December weather forecastJebak, Indonesia

December

Weather in December

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.

Frequently asked questions

With average high temperatures of 30.5°C (86.9°F) and lows of 23.4°C (74.1°F), December is the coldest month.

In Jebak, 30.5°C (86.9°F) is the average high-temperature and 23.4°C (74.1°F) is the average low-temperature during December. In December, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 42°C (107.6°F).

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

The average relative humidity in December is 87%.

In December, the rain falls for 25.6 days. Throughout December, 158mm (6.22") of precipitation is accumulated.

With an average of 12h and 12min of daylight, December has the longest days of the year in Jebak, Indonesia.

In December, the average day length is 12h and 14min.

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.

In December, the average sunshine duration is 7.1h.

January, February and December, with an average maximum UV index of 6, are months with the lowest UV index in Jebak.

In Jebak, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Jebak, Indonesia

  • Average high temperature in December: 30.5°C

The warmest month (with the highest average high temperature) is September (33.2°C).
The month with the lowest average high temperature is December (30.5°C).

  • Average low temperature in December: 23.4°C

The month with the highest average low temperature is May (23.6°C).
The coldest month (with the lowest average low temperature) is September (22.9°C).

Average pressure in December
Jebak, Indonesia

  • Average pressure in December: 1009.3mbar

The month with the highest atmospheric pressure is February (1010.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).

Average wind speed in December
Jebak, Indonesia

  • Average wind speed in December: 4.2km/h

The windiest month (with the highest average wind speed) is January (4.9km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).

Average humidity in December
Jebak, Indonesia

  • Average humidity in December: 87%

The months with the highest relative humidity are April and December (87%).
The month with the lowest relative humidity is September (76%).

Average rainfall in December
Jebak, Indonesia

  • Average rainfall in December: 158mm

The wettest month (with the highest rainfall) is April (174mm).
The driest month (with the least rainfall) is September (55mm).

Average rainfall days in December
Jebak, Indonesia

  • Average rainfall days in December: 25.6 days

The month with the highest number of rainy days is March (28.5 days).
The month with the least rainy days is September (17.7 days).

Average daylight in December /
Average sunshine in December
Jebak, Indonesia

  • Average daylight in December: 12h and 12min

The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).

  • Average sunshine in December: 7h and 6min

The month with the most sunshine is September (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).

Average sunshine days in December
Jebak, Indonesia

  • Average sunshine days in December: 3.8 days

The month with the most sunshine days is August (10.5 days).
The month with the least sunshine days is March (2 days).

Average UV index in December
Jebak, Indonesia

  • Average UV index in December: 6

The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).

Average cloud cover in December
Jebak, Indonesia

  • Average cloud cover in December: 63

The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 40).

Average visibility in December
Jebak, Indonesia

  • Average visibility in December: 6km

The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are April, May and December (6km).