December weather forecast
Jenggrong, Indonesia

December

Weather in December

December, the first month of the summer in Jenggrong, is also a moderately hot month, with an average temperature varying between 28.5°C (83.3°F) and 24.6°C (76.3°F).

Temperature

At the start of December, Jenggrong's average high-temperature reaches a still warm 28.5°C (83.3°F), subtly different from the preceding month. December is characterized by a steady nighttime low-temperature of 24.6°C (76.3°F).

Heat index

The heat index value during December is calculated to be a tropical 33°C (91.4°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

In Jenggrong, the average relative humidity in December is 77%.

Rainfall

In Jenggrong, during December, the rain falls for 21.5 days and regularly aggregates up to 102mm (4.02") of precipitation. Throughout the year, in Jenggrong, there are 204.5 rainfall days, and 822mm (32.36") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 04:59 and sunset at 17:32. On the last day of the month, sunrise is at 05:12 and sunset at 17:47 WIB.

Sunshine

In December, the average sunshine is 8.2h.

UV index

The months with the lowest UV index are January, March, June through August and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 during December translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

How hot is it in December?
In Jenggrong, 28.5°C (83.3°F) is the average high-temperature and 24.6°C (76.3°F) is the average low-temperature during December. In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 33°C (91.4°F).
What is the average humidity in December?
In December, the average relative humidity is 77%.
How much does it rain in December?
In December, the rain falls for 21.5 days. Throughout December, 102mm (4.02") of precipitation is accumulated.
When are the longest days?
With an average of 12h and 36min of daylight, December has the longest days of the year.
How many hours of daylight does Jenggrong have in December?
In Jenggrong, the average day length in December is 12h and 35min.
When are sunrise and sunset in December?
On the first day of December, sunrise is at 04:59 and sunset at 17:32. On the last day of the month, sunrise is at 05:12 and sunset at 17:47 WIB.
How long on average sun shines in December?
The average sunshine duration in December is 8.2h.
What are the months with the lowest UV index?
January, March, June through August and December, with an average maximum UV index of 6, are months with the lowest UV index.
How high is the UV index in December?
The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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
Jenggrong, Indonesia
  • Average high temperature in December: 28.5°C

The warmest month (with the highest average high temperature) is October (29.5°C).
The month with the lowest average high temperature is July (27°C).

  • Average low temperature in December: 24.6°C

The month with the highest average low temperature is December (24.6°C).
The coldest month (with the lowest average low temperature) is August (21.8°C).

Average pressure in December
Jenggrong, Indonesia
  • Average pressure in December: 1008.7mbar

The month with the highest atmospheric pressure is August (1011.7mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).

Average wind speed in December
Jenggrong, Indonesia
  • Average wind speed in December: 6.3km/h

The windiest month (with the highest average wind speed) is August (10.3km/h).
The calmest month (with the lowest average wind speed) is March (5.5km/h).

Average humidity in December
Jenggrong, Indonesia
  • Average humidity in December: 77%

The months with the highest relative humidity are January, February and March (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Jenggrong, Indonesia
  • Average rainfall in December: 102mm

The wettest month (with the highest rainfall) is January (125mm).
The driest month (with the least rainfall) is August (18mm).

Average rainfall days in December
Jenggrong, Indonesia
  • Average rainfall days in December: 21.5 days

The month with the highest number of rainy days is January (23 days).
The month with the least rainy days is August (10 days).

Average daylight in December /
Average sunshine in December
Jenggrong, Indonesia
  • Average daylight in December: 12h and 4min

The month with the longest days is December (Average daylight: 12h and 36min).
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 August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 7h and 42min).

Average sunshine days in December
Jenggrong, Indonesia
  • Average sunshine days in December: 7.6 days

The month with the most sunshine days is September (16 days).
The month with the least sunshine days is January (5.2 days).

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

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

Average cloud cover in December
Jenggrong, Indonesia
  • Average cloud cover in December: 41

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 16).

Average visibility in December
Jenggrong, Indonesia
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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