December weather forecast
Cimanggu Kecil, Indonesia

The first month of the summer, December, is still a warm month in Cimanggu Kecil, Indonesia, with an average temperature ranging between min 23.5°C (74.3°F) and max 29.7°C (85.5°F).

Temperature

The arrival of December brings an average high-temperature of a moderately hot 29.7°C (85.5°F), nearly identical to November's 30.5°C (86.9°F). In the month of December, Cimanggu Kecil witnesses a consistent average low-temperature of 23.5°C (74.3°F).

Heat index

In December, the heat index is appraised at a very hot 36°C (96.8°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Know that the heat index computations account for shaded terrains and slight winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Cimanggu Kecil, the average relative humidity in December is 77%.

Rainfall

In Cimanggu Kecil, during December, the rain falls for 28 days and regularly aggregates up to 217mm (8.54") of precipitation. In Cimanggu Kecil, Indonesia, during the entire year, the rain falls for 295.9 days and collects up to 1940mm (76.38") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:27 and sunset at 17:56. On the last day of the month, sunrise is at 05:40 and sunset at 18:10 WIB.

Sunshine

In December, the average sunshine in Cimanggu Kecil is 8.7h.

UV index

January, March, June, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during December leads to these advisories:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.