December weather forecast
Ciawijapura, Indonesia

December, the first month of the summer in Ciawijapura, is still a tropical month, with an average temperature ranging between min 25.2°C (77.4°F) and max 30.2°C (86.4°F).

Temperature

The advent of December brings an average high-temperature of a still hot 30.2°C (86.4°F), exhibiting minor difference from the previous month. Ciawijapura maintains an average low-temperature of 25.2°C (77.4°F) throughout December's nights.

Heat index

During December, the heat index is estimated at a very hot 37°C (98.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Ciawijapura, in December, it is raining for 27.5 days, with typically 173mm (6.81") of accumulated precipitation. In Ciawijapura, during the entire year, the rain falls for 244.1 days and collects up to 1216mm (47.87") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in Ciawijapura.
On the first day of December, sunrise is at 05:19 and sunset at 17:49. On the last day of the month, sunrise is at 05:33 and sunset at 18:04 WIB.

Sunshine

December has the least sunshine of the year in Ciawijapura, with an average of 8.3h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Ciawijapura are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 7 in December translates into this advice:
Shield from overexposure. Defense against sun-related harm is required. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun 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.