Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December, noted for its average high-temperature of 85.5°F and an average low-temperature of 76.1°F, is considered the coldest month.Heat index
The heat index for December is evaluated at a torrid 98.6°F. Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. 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. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The most humid month is December, with an average relative humidity of 80%.Rainfall
In Rengas Pulau, during December, the rain falls for 27.6 days and regularly aggregates up to 5.91" of precipitation. Throughout the year, there are 317.8 rainfall days, and 56.57" of precipitation is accumulated.Daylight
With an average of 11h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:16 and sunset at 18:12. On the last day of the month, sunrise is at 06:31 and sunset at 18:25 WIB.
Sunshine
November and December, with an average of 8h of sunshine, are months with the least sunshine.UV index
January through December, with an average maximum UV index of 7, 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 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 7 during December, leads to the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How hot does it get in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the highest UV index?
What are the months with the lowest UV index?
What is the UV index reading in December in Rengas Pulau?
Average temperature in December
Rengas Pulau, Indonesia
- Average high temperature in December: 85.5°F
The warmest months (with the highest average high temperature) are May and June (89.4°F).
The month with the lowest average high temperature is December (85.5°F).
- Average low temperature in December: 76.1°F
The month with the highest average low temperature is April (78.1°F).
The coldest month (with the lowest average low temperature) is January (75.4°F).
Average pressure in December
Rengas Pulau, Indonesia
- Average pressure in December: 29.83"Hg
The months with the highest atmospheric pressure are January and February (29.85"Hg).
The months with the lowest atmospheric pressure are May and June (29.81"Hg).
Average wind speed in December
Rengas Pulau, Indonesia
- Average wind speed in December: 4.7mph
The windiest months (with the highest average wind speed) are January and February (4.8mph).
The calmest months (with the lowest average wind speed) are May, September and October (4.2mph).
Average humidity in December
Rengas Pulau, Indonesia
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are March, June, July and August (75%).
Average rainfall in December
Rengas Pulau, Indonesia
- Average rainfall in December: 5.91"
The wettest month (with the highest rainfall) is October (6.22").
The driest month (with the least rainfall) is February (3.46").
Average rainfall days in December
Rengas Pulau, Indonesia
- Average rainfall days in December: 27.6 days
The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is February (21.3 days).
Average daylight in December /
Average sunshine in December
Rengas Pulau, Indonesia
- Average daylight in December: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in December: 8h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 18min).
The months with the least sunshine are November and December (Average sunshine: 8h and 0min).
Average sunshine days in December
Rengas Pulau, Indonesia
- Average sunshine days in December: 2.2 days
The months with the most sunshine days are January and February (5 days).
The month with the least sunshine days is April (0.9 days).
Average UV index in December
Rengas Pulau, Indonesia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Rengas Pulau, Indonesia
- Average cloud cover in December: 45
The month with the most cloud cover is November (Cloud cover 47).
The months with the least cloud cover are March and June (Cloud cover 31).
Average visibility in December
Rengas Pulau, Indonesia
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
