December weather forecast
Calang, Indonesia

The first month of the winter, December, is also a moderately hot month in Calang, Indonesia, with an average temperature fluctuating between 23.4°C (74.1°F) and 29.2°C (84.6°F).

Temperature

The start of December marks an average high-temperature of a still moderately hot 29.2°C (84.6°F), hardly distinguishable from the conditions in November. Throughout December, the nighttime temperature in Calang averages to a still moderately hot 23.4°C (74.1°F).

Heat index

For December, the heat index is calculated to be a torrid 36°C (96.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Heat index determinations are made taking into account the shade and light air movements. 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', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The months with the highest humidity are November and December, with an average relative humidity of 81%.

Rainfall

In December, in Calang, Indonesia, the rain falls for 29.1 days. Throughout December, 211mm (8.31") of precipitation is accumulated. In Calang, during the entire year, the rain falls for 308.7 days and collects up to 2171mm (85.47") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 54min of daylight.
On the first day of December in Calang, Indonesia, sunrise is at 06:30 and sunset at 18:23. On the last day of the month, sunrise is at 06:44 and sunset at 18:36 WIB.

Sunshine

The average sunshine in December is 7.9h.

UV index

The months with the highest UV index in Calang are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during December translates into the following guidance:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.