December weather forecast
Jatiseeng, Indonesia

The first month of the summer, December, is still a tropical month in Jatiseeng, Indonesia, 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 signifies a minor shift to an average high-temperature of a still tropical 30.2°C (86.4°F), aligning closely with November. Jatiseeng experiences a steady nighttime temperature of 25.2°C (77.4°F) throughout the month of December.

Heat index

Throughout 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.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

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

Rainfall

In Jatiseeng, during December, the rain falls for 27.5 days and regularly aggregates up to 172mm (6.77") of precipitation. In Jatiseeng, Indonesia, during the entire year, the rain falls for 244.1 days and collects up to 1214mm (47.8") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:19 and sunset at 17:48. On the last day of December, sunrise is at 05:32 and sunset at 18:03 WIB.

Sunshine

December has the least sunshine of the year in Jatiseeng, Indonesia, with an average of 8.4h of sunshine.

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 in Jatiseeng are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 7 during December translates into the following guidance:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.