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
Cupang, Indonesia, experiences a recorded average high-temperature of a still tropical 30.5°C (86.9°F) in December, closely aligned with November's 31.3°C (88.3°F). Throughout December, Cupang witnesses a nighttime temperature average of 25°C (77°F).Heat index
December's mean heat index is estimated at a fiery hot 38°C (100.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in December is 75%.Rainfall
The month with the most rainfall is December, when the rain falls for 25.5 days and typically aggregates up to 146mm (5.75") of precipitation.Daylight
December has the longest days of the year, with an average of 12h and 30min of daylight.On the first day of the month, sunrise is at 05:21 and sunset at 17:50. On the last day of December, sunrise is at 05:34 and sunset at 18:04 WIB.
Sunshine
December has the least sunshine of the year, with an average of 8.2h of 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 vulnerability from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 7 in December leads to these recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Cupang during December?
What is the average humidity in December?
What is the wettest month in Cupang?
How many days does it rain in December?
When are the longest days?
What is the average length of the day in December in Cupang?
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 is the month with the highest UV index?
When is the lowest UV index in Cupang?
What is the UV index reading in December?
Average temperature in December
Cupang, Indonesia
- Average high temperature in December: 30.5°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The month with the lowest average high temperature is February (29.4°C).
- Average low temperature in December: 25°C
The months with the highest average low temperature are November and December (25°C).
The coldest month (with the lowest average low temperature) is August (22.2°C).
Average pressure in December
Cupang, Indonesia
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in December
Cupang, Indonesia
- Average wind speed in December: 7.1km/h
The windiest month (with the highest average wind speed) is August (12.7km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).
Average humidity in December
Cupang, Indonesia
- Average humidity in December: 75%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are September and October (69%).
Average rainfall in December
Cupang, Indonesia
- Average rainfall in December: 146mm
The wettest month (with the highest rainfall) is December (146mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in December
Cupang, Indonesia
- Average rainfall days in December: 25.5 days
The month with the highest number of rainy days is December (25.5 days).
The month with the least rainy days is August (6.5 days).
Average daylight in December /
Average sunshine in December
Cupang, Indonesia
- Average daylight in December: 12h and 3min
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: 8h and 1min
The months with the most sunshine are August and September (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days in December
Cupang, Indonesia
- Average sunshine days in December: 3.5 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is December (3.5 days).
Average UV index in December
Cupang, 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
Cupang, Indonesia
- Average cloud cover in December: 47
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Cupang, 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).
