yearsofweather

Hong Kong in December:
cool and fresh, only a little rain

Hong Kong · Records from 2006 to 2025. Not a forecast.

Mean high21°Hottest day 28.1° (2018)
Mean low16°Coldest night 6.1° (2010)
Rain days3 days0-7 by year
Rainfall23mmDaylight 10.9 → 10.8 h
Hong Kong's 12 months iBest: March, November and December
Trip types Beach Poorcool seaSightseeing on foot Goodmild and mostly dry
Humidity70%1 muggy day
Clear days11 days7 overcast days
Mean wind13 km/hRarely windy
Sea temperature21.2°20.2-22.1° by year (last 6)
Sunrise / sunset (15th)06:55 / 17:42Daylight 10.9 → 10.8 h

Hong Kong in December

The driest month of the year. Stable weather means you can plan long outdoor days. In the second half of the month cold air arrives now and then, so bring a light layer.

Highs averaged 21°C and lows 16°C, an easy range for walking around all day. Day and night differed by only 4°C, so one outfit worked from breakfast to late dinner. Rain fell on only 3 days on average. December could skip rain entirely: 4 of 20 years had none, while 2009 had 7 rain days.

The warmest year was 2025, with highs averaging 22.6°C, 2.1°C above normal.

Typhoons i

1 of the last 20 years had a tropical storm pass within 300 km this month.

  • Rai (2021), 182 km away tropical storm
1 2 3 14 15 86 67 128 79 310 411 112

Date by date i

‹ November December 2026 January ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-5rain on 8% of days22° 17°
6-12rain on 6% of days22° 17°
13-19rain on 14% of days20° 16°
20-26rain on 9% of days20° 16°
27-31rain on 9% of days19° 15°

0-5/206-8/209-11/2012-20/20

1-5rain on 8% of days22° 17°
6-12rain on 6% of days22° 17°
13-19rain on 14% of days20° 16°
20-26rain on 9% of days20° 16°
27-31rain on 9% of days19° 15°
Tap another date to change

2006none
2007none
2008none
20092mm
20105mm
2011none
2012none
201318mm
2014none
2015none
2016none
2017none
2018none
2019none
2020none
2021none
20221mm
20231mm
2024none
2025none
Holidays in December (2026)
  • December 25 to December 27 Christmas long weekend
  • December 26 The first weekday after Christmas Day
  • December 25 Christmas Day

1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)

Day by day temperature i

8°15°23°30° 1815222931

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
0 d 2 d
2007
0 d 1 d
2008
0 d 2 d
2009
3 d 7 d
2010
0 d 3 d
2011
0 d 0 d
2012
0 d 6 d
2013
0 d 4 d
2014
1 d 7 d
2015
4 d 7 d
2016
0 d 3 d
2017
0 d 0 d
2018
0 d 1 d
2019
0 d 2 d
2020
0 d 0 d
2021
0 d 5 d
2022
0 d 3 d
2023
1 d 2 d
2024
0 d 0 d
2025
0 d 3 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
1
2
2
1
2
2
2
2
2
1
0
0
1
3
4
5
2
3
2
1
2
1
2
3
2
1
1
0
4
4
0
Rain days on trip
00030000140000000100

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2011 had 0 rain days, 2009 had 7.

Hong Kong through the year

MonthHighLowRain daysRainfallSea
January 19°15°3 days34mm 19°
February 20°15°4 days37mm 19°
MarchGood 22°18°6 days83mm 21°
April 26°21°8 days157mm 23°
May 29°25°12 days318mm 27°
June 31°27°17 days486mm 28°
July 32°27°15 days361mm 30°
August 31°27°16 days416mm 29°
September 31°26°12 days358mm 29°
October 28°24°6 days203mm 28°
NovemberGood 25°20°4 days56mm 24°
DecemberGood 21°16°3 days23mm 21°

Common questions

Does it rain a lot in Hong Kong in December?

Over the past 20 years December averaged 3 rain days (1 mm or more) out of 31. Individual years ran from 0 in the driest to 7 in the wettest.

What should I wear in Hong Kong in December?

Days averaged 21°C and nights 16°C. Pack a light layer for the evenings, T-shirts, and sunscreen plus a hat.

Can you swim in Hong Kong in December?

Sea surface temperature averaged 21.2°C in December, cool when you first get in. Year to year it ranged 20.2-22.1°C. Check local flags for waves and jellyfish on the day.

Is December a good time to visit Hong Kong?

On warmth and rain days alone, Hong Kong's easiest months were March, November and December. December ranked 2 of 12, close to the top.

How many clear days does Hong Kong get in December?

About 11 clear days (under 30% cloud on average) and 7 overcast days (80% or more).