December weather forecast
Penataran, Indonesia

The first month of the summer, December, is still a warm month in Penataran, Indonesia, with an average temperature fluctuating between 23.3°C (73.9°F) and 29°C (84.2°F).

Temperature

With the start of December, Penataran measures an average high-temperature of a still moderately hot 29°C (84.2°F), not significantly differing from November's 29.5°C (85.1°F). The month of December records an average low-temperature of 23.3°C (73.9°F).

Heat index

For most parts of December, the heat index is estimated at a torrid 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Penataran, Indonesia, the average relative humidity in December is 82%.

Rainfall

In December, in Penataran, the rain falls for 28.2 days. Throughout December, 193mm (7.6") of precipitation is accumulated. Throughout the year, in Penataran, Indonesia, there are 274.4 rainfall days, and 1518mm (59.76") of precipitation is accumulated.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year in Penataran.
On the first day of December in Penataran, sunrise is at 05:03 and sunset at 17:36. On the last day of the month, sunrise is at 05:16 and sunset at 17:51 WIB.

Sunshine

In December, the average sunshine in Penataran, Indonesia, is 7.6h.

UV index

The months with the lowest UV index are January through March, May through August and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.