December weather forecast
Cikopomayak, Indonesia

The first month of the summer, December, is also a hot month in Cikopomayak, Indonesia, with temperature in the range of an average low of 24.6°C (76.3°F) and an average high of 30.4°C (86.7°F).

Temperature

The advent of December observes an average high-temperature of a still tropical 30.4°C (86.7°F), nearly identical to November's 31.2°C (88.2°F). During December, Cikopomayak experiences an average low-temperature of 24.6°C (76.3°F) at night.

Heat index

In December, the heat index is appraised at a sweltering 38°C (100.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in December is 77%.

Rainfall

In December, the rain falls for 27.5 days. Throughout December, 156mm (6.14") of precipitation is accumulated. Throughout the year, in Cikopomayak, there are 291.3 rainfall days, and 1460mm (57.48") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:29 and sunset at 17:57. On the last day of December, sunrise is at 05:42 and sunset at 18:11 WIB.

Sunshine

In Cikopomayak, the average sunshine in December is 9.1h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 7 during December, leads to the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.