December weather forecast
Sumber Kidul, Indonesia

The first month of the summer, December, is still a hot month in Sumber Kidul, Indonesia, with an average temperature varying between 30.2°C (86.4°F) and 25.2°C (77.4°F).

Temperature

With the advent of December, Sumber Kidul's high-temperatures adjust to a still hot 30.2°C (86.4°F), closely aligning with the preceding month. Sumber Kidul sustains a near constant temperature throughout December, with nighttime averages of 25.2°C (77.4°F).

Heat index

The average heat index in December is computed to be a sweltering 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Sumber Kidul, the average relative humidity in December is 76%.

Rainfall

In December, in Sumber Kidul, the rain falls for 27.5 days. Throughout December, 173mm (6.81") of precipitation is accumulated. Throughout the year, there are 244.1 rainfall days, and 1216mm (47.87") 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 in Sumber Kidul, sunrise is at 05:19 and sunset at 17:48. On the last day of the month, sunrise is at 05:32 and sunset at 18:03 WIB.

Sunshine

December has the least sunshine of the year in Sumber Kidul, Indonesia, with an average of 8.3h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In December, an average UV index of 7 transforms into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.