December weather forecast
Ciranji, Indonesia

December, the first month of the summer in Ciranji, is still a hot month, with an average temperature varying between 30.6°C (87.1°F) and 23.8°C (74.8°F).

Temperature

Transitioning into December, Ciranji records an average high-temperature of a still hot 30.6°C (87.1°F), almost identical to November's 31.7°C (89.1°F). An average minimum temperature of 23.8°C (74.8°F) is recorded during the month of December.

Heat index

The heat index for December is evaluated at a very hot 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Ciranji, the average relative humidity in December is 74%.

Rainfall

In December, the rain falls for 21.8 days. Throughout December, 134mm (5.28") of precipitation is accumulated. In Ciranji, during the entire year, the rain falls for 229.5 days and collects up to 1116mm (43.94") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:24 and sunset at 17:54. On the last day of December, sunrise is at 05:38 and sunset at 18:08 WIB.

Sunshine

In December, the average sunshine is 9.3h.

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 hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.