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
In Rantau, December is the coldest month, with temperatures averaging a high of 30.5°C (86.9°F) and a low of 23.2°C (73.8°F).Heat index
December's heat index is computed to be a blistering 40°C (104°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
December is the most humid month, with an average relative humidity of 83%.Rainfall
In Rantau, in December, during 21.5 rainfall days, 102mm (4.02") of precipitation is typically accumulated. In Rantau, during the entire year, the rain falls for 245.4 days and collects up to 951mm (37.44") of precipitation.Daylight
With an average of 12h and 0min of daylight, December has the shortest days of the year in Rantau.On the first day of the month, sunrise is at 7:01 am and sunset at 7:00 pm. On the last day of December, sunrise is at 7:15 am and sunset at 7:14 pm +08.
Sunshine
The month with the least sunshine is December, with an average of 7.2h of sunshine.UV index
January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 7 during December translates into the following guidance:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How hot is December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Rantau have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Rantau have in December?
When is the highest UV index in Rantau?
How high is the UV index in December?
Average temperature in December
Rantau, Malaysia
- Average high temperature in December: 30.5°C
The warmest months (with the highest average high temperature) are March, April and May (32.3°C).
The month with the lowest average high temperature is December (30.5°C).
- Average low temperature in December: 23.2°C
The month with the highest average low temperature is May (24.4°C).
The coldest months (with the lowest average low temperature) are January and February (22.8°C).
Average pressure in December
Rantau, Malaysia
- Average pressure in December: 1009.5mbar
The months with the highest atmospheric pressure are January and February (1010.3mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in December
Rantau, Malaysia
- Average wind speed in December: 5.3km/h
The windiest month (with the highest average wind speed) is February (6.2km/h).
The calmest months (with the lowest average wind speed) are April and November (4.7km/h).
Average humidity in December
Rantau, 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 (75%).
Average rainfall in December
Rantau, Malaysia
- Average rainfall in December: 102mm
The wettest month (with the highest rainfall) is November (122mm).
The driest month (with the least rainfall) is September (36mm).
Average rainfall days in December
Rantau, Malaysia
- Average rainfall days in December: 21.5 days
The month with the highest number of rainy days is March (25.6 days).
The month with the least rainy days is September (16.5 days).
Average daylight in December /
Average sunshine in December
Rantau, 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 1min
The months with the most sunshine are July, August and September (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days in December
Rantau, Malaysia
- Average sunshine days in December: 8.9 days
The month with the most sunshine days is August (12.6 days).
The month with the least sunshine days is March (4.7 days).
Average UV index in December
Rantau, Malaysia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in December
Rantau, Malaysia
- Average cloud cover in December: 51
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Rantau, Malaysia
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
