December weather forecastRangkah, Indonesia

December

Weather in December

The first month of the summer, December, is also a hot month in Rangkah, Indonesia, with an average temperature varying between 24.1°C (75.4°F) and 31.5°C (88.7°F).

Temperature

Rangkah's average high-temperature marks a still hot 31.5°C (88.7°F) with the advent of December, closely mirroring that of the preceding month. December nights are marked by an average temperature drop to a moderately hot 24.1°C (75.4°F).

Heat index

During December, the heat index is evaluated at a scorching 41°C (105.8°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Always consider that heat index estimations are for light winds and places in the shade. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Rangkah, during December, the rain falls for 28.5 days and regularly aggregates up to 192mm (7.56") of precipitation. Throughout the year, in Rangkah, there are 218.1 rainfall days, and 1410mm (55.51") 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 December, sunrise is at 05:02 and sunset at 17:33. On the last day of the month, sunrise is at 05:15 and sunset at 17:48 WIB.

Sunshine

In December, the average sunshine is 7.9h.

UV index

The months with the highest UV index are February, April through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 7 translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

In Rangkah, 31.5°C (88.7°F) is the average high-temperature and 24.1°C (75.4°F) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in December is evaluated at 41°C (105.8°F).

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

In Rangkah, in December, it is raining for 28.5 days, with typically 192mm (7.56") of accumulated precipitation.

With an average of 12h and 30min of daylight, December has the longest days of the year.

The average day length in December is 12h and 32min.

On the first day of December in Rangkah, sunrise is at 05:02 and sunset at 17:33. On the last day of the month, sunrise is at 05:15 and sunset at 17:48 WIB.

The average sunshine duration in December is 7.9h.

February, April through December, with an average maximum UV index of 7, are months with the highest UV index.

In Rangkah, the average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Rangkah, Indonesia

  • Average high temperature in December: 31.5°C

The warmest month (with the highest average high temperature) is October (34.6°C).
The month with the lowest average high temperature is February (30.1°C).

  • Average low temperature in December: 24.1°C

The month with the highest average low temperature is November (24.9°C).
The coldest months (with the lowest average low temperature) are July and August (21.8°C).

Average pressure in December
Rangkah, Indonesia

  • Average pressure in December: 1008.7mbar

The months with the highest atmospheric pressure are August and September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).

Average wind speed in December
Rangkah, Indonesia

  • Average wind speed in December: 6.3km/h

The windiest month (with the highest average wind speed) is September (7.7km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).

Average humidity in December
Rangkah, Indonesia

  • Average humidity in December: 77%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are September and October (62%).

Average rainfall in December
Rangkah, Indonesia

  • Average rainfall in December: 192mm

The wettest month (with the highest rainfall) is February (273mm).
The driest month (with the least rainfall) is August (6mm).

Average rainfall days in December
Rangkah, Indonesia

  • Average rainfall days in December: 28.5 days

The month with the highest number of rainy days is January (30.1 days).
The month with the least rainy days is August (4 days).

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

  • Average daylight in December: 12h and 30min

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: 7h and 54min

The months with the most sunshine are August, September and October (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).

Average sunshine days in December
Rangkah, Indonesia

  • Average sunshine days in December: 1.4 days

The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is February (0.3 days).

Average UV index in December
Rangkah, Indonesia

  • Average UV index in December: 7

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

Average cloud cover in December
Rangkah, Indonesia

  • Average cloud cover in December: 44

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 17).

Average visibility in December
Rangkah, Indonesia

  • Average visibility in December: 9km

The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and March (8km).