIB.

In Ratujaya, the average sunshine duration in September is 9.4h.

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

In September, the average daily maximum UV index in Ratujaya, Indonesia, is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ratujaya, Indonesia

  • Average high temperature in September: 31.5°C

The warmest month (with the highest average high temperature) is October (32°C).
The month with the lowest average high temperature is January (29.5°C).

  • Average low temperature in September: 23.5°C

The month with the highest average low temperature is November (25°C).
The coldest month (with the lowest average low temperature) is July (23.1°C).

Average pressure in September
Ratujaya, Indonesia

  • Average pressure in September: 1011.2mbar

The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Ratujaya, Indonesia

  • Average wind speed in September: 7km/h

The windiest month (with the highest average wind speed) is January (9.8km/h).
The calmest month (with the lowest average wind speed) is November (6.6km/h).

Average humidity in September
Ratujaya, Indonesia

  • Average humidity in September: 68%

The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are September and October (68%).

Average rainfall in September
Ratujaya, Indonesia

  • Average rainfall in September: 65mm

The wettest month (with the highest rainfall) is March (207mm).
The driest month (with the least rainfall) is August (59mm).

Average rainfall days in September
Ratujaya, Indonesia

  • Average rainfall days in September: 16.7 days

The month with the highest number of rainy days is March (28.5 days).
The month with the least rainy days is August (16.4 days).

Average daylight in September /
Average sunshine in September
Ratujaya, 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 48min).

  • Average sunshine in September: 9h and 24min

The month with the most sunshine is March (Average sunshine: 9h and 54min).
The month with the least sunshine is July (Average sunshine: 7h and 6min).

Average sunshine days in September
Ratujaya, Indonesia

  • Average sunshine days in September: 9.8 days

The month with the most sunshine days is August (10.7 days).
The month with the least sunshine days is February (0.9 days).

Average UV index in September
Ratujaya, 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).

Average cloud cover in September
Ratujaya, Indonesia

  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in September
Ratujaya, Indonesia

  • Average visibility in September: 10km

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