December weather forecastJonggrangan, Indonesia

December

Weather in December

The first month of the summer, December, is still a warm month in Jonggrangan, Indonesia, with an average temperature ranging between min 23.1°C (73.6°F) and max 28.5°C (83.3°F).

Temperature

With the onset of December, the average high-temperature stands at a still moderately hot 28.5°C (83.3°F), closely aligned with November's 28.4°C (83.1°F). The nighttime temperature in Jonggrangan dips to a still warm 23.1°C (73.6°F) on average during December.

Heat index

December's heat index is evaluated at a hot 34°C (93.2°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The average relative humidity in December in Jonggrangan is 82%.

Rainfall

In Jonggrangan, in December, it is raining for 29.5 days, with typically 200mm (7.87") of accumulated precipitation. Throughout the year, in Jonggrangan, there are 296.5 rainfall days, and 1844mm (72.6") of precipitation is accumulated.

Daylight

The month with the longest days in Jonggrangan, Indonesia, is December, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:10 and sunset at 17:42. On the last day of December, sunrise is at 05:23 and sunset at 17:57 WIB.

Sunshine

With an average of 7.4h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index are January, April through September, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 6 transforms into these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

In December, in Jonggrangan, the average high-temperature is 28.5°C (83.3°F), and the average low-temperature is 23.1°C (73.6°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 34°C (93.2°F).

The average relative humidity in December in Jonggrangan is 82%.

In Jonggrangan, Indonesia, in December, it is raining for 29.5 days, with typically 200mm (7.87") of accumulated precipitation.

With an average of 12h and 36min of daylight, December has the longest days of the year.

In December, the average day length in Jonggrangan is 12h and 34min.

On the first day of December in Jonggrangan, sunrise is at 05:10 and sunset at 17:42. On the last day of the month, sunrise is at 05:23 and sunset at 17:57 WIB.

The month with the least sunshine in Jonggrangan is December, with an average of 7.4h of sunshine.

In December, the average sunshine duration is 7.4h.

January, April through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index.

The average daily maximum UV index in December in Jonggrangan is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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
Jonggrangan, Indonesia

  • Average high temperature in December: 28.5°C

The warmest month (with the highest average high temperature) is October (29.1°C).
The month with the lowest average high temperature is July (27.3°C).

  • Average low temperature in December: 23.1°C

The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).

Average pressure in December
Jonggrangan, Indonesia

  • Average pressure in December: 1009.1mbar

The months with the highest atmospheric pressure are August and September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

Average wind speed in December
Jonggrangan, Indonesia

  • Average wind speed in December: 8.2km/h

The windiest month (with the highest average wind speed) is August (11.5km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).

Average humidity in December
Jonggrangan, Indonesia

  • Average humidity in December: 82%

The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (80%).

Average rainfall in December
Jonggrangan, Indonesia

  • Average rainfall in December: 200mm

The wettest month (with the highest rainfall) is March (242mm).
The driest month (with the least rainfall) is August (25mm).

Average rainfall days in December
Jonggrangan, Indonesia

  • Average rainfall days in December: 29.5 days

The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.6 days).

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

  • Average daylight in December: 12h and 36min

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: 7h and 24min

The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in December
Jonggrangan, Indonesia

  • Average sunshine days in December: 0.9 days

The month with the most sunshine days is August (12.3 days).
The month with the least sunshine days is March (0.5 days).

Average UV index in December
Jonggrangan, Indonesia

  • Average UV index in December: 6

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

Average cloud cover in December
Jonggrangan, Indonesia

  • Average cloud cover in December: 50

The months with the most cloud cover are January and December (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 38).

Average visibility in December
Jonggrangan, Indonesia

  • Average visibility in December: 9km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).