December weather forecastJiangmen, China

December

Weather in December

December bids farewell to the year with noticeably lower temperatures in Jiangmen, shifting away from the milder climate of November. The month experiences its poorest rainfall at just 10mm (0.39") over approximately 6.8 days, closing the year on a dry note. Temperatures also lie on the lower end of the spectrum for the year, between 13.5°C (56.3°F) and 19.9°C (67.8°F), providing some relief from the heat the city experiences in other months. The gentle breeze that sways through the city, at an average of 10.4km/h (6.5mph), adds to the delight of a cooler climate. The longer nights combined with shorter days, averaging 10.8 hours of daylight, create a charming ambiance, making festive celebrations more memorable. Overall, the colder weather, sparse rain, and cool winds provide the city with much-needed climate variety as the year draws to an end.

Temperature

As November shifts into December in Jiangmen, a slight alteration in temperatures is observed, with average highs reducing from a moderately hot 25.3°C (77.5°F) to a refreshing 19.9°C (67.8°F). The nights of December in Jiangmen, China, anticipate an average low-temperature of 13.5°C (56.3°F).

Humidity

With an average relative humidity of 64%, December is the least humid month in Jiangmen.

Rainfall

In Jiangmen, China, in December, during 6.8 rainfall days, 10mm (0.39") of precipitation is typically accumulated. Throughout the year, in Jiangmen, there are 170.3 rainfall days, and 500mm (19.69") of precipitation is accumulated.

Daylight

With an average of 10h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:51 and sunset at 17:42. On the last day of December, sunrise is at 07:07 and sunset at 17:54 CST.

Sunshine

In December, the average sunshine is 5.5h.

UV index

January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 4 during December, leads to the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

December temperatures in Jiangmen vary between a high-temperature of 19.9°C (67.8°F) and a low-temperature of 13.5°C (56.3°F). In October, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 33°C (91.4°F).

December is the least humid month in Jiangmen, China, with an average relative humidity of 64%.

The average relative humidity in December in Jiangmen, China, is 64%.

In Jiangmen, in December, it is raining for 6.8 days, with typically 10mm (0.39") of accumulated precipitation.

December has the shortest days of the year in Jiangmen, China, with an average of 10h and 48min of daylight.

The average day length in December in Jiangmen is 10h and 47min.

In December, on the first day of the month, sunrise is at 06:51 and sunset at 17:42. On the last day of the month, sunrise is at 07:07 and sunset at 17:54 CST.

The average sunshine duration in December in Jiangmen is 5.5h.

The months with the lowest UV index in Jiangmen are January and December, with an average maximum UV index of 4.

In Jiangmen, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Jiangmen, China

  • Average high temperature in December: 19.9°C

The warmest month (with the highest average high temperature) is August (33.1°C).
The month with the lowest average high temperature is January (19°C).

  • Average low temperature in December: 13.5°C

The month with the highest average low temperature is August (26.5°C).
The coldest month (with the lowest average low temperature) is January (12.8°C).

Average pressure in December
Jiangmen, China

  • Average pressure in December: 1020.1mbar

The month with the highest atmospheric pressure is January (1020.7mbar).
The month with the lowest atmospheric pressure is August (1004.6mbar).

Average wind speed in December
Jiangmen, China

  • Average wind speed in December: 10.4km/h

The windiest month (with the highest average wind speed) is December (10.4km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).

Average humidity in December
Jiangmen, China

  • Average humidity in December: 64%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is December (64%).

Average rainfall in December
Jiangmen, China

  • Average rainfall in December: 10mm

The wettest month (with the highest rainfall) is August (89mm).
The driest month (with the least rainfall) is January (6mm).

Average rainfall days in December
Jiangmen, China

  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is July (22.2 days).
The month with the least rainy days is December (6.8 days).

Average daylight in December /
Average sunshine in December
Jiangmen, 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 30min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is March (Average sunshine: 4h and 42min).

Average sunshine days in December
Jiangmen, China

  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is July (6.9 days).

Average UV index in December
Jiangmen, China

  • Average UV index in December: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in December
Jiangmen, China

  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 64).
The month with the least cloud cover is October (Cloud cover 38).

Average visibility in December
Jiangmen, China

  • Average visibility in December: 10km

The months with the highest visibility are January, February, October, November and December (10km).
The months with the lowest visibility are March, April, May, June, July, August and September (9km).