December weather forecastKarangampel, Indonesia

Weather in December

December, the first month of the summer in Karangampel, is still a tropical month, with an average temperature fluctuating between 30.5°C (86.9°F) and 26.9°C (80.4°F).

Temperature

Karangampel experiences a transition to a still hot 30.5°C (86.9°F) in average high-temperatures with the arrival of December, not greatly differing from November's 31.3°C (88.3°F). December is characterized by a steady nighttime low-temperature of 26.9°C (80.4°F).

Heat index

The heat index for December is computed to be a fiery hot 37°C (98.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
For clarity, heat index numbers account for light winds and areas under shade. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. 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. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in December in Karangampel is 72%.

Rainfall

In Karangampel, during December, the rain falls for 26 days and regularly aggregates up to 149mm (5.87") of precipitation. Throughout the year, there are 216.2 rainfall days, and 974mm (38.35") 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 December, sunrise is at 05:21 and sunset at 17:49. On the last day of the month, sunrise is at 05:34 and sunset at 18:04 WIB.

Sunshine

With an average of 8.8h of sunshine, December has the least sunshine of the year.

UV index

The months with the highest UV index 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 of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 7 during December leads to these instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.