December weather forecast
Petompon, Indonesia

The first month of the summer, December, is also a hot month in Petompon, Indonesia, with an average temperature varying between 25.1°C (77.2°F) and 31°C (87.8°F).

Temperature

December's commencement is accompanied by an average high-temperature of a still hot 31°C (87.8°F), diverging marginally from November's 32.2°C (90°F). The average low-temperature, in December, is a warm 25.1°C (77.2°F).

Heat index

The average heat index in December is evaluated at a blisteringly hot 40°C (104°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 24.8 days. Throughout December, 128mm (5.04") of precipitation is accumulated. In Petompon, during the entire year, the rain falls for 226.7 days and collects up to 1000mm (39.37") of precipitation.

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 05:12 and sunset at 17:42. On the last day of the month, sunrise is at 05:25 and sunset at 17:57 WIB.

Sunshine

December has the least sunshine of the year, with an average of 8.2h of sunshine.

UV index

The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat.