December weather forecast
Jajar, Indonesia

December, the first month of the summer in Jajar, is also a moderately hot month, with an average temperature fluctuating between 22.6°C (72.7°F) and 29.2°C (84.6°F).

Temperature

Entering December, Jajar's average high-temperature reads a moderately hot 29.2°C (84.6°F), indicating a close resemblance to the previous month's climate. Jajar, in December, witnesses an average low-temperature of 22.6°C (72.7°F).

Heat index

During December, the heat index is calculated to be a very hot 36°C (96.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. You should know that direct sun exposure can heighten weather effects, potentially elevating 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in December is 83%.

Rainfall

In December, the rain falls for 24.5 days. Throughout December, 142mm (5.59") of precipitation is accumulated. In Jajar, Indonesia, during the entire year, the rain falls for 222.6 days and collects up to 1111mm (43.74") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 05:10 and sunset at 17:41. On the last day of the month, sunrise is at 05:23 and sunset at 17:56 WIB.

Sunshine

The average sunshine in December is 7h.

UV index

January through August, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 6 in December translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.