December weather forecastRantauprapat, Indonesia

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Rantauprapat, Indonesia, with an average temperature ranging between min 22.2°C (72°F) and max 29.6°C (85.3°F).

Temperature

December is the month when Rantauprapat experiences its coldest temperatures, averaging a high of 29.6°C (85.3°F) and a low of 22.2°C (72°F).

Heat index

December's mean heat index is calculated to be a sweltering 38°C (100.4°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 are largely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

December is the most humid month, with an average relative humidity of 87%.

Rainfall

In December, the rain falls for 28.2 days. Throughout December, 187mm (7.36") of precipitation is accumulated. Throughout the year, there are 316.5 rainfall days, and 1785mm (70.28") of precipitation is accumulated.

Daylight

With an average of 12h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:09 and sunset at 18:10. On the last day of December, sunrise is at 06:23 and sunset at 18:23 WIB.

Sunshine

With an average of 6.7h of sunshine, December has the least sunshine of the year.

UV index

January, February, April, September through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during December translates into the following guidance:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Updated: Aug 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December is the month that records the lowest temperatures, with averages ranging from a high of 29.6°C (85.3°F) to a low of 22.2°C (72°F).

The average high-temperature and low-temperature during December are 29.6°C (85.3°F) and 22.2°C (72°F) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in December is calculated to be 38°C (100.4°F).

December is the most humid month, with an average relative humidity of 87%.

In Rantauprapat, the average relative humidity in December is 87%.

In Rantauprapat, during December, the rain falls for 28.2 days and regularly aggregates up to 187mm (7.36") of precipitation.

The month with the shortest days is December, with an average of 12h and 0min of daylight.

The average day length in December in Rantauprapat is 12h and 0min.

On the first day of December, sunrise is at 06:09 and sunset at 18:10. On the last day of the month, sunrise is at 06:23 and sunset at 18:23 WIB.

With an average of 6.7h of sunshine, December has the least sunshine of the year.

The average sunshine duration in December is 6.7h.

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

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

30.2°C

29.6°C

29.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

3.9km/h

4.1km/h

4.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

1.9

2.5

3.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Rantauprapat, Indonesia

Average high temperature in December: 29.6°C

The warmest month (with the highest average high temperature) is June (32.7°C).
The month with the lowest average high temperature is December (29.6°C).

Average low temperature in December: 22.2°C

The month with the highest average low temperature is May (22.6°C).
The coldest month (with the lowest average low temperature) is January (21.7°C).

Average pressure in December
Rantauprapat, Indonesia

Average pressure in December: 1009.9mbar

The month with the highest atmospheric pressure is January (1010.6mbar).
The month with the lowest atmospheric pressure is May (1009.4mbar).

Average wind speed in December
Rantauprapat, Indonesia

Average wind speed in December: 3.8km/h

The windiest month (with the highest average wind speed) is June (4.3km/h).
The calmest month (with the lowest average wind speed) is November (3.6km/h).

Average humidity in December
Rantauprapat, Indonesia

Average humidity in December: 87%

The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are June and July (79%).

Average rainfall in December
Rantauprapat, Indonesia

Average rainfall in December: 187mm

The wettest month (with the highest rainfall) is October (195mm).
The driest month (with the least rainfall) is July (95mm).

Average rainfall days in December
Rantauprapat, Indonesia

Average rainfall days in December: 28.2 days

The month with the highest number of rainy days is April (28.4 days).
The month with the least rainy days is June (22.3 days).

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

Average daylight in December: 12h and 0min

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

Average sunshine in December: 6h and 42min

The month with the most sunshine is June (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in December
Rantauprapat, Indonesia

Average sunshine days in December: 2.5 days

The month with the most sunshine days is July (6.6 days).
The month with the least sunshine days is April (1 days).

Average UV index in December
Rantauprapat, Indonesia

Average UV index in December: 6

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