September weather forecast
Bintuni, Indonesia

September

Weather in September

September, the first month of the spring in Bintuni, is still a warm month, with an average temperature varying between 23°C (73.4°F) and 27.5°C (81.5°F).

Temperature

The advent of September denotes an average high-temperature of a still moderately hot 27.5°C (81.5°F), parallel to August's conditions. Bintuni's average temperature throughout the nights in September exhibits a minor decrease from daytime highs, stabilizing at a still warm 23°C (73.4°F).

Heat index

September's mean heat index is calculated to be a tropical 31°C (87.8°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The months with the lowest humidity are July through October, with an average relative humidity of 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 27 days and accumulates 102mm (4.02") of precipitation.

Daylight

In Bintuni, Indonesia, the average length of the day in September is 12h and 6min.
On the first day of September, sunrise is at 06:03 and sunset at 18:08. On the last day of the month, sunrise is at 05:51 and sunset at 17:59 WIT.

Sunshine

In Bintuni, the average sunshine in September is 9.9h.

UV index

The months with the highest UV index in Bintuni are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index in Bintuni. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

What is the average September temperature?
In Bintuni, 27.5°C (81.5°F) is the average high-temperature and 23°C (73.4°F) is the average low-temperature during September. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 31°C (87.8°F).
What is the least humid month?
July through October, with an average relative humidity of 78%, are the least humid months.
What is the average humidity in September?
In September, the average relative humidity is 78%.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 27 days and typically collects 102mm (4.02") of precipitation.
How much does it rain in September?
In Bintuni, in September, it is raining for 27 days, with typically 102mm (4.02") of accumulated precipitation.
What is the average length of the day in September in Bintuni?
The average day length in September is 12h and 6min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 06:03 and sunset at 18:08. On the last day of the month, sunrise is at 05:51 and sunset at 17:59 WIT.
How long on average sun shines in September?
In Bintuni, the average sunshine duration in September is 9.9h.
When is the highest UV index?
January through December, with an average maximum UV index of 6, are months with the highest UV index.
What is the month with the lowest UV index?
January through December, with an average maximum UV index of 6, are months with the lowest UV index.
How high is the UV index in September?
In Bintuni, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Bintuni, Indonesia
  • Average high temperature in September: 27.5°C

The warmest month (with the highest average high temperature) is October (28°C).
The months with the lowest average high temperature are January and March (27°C).

  • Average low temperature in September: 23°C

The month with the highest average low temperature is December (24.1°C).
The coldest month (with the lowest average low temperature) is September (23°C).

Average pressure in September
Bintuni, Indonesia
  • Average pressure in September: 1010mbar

The month with the highest atmospheric pressure is September (1010mbar).
The month with the lowest atmospheric pressure is December (1008.2mbar).

Average wind speed in September
Bintuni, Indonesia
  • Average wind speed in September: 6.3km/h

The windiest month (with the highest average wind speed) is February (9.5km/h).
The calmest month (with the lowest average wind speed) is May (6.2km/h).

Average humidity in September
Bintuni, Indonesia
  • Average humidity in September: 78%

The months with the highest relative humidity are March and April (82%).
The months with the lowest relative humidity are July, August, September and October (78%).

Average rainfall in September
Bintuni, Indonesia
  • Average rainfall in September: 102mm

The wettest month (with the highest rainfall) is April (225mm).
The driest month (with the least rainfall) is September (102mm).

Average rainfall days in September
Bintuni, Indonesia
  • Average rainfall days in September: 27 days

The month with the highest number of rainy days is April (27.9 days).
The month with the least rainy days is February (21.9 days).

Average daylight in September /
Average sunshine in September
Bintuni, Indonesia
  • Average daylight in September: 12h and 1min

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

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is March (Average sunshine: 7h and 54min).

Average sunshine days in September
Bintuni, Indonesia
  • Average sunshine days in September: 0.9 days

The month with the most sunshine days is January (5.2 days).
The month with the least sunshine days is September (0.9 days).

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

Average cloud cover in September
Bintuni, Indonesia
  • Average cloud cover in September: 34

The months with the most cloud cover are March and April (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 33).

Average visibility in September
Bintuni, Indonesia
  • Average visibility in September: 10km

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

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