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 is the coldest month of the year, registering average temperatures as high as 30.1°C (86.2°F) and as low as 24.4°C (75.9°F).Heat index
December's heat index is estimated at a very hot 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. 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 especially vital to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. 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. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The most humid month is December, with an average relative humidity of 81%.Rainfall
The month with the most rainfall in Sepang is December, when the rain falls for 27.9 days and typically aggregates up to 180mm (7.09") of precipitation.Daylight
With an average of 12h and 0min of daylight, December has the shortest days of the year.On the first day of December in Sepang, sunrise is at 7:02 am and sunset at 7:01 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:15 pm +08.
Sunshine
December has the least sunshine of the year in Sepang, with an average of 7.6h of sunshine.UV index
February through October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 7 in December translates into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Sepang?
How hot is it in Sepang in December?
What is the most humid month in Sepang?
What is the average humidity in December in Sepang?
What is the wettest month in Sepang?
How many days does it rain in December in Sepang?
What is the month with the shortest days in Sepang?
How many hours of daylight does Sepang have in December?
When is the sunrise / sunset in December in Sepang?
What is the month with the least sunshine in Sepang?
How long on average sun shines in December in Sepang?
What is the month with the highest UV index in Sepang?
What is the UV index reading in December in Sepang?
Average temperature in December
Sepang, Malaysia
- Average high temperature in December: 30.1°C
The warmest month (with the highest average high temperature) is May (31.5°C).
The month with the lowest average high temperature is December (30.1°C).
- Average low temperature in December: 24.4°C
The month with the highest average low temperature is May (25.7°C).
The coldest months (with the lowest average low temperature) are January and February (23.9°C).
Average pressure in December
Sepang, Malaysia
- Average pressure in December: 1009.5mbar
The month with the highest atmospheric pressure is January (1010.4mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in December
Sepang, Malaysia
- Average wind speed in December: 5.9km/h
The windiest month (with the highest average wind speed) is August (7.5km/h).
The calmest month (with the lowest average wind speed) is December (5.9km/h).
Average humidity in December
Sepang, Malaysia
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in December
Sepang, Malaysia
- Average rainfall in December: 180mm
The wettest month (with the highest rainfall) is December (180mm).
The driest month (with the least rainfall) is September (64mm).
Average rainfall days in December
Sepang, Malaysia
- Average rainfall days in December: 27.9 days
The months with the highest number of rainy days are November and December (27.9 days).
The month with the least rainy days is February (23 days).
Average daylight in December /
Average sunshine in December
Sepang, Malaysia
- Average daylight in December: 12h and 0min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).
Average sunshine days in December
Sepang, Malaysia
- Average sunshine days in December: 2.2 days
The month with the most sunshine days is August (4.8 days).
The month with the least sunshine days is November (1.5 days).
Average UV index in December
Sepang, Malaysia
- Average UV index in December: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October and December (UV index 7).
The months with the lowest UV index are January and November (UV index 6).
Average cloud cover in December
Sepang, Malaysia
- Average cloud cover in December: 47
The month with the most cloud cover is November (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in December
Sepang, Malaysia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
