December weather forecastMacau, China
December
Weather in December
December marks the end of the year with the winter season stepping in. Macau, China experiences a stark contrast in temperature from a high of 20.1°C (68.2°F) to a low of 14°C (57.2°F). Despite being the month with the least amount of rainfall, the relative humidity remains substantial. With shorter daylight hours and cooler weather, it’s time to bundle up and welcome the winter chill.Temperature
The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 24.1°C (75.4°F) in November to a pleasant 20.1°C (68.2°F). An average nighttime temperature of 14°C (57.2°F) is recorded in Macau during December.Humidity
December is the least humid month in Macau, with an average relative humidity of 68.5%.Rainfall
In December, the rain falls for 4.5 days. Throughout December, 30mm (1.18") of precipitation is accumulated. Throughout the year, there are 130.2 rainfall days, and 2058mm (81.02") of precipitation is accumulated.Sea temperature
In Macau, the average seawater temperature in December is 20.9°C (69.6°F).Note: The majority of people find swimming in 20.9°C (69.6°F) unenjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing becomes more challenging to control.
Daylight
The month with the shortest days in Macau is December, with an average of 10h and 48min of daylight.On the first day of December, sunrise is at 06:48 and sunset at 17:41. On the last day of the month, sunrise is at 07:04 and sunset at 17:52 CST.
Sunshine
The average sunshine in December is 5.1h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Macau, China
- Average high temperature in December: 20.1°C
The warmest month (with the highest average high temperature) is July (31.6°C).
The month with the lowest average high temperature is January (18.2°C).
- Average low temperature in December: 14°C
The month with the highest average low temperature is July (26.2°C).
The coldest month (with the lowest average low temperature) is January (12.5°C).
Average humidity in December
Macau, China
- Average humidity in December: 68.5%
The month with the highest relative humidity is April (86.1%).
The month with the lowest relative humidity is December (68.5%).
Average rainfall in December
Macau, China
- Average rainfall in December: 30.2mm
The wettest month (with the highest rainfall) is June (363.8mm).
The driest month (with the least rainfall) is January (26.5mm).
Average rainfall days in December
Macau, China
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is December (4.5 days).
Average sea temperature in December
Macau, China
- Average sea temperature in December: 20.9°C
The best month for swimming (with the highest average sea temperature) is July (29.3°C).
The coldest month (with the lowest average sea temperature) is February (18.6°C).
Average daylight in December /
Average sunshine in December
Macau, China
- Average daylight in December: 10h and 48min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is July (Average sunshine: 7h and 12min).
The month with the least sunshine is March (Average sunshine: 2h and 18min).
Average UV index in December
Macau, China
- Average UV index in December: 7
The months with the highest UV index are April, May, June, July and August (UV index 12).
The months with the lowest UV index are January, November and December (UV index 7).
