December weather forecastJongaya, Indonesia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Jongaya, Indonesia, with an average temperature ranging between max 29.9°C (85.8°F) and min 25.1°C (77.2°F).Temperature
December brings an average high-temperature of a warm 29.9°C (85.8°F), showing a slight difference from November's 31.4°C (88.5°F). December sees a slight dip to an average low temperature of 25.1°C (77.2°F) from the daytime highs.Heat index
The heat index value for December is estimated at a fiery hot 36°C (96.8°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Consider that heat index readings are for situations in the shade and light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in December is 76%.Rainfall
In December, the rain falls for 22.5 days. Throughout December, 106mm (4.17") of precipitation is accumulated. In Jongaya, during the entire year, the rain falls for 193.7 days and collects up to 839mm (33.03") of precipitation.Daylight
The month with the longest days is December, with an average of 12h and 24min of daylight.On the first day of the month, sunrise is at 05:39 and sunset at 18:03. On the last day of December, in Jongaya, sunrise is at 05:52 and sunset at 18:17 WITA.
Sunshine
December has the most sunshine of the year, with an average of 10.1h of sunshine.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 7 in December suggests the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jongaya, Indonesia
- Average high temperature in December: 29.9°C
The warmest month (with the highest average high temperature) is October (32.2°C).
The month with the lowest average high temperature is January (29.1°C).
- Average low temperature in December: 25.1°C
The month with the highest average low temperature is November (25.5°C).
The coldest month (with the lowest average low temperature) is August (23°C).
Average pressure in December
Jongaya, Indonesia
- Average pressure in December: 1008.3mbar
The month with the highest atmospheric pressure is August (1010.8mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in December
Jongaya, Indonesia
- Average wind speed in December: 7.3km/h
The windiest month (with the highest average wind speed) is January (8.7km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).
Average humidity in December
Jongaya, Indonesia
- Average humidity in December: 76%
The months with the highest relative humidity are April and May (79%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Jongaya, Indonesia
- Average rainfall in December: 106mm
The wettest month (with the highest rainfall) is January (159mm).
The driest month (with the least rainfall) is September (9mm).
Average rainfall days in December
Jongaya, Indonesia
- Average rainfall days in December: 22.5 days
The month with the highest number of rainy days is March (23.8 days).
The month with the least rainy days is August (4.9 days).
Average daylight in December /
Average sunshine in December
Jongaya, Indonesia
- Average daylight in December: 12h and 24min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in December: 10h and 6min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is May (Average sunshine: 6h and 48min).
Average sunshine days in December
Jongaya, Indonesia
- Average sunshine days in December: 6.8 days
The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is March (4.1 days).
Average UV index in December
Jongaya, Indonesia
- Average UV index in December: 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 December
Jongaya, Indonesia
- Average cloud cover in December: 40
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in December
Jongaya, 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).





