December weather forecast
Jebak, Indonesia

December, the first month of the summer in Jebak, is still a hot month, with temperature in the range of an average low of 23.4°C (74.1°F) and an average high of 30.5°C (86.9°F).

Temperature

December is the month when Jebak experiences its coldest temperatures, averaging a high of 30.5°C (86.9°F) and a low of 23.4°C (74.1°F).

Heat index

During December, the heat index is appraised at a blistering 42°C (107.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

April and December, with an average relative humidity of 87%, are the most humid months.

Rainfall

In Jebak, in December, during 25.6 rainfall days, 158mm (6.22") of precipitation is typically accumulated. In Jebak, during the entire year, the rain falls for 286 days and collects up to 1383mm (54.45") of precipitation.

Daylight

With an average of 12h and 12min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:49 and sunset at 18:03. On the last day of the month, sunrise is at 06:03 and sunset at 18:17 WIB.

Sunshine

In December, the average sunshine in Jebak is 7.1h.

UV index

January, February and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 in December translates into this advice:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.