December weather forecast
Rawamangun, Indonesia

December

Weather in December

The first month of the summer, December, is still a hot month in Rawamangun, Indonesia, with an average temperature ranging between min 78.8°F and max 87.1°F.

Temperature

The advent of December denotes an average high-temperature of a still tropical 87.1°F, subtly different from November's 88.7°F. Rawamangun's nighttime average temperature in December drops marginally from the daytime highs, settling at a moderately hot 78.8°F.

Heat index

The average heat index in December is computed to be a very hot 98.6°F. Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. 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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in December is 71%.

Rainfall

In Rawamangun, during December, the rain falls for 23.9 days and regularly aggregates up to 4.84" of precipitation. Throughout the year, there are 252 rainfall days, and 45.28" of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:27 and sunset at 17:55. On the last day of the month, sunrise is at 05:41 and sunset at 18:09 WIB.

Sunshine

In December, the average sunshine in Rawamangun is 9.3h.

UV index

The months with the highest UV index in Rawamangun are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during December leads to these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

How hot is it in Rawamangun in December?
In December, the average high-temperature and low-temperature are 87.1°F and 78.8°F respectively. In December, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 98.6°F.
What is the average humidity in December in Rawamangun?
In Rawamangun, the average relative humidity in December is 71%.
How many days does it rain in December in Rawamangun?
In December, in Rawamangun, Indonesia, the rain falls for 23.9 days. Throughout December, 4.84" of precipitation is accumulated.
When are the longest days in Rawamangun?
With an average of 12h and 30min of daylight, December has the longest days of the year.
How many hours of daylight does Rawamangun have in December?
The average day length in December is 12h and 29min.
When are sunrise and sunset in December in Rawamangun?
In December, on the first day of the month, sunrise is at 05:27 and sunset at 17:55. On the last day of the month, in Rawamangun, sunrise is at 05:41 and sunset at 18:09 WIB.
How long on average sun shines in December in Rawamangun?
In December, the average sunshine duration in Rawamangun, Indonesia, is 9.3h.
What is the month with the highest UV index in Rawamangun?
The months with the highest UV index in Rawamangun are January through December, with an average maximum UV index of 7.
What is the month with the lowest UV index in Rawamangun?
The months with the lowest UV index in Rawamangun, Indonesia, are January through December, with an average maximum UV index of 7.
What is the UV index reading in December in Rawamangun?
In Rawamangun, Indonesia, the average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
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 December - Rawamangun, Indonesia
Average temperature in December
Rawamangun, Indonesia
  • Average high temperature in December: 87.1°F

The warmest month (with the highest average high temperature) is October (89.2°F).
The months with the lowest average high temperature are January and February (85.6°F).

  • Average low temperature in December: 78.8°F

The month with the highest average low temperature is November (79.7°F).
The coldest month (with the lowest average low temperature) is August (76.5°F).

Average pressure in December - Rawamangun, Indonesia
Average pressure in December
Rawamangun, Indonesia
  • Average pressure in December: 29.8"Hg

The month with the highest atmospheric pressure is September (29.86"Hg).
The month with the lowest atmospheric pressure is December (29.8"Hg).

Average wind speed in December - Rawamangun, Indonesia
Average wind speed in December
Rawamangun, Indonesia
  • Average wind speed in December: 6.7mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is November (5mph).

Average humidity in December - Rawamangun, Indonesia
Average humidity in December
Rawamangun, Indonesia
  • Average humidity in December: 71%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is October (67%).

Average rainfall in December - Rawamangun, Indonesia
Average rainfall in December
Rawamangun, Indonesia
  • Average rainfall in December: 4.84"

The wettest month (with the highest rainfall) is March (5.67").
The driest month (with the least rainfall) is August (1.38").

Average rainfall days in December - Rawamangun, Indonesia
Average rainfall days in December
Rawamangun, Indonesia
  • Average rainfall days in December: 23.9 days

The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (11.6 days).

Average daylight in December / Average sunshine in December - Rawamangun, Indonesia
Average daylight in December /
Average sunshine in December
Rawamangun, Indonesia
  • Average daylight in December: 12h and 3min

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 December: 9h and 2min

The month with the most sunshine is March (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).

Average sunshine days in December - Rawamangun, Indonesia
Average sunshine days in December
Rawamangun, Indonesia
  • Average sunshine days in December: 5.7 days

The month with the most sunshine days is August (16 days).
The month with the least sunshine days is February (2.6 days).

Average UV index in December - Rawamangun, Indonesia
Average UV index in December
Rawamangun, Indonesia
  • Average UV index in December: 7

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

Average cloud cover in December - Rawamangun, Indonesia
Average cloud cover in December
Rawamangun, Indonesia
  • Average cloud cover in December: 43

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December - Rawamangun, Indonesia
Average visibility in December
Rawamangun, Indonesia
  • Average visibility in December: 6mi

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

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