December weather forecast
Ciakar, Indonesia

The first month of the summer, December, is still a hot month in Ciakar, Indonesia, with an average temperature fluctuating between 30.5°C (86.9°F) and 23.5°C (74.3°F).

Temperature

The unfolding of December shows an average high-temperature of a still tropical 30.5°C (86.9°F), indicating a slight variance from November's 30°C (86°F). Ciakar records a mean low-temperature of 23.5°C (74.3°F) in December.

Heat index

The heat index value for December is evaluated at a fiery hot 39°C (102.2°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. 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 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. 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 hold particular significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The least humid month is December, with an average relative humidity of 80%.

Rainfall

In December, the rain falls for 27.6 days. Throughout December, 183mm (7.2") of precipitation is accumulated. Throughout the year, in Ciakar, there are 289.8 rainfall days, and 1677mm (66.02") of precipitation is accumulated.

Daylight

December has the longest days of the year in Ciakar, Indonesia, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:29 and sunset at 17:56. On the last day of the month, sunrise is at 05:42 and sunset at 18:11 WIB.

Sunshine

In December, the average sunshine is 7.4h.

UV index

The months with the highest UV index are February through April, October and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.