December weather forecastRabak, Indonesia
December
Weather in December
December, the first month of the summer in Rabak, is still a hot month, with an average temperature fluctuating between 30.5°C (86.9°F) and 24.1°C (75.4°F).Temperature
December's presence records an average high-temperature of a still hot 30.5°C (86.9°F), closely mirroring November's climate. In Rabak, the nighttime temperature averages to a warm 24.1°C (75.4°F) during December.Heat index
Throughout December, the heat index is calculated to be a sweltering 38°C (100.4°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
In December, the average relative humidity in Rabak is 75%.Rainfall
In December, in Rabak, the rain falls for 26.7 days. Throughout December, 180mm (7.09") of precipitation is accumulated. In Rabak, during the entire year, the rain falls for 275.6 days and collects up to 1683mm (66.26") of precipitation.Daylight
With an average of 12h and 30min of daylight, December has the longest days of the year.On the first day of December in Rabak, sunrise is at 05:28 and sunset at 17:56. On the last day of the month, sunrise is at 05:41 and sunset at 18:11 WIB.
Sunshine
The average sunshine in December is 8.6h.UV index
March through December, with an average maximum UV index of 7, are months with the highest UV index in Rabak. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 7 suggests these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rabak, Indonesia
- Average high temperature in December: 30.5°C
The warmest months (with the highest average high temperature) are September and October (32°C).
The months with the lowest average high temperature are January and February (29.3°C).
- Average low temperature in December: 24.1°C
The month with the highest average low temperature is November (24.5°C).
The coldest month (with the lowest average low temperature) is July (22°C).
Average pressure in December
Rabak, Indonesia
- Average pressure in December: 1009.3mbar
The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in December
Rabak, Indonesia
- Average wind speed in December: 7.7km/h
The windiest month (with the highest average wind speed) is January (8.6km/h).
The calmest month (with the lowest average wind speed) is May (6km/h).
Average humidity in December
Rabak, Indonesia
- Average humidity in December: 75%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is September (68%).
Average rainfall in December
Rabak, Indonesia
- Average rainfall in December: 180mm
The wettest month (with the highest rainfall) is March (230mm).
The driest month (with the least rainfall) is August (52mm).
Average rainfall days in December
Rabak, Indonesia
- Average rainfall days in December: 26.7 days
The month with the highest number of rainy days is March (27.2 days).
The month with the least rainy days is August (15.3 days).
Average daylight in December /
Average sunshine in December
Rabak, 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: 8h and 36min
The month with the most sunshine is March (Average sunshine: 9h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 36min).
Average sunshine days in December
Rabak, Indonesia
- Average sunshine days in December: 3.6 days
The month with the most sunshine days is August (13.6 days).
The month with the least sunshine days is February (2 days).
Average UV index in December
Rabak, Indonesia
- Average UV index in December: 7
The months with the highest UV index are March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January and February (UV index 6).
Average cloud cover in December
Rabak, Indonesia
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Rabak, Indonesia
- Average visibility in December: 9km
The months with the highest visibility are June, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, July, November and December (9km).





