December weather forecastRawamangun, 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 26°C (78.8°F) and max 30.6°C (87.1°F).Temperature
The advent of December denotes an average high-temperature of a still tropical 30.6°C (87.1°F), subtly different from November's 31.5°C (88.7°F). Rawamangun's nighttime average temperature in December drops marginally from the daytime highs, settling at a moderately hot 26°C (78.8°F).Heat index
The average heat index in December is computed to be a very hot 37°C (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 123mm (4.84") of precipitation. Throughout the year, there are 252 rainfall days, and 1150mm (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.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rawamangun, Indonesia
- Average high temperature in December: 30.6°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The months with the lowest average high temperature are January and February (29.8°C).
- Average low temperature in December: 26°C
The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is August (24.7°C).
Average pressure in December
Rawamangun, Indonesia
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in December
Rawamangun, Indonesia
- Average wind speed in December: 10.8km/h
The windiest month (with the highest average wind speed) is January (12.4km/h).
The calmest month (with the lowest average wind speed) is November (8.1km/h).
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: 123mm
The wettest month (with the highest rainfall) is March (144mm).
The driest month (with the least rainfall) is August (35mm).
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: 12h and 30min
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 18min
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: 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: 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: 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: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
