December weather forecast
Sai Shan, Hong Kong

December

Weather in December

December, the first month of the winter in Sai Shan, is also an enjoyable month, with an average temperature fluctuating between 19.6°C (67.3°F) and 16.2°C (61.2°F).

Temperature

December indicates a minor shift in the average high-temperature, from November's warm 23.9°C (75°F) to an enjoyable 19.6°C (67.3°F). Sai Shan's nighttime temperatures in December see a subtle dip to an average of 16.2°C (61.2°F).

Humidity

The least humid month is December, with an average relative humidity of 70%.

Rainfall

The month with the least rainfall is December, when the rain falls for 11.2 days and typically collects 23mm (0.91") of precipitation.

Daylight

The month with the shortest days is December, with an average of 10h and 48min of daylight.
On the first day of December in Sai Shan, sunrise is at 06:46 and sunset at 17:38. On the last day of the month, sunrise is at 07:02 and sunset at 17:50 HKT.

Sunshine

In Sai Shan, the average sunshine in December is 5.4h.

UV index

In Sai Shan, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 5 transforms into these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What is the temperature in December in Sai Shan?
During December, Sai Shan experiences an average high-temperature of 19.6°C (67.3°F) and a low-temperature of 16.2°C (61.2°F). In October, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 29°C (84.2°F).
What is the least humid month in Sai Shan?
With an average relative humidity of 70%, December is the least humid month in Sai Shan.
What is the average humidity in December in Sai Shan?
In December, the average relative humidity in Sai Shan is 70%.
What is the driest month in Sai Shan?
December is the month with the least rainfall in Sai Shan. Rain falls for 11.2 days and accumulates 23mm (0.91") of precipitation.
How much does it rain in Sai Shan in December?
In Sai Shan, during December, the rain falls for 11.2 days and regularly aggregates up to 23mm (0.91") of precipitation.
What is the month with the shortest days in Sai Shan?
December has the shortest days of the year in Sai Shan, with an average of 10h and 48min of daylight.
What is the average length of the day in December in Sai Shan?
In Sai Shan, Hong Kong, the average day length in December is 10h and 48min.
When are sunrise and sunset in December in Sai Shan?
In December, on the first day of the month, sunrise is at 06:46 and sunset at 17:38. On the last day of the month, in Sai Shan, sunrise is at 07:02 and sunset at 17:50 HKT.
How long on average sun shines in December in Sai Shan?
In December, the average sunshine duration in Sai Shan, Hong Kong, is 5.4h.
How high is the UV index in December in Sai Shan?
In Sai Shan, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Sai Shan, Hong Kong
Average temperature in December
Sai Shan, Hong Kong
  • Average high temperature in December: 19.6°C

The warmest month (with the highest average high temperature) is August (30.5°C).
The month with the lowest average high temperature is January (18.5°C).

  • Average low temperature in December: 16.2°C

The month with the highest average low temperature is August (27.7°C).
The coldest month (with the lowest average low temperature) is January (15°C).

Average pressure in December - Sai Shan, Hong Kong
Average pressure in December
Sai Shan, Hong Kong
  • Average pressure in December: 1019.6mbar

The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is August (1004.8mbar).

Average wind speed in December - Sai Shan, Hong Kong
Average wind speed in December
Sai Shan, Hong Kong
  • Average wind speed in December: 16km/h

The windiest month (with the highest average wind speed) is December (16km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).

Average humidity in December - Sai Shan, Hong Kong
Average humidity in December
Sai Shan, Hong Kong
  • Average humidity in December: 70%

The month with the highest relative humidity is May (84%).
The month with the lowest relative humidity is December (70%).

Average rainfall in December - Sai Shan, Hong Kong
Average rainfall in December
Sai Shan, Hong Kong
  • Average rainfall in December: 23mm

The wettest month (with the highest rainfall) is August (223mm).
The driest month (with the least rainfall) is December (23mm).

Average rainfall days in December - Sai Shan, Hong Kong
Average rainfall days in December
Sai Shan, Hong Kong
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is December (11.2 days).

Average daylight in December / Average sunshine in December - Sai Shan, Hong Kong
Average daylight in December /
Average sunshine in December
Sai Shan, Hong Kong
  • Average daylight in December: 10h and 5min

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 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is March (Average sunshine: 5h and 18min).

Average sunshine days in December - Sai Shan, Hong Kong
Average sunshine days in December
Sai Shan, Hong Kong
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is July (3.1 days).

Average UV index in December - Sai Shan, Hong Kong
Average UV index in December
Sai Shan, Hong Kong
  • Average UV index in December: 5

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

Average cloud cover in December - Sai Shan, Hong Kong
Average cloud cover in December
Sai Shan, Hong Kong
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 61).
The months with the least cloud cover are September and October (Cloud cover 35).

Average visibility in December - Sai Shan, Hong Kong
Average visibility in December
Sai Shan, Hong Kong
  • Average visibility in December: 10km

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

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