December weather forecast
Cijolang, Indonesia

December

Weather in December

The first month of the summer, December, is still a warm month in Cijolang, Indonesia, with an average temperature varying between 28.4°C (83.1°F) and 21.8°C (71.2°F).

Temperature

The average high-temperature in December, at a still warm 28.4°C (83.1°F), mirrors November's climate. December generally records an average low-temperature of 21.8°C (71.2°F).

Heat index

In December, the heat index is estimated at a hot 33°C (91.4°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Cijolang, during December, the rain falls for 29.5 days and regularly aggregates up to 228mm (8.98") of precipitation. Throughout the year, there are 304.3 rainfall days, and 2093mm (82.4") 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 the month, sunrise is at 05:22 and sunset at 17:52. On the last day of December, sunrise is at 05:35 and sunset at 18:07 WIB.

Sunshine

In Cijolang, the average sunshine in December is 8.2h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

How hot is December?
In Cijolang, 28.4°C (83.1°F) is the average high-temperature and 21.8°C (71.2°F) is the average low-temperature during December. In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 33°C (91.4°F).
What is the average humidity in December?
In December, the average relative humidity in Cijolang is 82%.
How many days does it rain in December?
In Cijolang, in December, during 29.5 rainfall days, 228mm (8.98") of precipitation is typically accumulated.
When are the longest days?
With an average of 12h and 30min of daylight, December has the longest days of the year.
What is the average length of the day in December?
In Cijolang, Indonesia, the average day length in December is 12h and 32min.
When is the sunrise / sunset in December?
In December, on the first day of the month, sunrise is at 05:22 and sunset at 17:52. On the last day of the month, sunrise is at 05:35 and sunset at 18:07 WIB.
How long on average sun shines in December?
In December, the average sunshine duration in Cijolang is 8.2h.
What are the months with the highest UV index?
The months with the highest UV index are January through December, with an average maximum UV index of 6.
What are the months with the lowest UV index?
January through December, with an average maximum UV index of 6, are months with the lowest UV index.
What is the UV index intensity in December in Cijolang?
The average daily maximum UV index in December is 6. A UV Index estimate 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Cijolang, Indonesia
  • Average high temperature in December: 28.4°C

The warmest month (with the highest average high temperature) is October (28.9°C).
The month with the lowest average high temperature is July (27°C).

  • Average low temperature in December: 21.8°C

The months with the highest average low temperature are January and December (21.8°C).
The coldest month (with the lowest average low temperature) is August (19.2°C).

Average pressure in December
Cijolang, Indonesia
  • Average pressure in December: 1009.4mbar

The month with the highest atmospheric pressure is September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009.4mbar).

Average wind speed in December
Cijolang, Indonesia
  • Average wind speed in December: 4.5km/h

The windiest month (with the highest average wind speed) is September (6.7km/h).
The calmest month (with the lowest average wind speed) is February (4.1km/h).

Average humidity in December
Cijolang, Indonesia
  • Average humidity in December: 82%

The months with the highest relative humidity are May, June and July (86%).
The months with the lowest relative humidity are September and October (81%).

Average rainfall in December
Cijolang, Indonesia
  • Average rainfall in December: 228mm

The wettest month (with the highest rainfall) is March (310mm).
The driest month (with the least rainfall) is August (30mm).

Average rainfall days in December
Cijolang, Indonesia
  • Average rainfall days in December: 29.5 days

The month with the highest number of rainy days is March (30.6 days).
The month with the least rainy days is August (16.4 days).

Average daylight in December /
Average sunshine in December
Cijolang, Indonesia
  • Average daylight in December: 12h and 3min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in December: 8h and 1min

The month with the most sunshine is October (Average sunshine: 8h and 48min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).

Average sunshine days in December
Cijolang, Indonesia
  • Average sunshine days in December: 0.4 days

The month with the most sunshine days is August (10.8 days).
The months with the least sunshine days are February and March (0.2 days).

Average UV index in December
Cijolang, Indonesia
  • Average UV index in December: 6

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

Average cloud cover in December
Cijolang, Indonesia
  • Average cloud cover in December: 49

The months with the most cloud cover are January and February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 42).

Average visibility in December
Cijolang, Indonesia
  • Average visibility in December: 9km

The months with the highest visibility are January and December (9km).
The month with the lowest visibility is July (7km).

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