December weather forecast
Serang, Indonesia

December documentation indicates it as the month with the highest rainfall in Serang. With an average of 128mm (5.04") of rain, it reminds the city of the frequent downpours experienced at the start of the year. The seasonal shift is evident yet the temperature and humidity levels stay aligned with Serang's tropical climate. On the bright side, longer daylight hours of approximately 12.5 hours provide respite for those looking to explore the city further.

Temperature

December in Serang observes an average high-temperature of a still tropical 30.4°C (86.7°F), marking an insignificant difference from November's 31.2°C (88.2°F). A steady low-temperature average of 25.8°C (78.4°F) is logged during December, reflecting a modest dip from daytime readings.

Heat index

December's heat index is evaluated at a fiery hot 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in December is 75%.

Rainfall

In December, in Serang, the rain falls for 27.4 days. Throughout December, 128mm (5.04") of precipitation is accumulated. Throughout the year, in Serang, there are 271.6 rainfall days, and 1261mm (49.65") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:30 and sunset at 17:57. On the last day of the month, sunrise is at 05:44 and sunset at 18:12 WIB.

Sunshine

In Serang, Indonesia, the average sunshine in December is 8.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Serang. The months with the lowest UV index in Serang are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 7 in December transforms into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.