Climate averages 1991–2020

Kwai Chung weather
in December.

A mild, fairly dry month: the 11th warmest and the 2nd driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 20.0°C Daytime mean, December
Average low 13.9°C Night-time mean, December
Rainfall 34 mm 5 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Kwai Chung · average highYear overview

December is a mild month in Kwai Chung: daytime highs average 20.0°C and nights cool to about 13.9°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 34 mm of rain on roughly 5 days, which makes December a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 48 min on an average December day.

The nearest other city in this atlas is Sha Tin (5 km away). In December its highs average 19.6°C, about as warm as Kwai Chung, with 29 mm of rain.

Among the 6 cities listed in Hong Kong, Kwai Chung ranks 4th of 6 for the warmest December highs and joint 5th of 6 for the driest December (rainfall, lowest first). The mean December high of those 6 cities is 20.0°C; Kwai Chung is level with that mean.

From December to January, average highs fall by 1.2°C to 18.9°C, and monthly rainfall falls from 34 mm to 29 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Kwai Chung climate table

1991–2020
Monthly climate averages for Kwai Chung, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 18.9°C12.8°C12.8°C295.010.911 h
February 20.1°C14.4°C14.4°C448.211.411 h
March 22.8°C17.2°C17.2°C6910.412.012 h
April 25.7°C20.5°C20.5°C11612.612.713 h
May 28.0°C23.5°C23.5°C21017.313.213 h
June 29.3°C25.4°C25.4°C30821.513.513 h
July 30.0°C25.9°C25.9°C24820.413.413 h
August 30.0°C25.7°C25.7°C30721.912.913 h
September 29.2°C24.6°C24.6°C21416.212.312 h
October 27.2°C22.0°C22.0°C756.611.612 h
November 24.1°C18.4°C18.4°C395.111.111 h
December, selected 20.0°C13.9°C13.9°C344.510.811 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

December in nearby cities

Distance from Kwai Chung

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Kwai Chung) is explained once on the Kwai Chung year overview and on the Sources, method and limits page.

Hong Kong lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.