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, with average temperatures reaching a high of 30.5°C (86.9°F) and a low of 22.8°C (73°F), is the coldest month.Heat index
December's average heat index is appraised at a blisteringly hot 40°C (104°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
With an average relative humidity of 83%, December is the most humid month.Rainfall
In Batang Kali, during December, the rain falls for 28.6 days and regularly aggregates up to 181mm (7.13") of precipitation. Throughout the year, there are 300.1 rainfall days, and 1670mm (65.75") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 11h and 54min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:14 pm +08.
Sunshine
The month with the least sunshine is December, with an average of 7.3h 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 estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 7 during December, leads to the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How hot does it get in December?
What is the most humid month in Batang Kali?
What is the average humidity in December?
How many days does it rain in December in Batang Kali?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Batang Kali have in December?
When is the highest UV index?
What is the UV index intensity in December?
Average temperature in December
Batang Kali, Malaysia
- Average high temperature in December: 30.5°C
The warmest month (with the highest average high temperature) is May (32.5°C).
The month with the lowest average high temperature is December (30.5°C).
- Average low temperature in December: 22.8°C
The month with the highest average low temperature is May (23.7°C).
The coldest months (with the lowest average low temperature) are January and February (22.3°C).
Average pressure in December
Batang Kali, Malaysia
- Average pressure in December: 1009.7mbar
The month with the highest atmospheric pressure is January (1010.5mbar).
The month with the lowest atmospheric pressure is May (1008.8mbar).
Average wind speed in December
Batang Kali, Malaysia
- Average wind speed in December: 4km/h
The windiest months (with the highest average wind speed) are July and August (4.5km/h).
The calmest month (with the lowest average wind speed) is November (3.8km/h).
Average humidity in December
Batang Kali, Malaysia
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in December
Batang Kali, Malaysia
- Average rainfall in December: 181mm
The wettest month (with the highest rainfall) is November (234mm).
The driest month (with the least rainfall) is September (82mm).
Average rainfall days in December
Batang Kali, Malaysia
- Average rainfall days in December: 28.6 days
The months with the highest number of rainy days are November and December (28.6 days).
The month with the least rainy days is June (20.1 days).
Average daylight in December /
Average sunshine in December
Batang Kali, Malaysia
- 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: 7h and 2min
The months with the most sunshine are June and July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).
Average sunshine days in December
Batang Kali, Malaysia
- Average sunshine days in December: 1.6 days
The month with the most sunshine days is July (8.7 days).
The month with the least sunshine days is November (0.6 days).
Average UV index in December
Batang Kali, 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
Batang Kali, Malaysia
- Average cloud cover in December: 50
The month with the most cloud cover is November (Cloud cover 51).
The months with the least cloud cover are June and July (Cloud cover 33).
Average visibility in December
Batang Kali, Malaysia
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
