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Climatological Information of World Cities for Travellers

Climate of Hong Kong

Meteorological Normals and Extremes for Hong Kong
(grouped by elements)

5-Day Normals of the Meteorological Elements for Hong Kong (1971-2000)

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Monthly Normals of Meteorological Elements for April 1971-2000,
with Extreme Values between 1884-1939 and 1947-2007 for Hong Kong
 

Meteorological Elements					Date on which extreme value was recorded
ATMOSPHERIC PRESSURE	Absolute Maximum		1028.4	hPa	9/4/1925
	Mean		1012.8	hPa
	Absolute Minimum		999.9	hPa	2/4/1924
	Mean Diurnal Range		3.9	hPa
AIR TEMPERATURE	Absolute Maximum		33.4	deg. C	27/4/1956
	Mean Daily Maximum		25.1	deg. C
	Mean		22.5	deg. C
	Mean Daily Minimum		20.6	deg. C
	Absolute Minimum		9.9	deg. C	5/4/1969
RELATIVE HUMIDITY	Mean		83	%
	Absolute Minimum		22	%	17/4/1922
AMOUNT OF CLOUD			80	%
RAINFALL	Total		188.5	mm
	Duration		87	hours
	Number of Days with	0.1 mm or above	11.67
		25.0 mm or above	2.57
		50.0 mm or above	1.23
	Maximum Hourly		92.4	mm	30/4/1975
	Maximum Daily		190.2	mm	4/4/1966
	Maximum Monthly		547.7	mm	2000
NUMBER OF DAYS WITH THUNDERSTORM			4.20
NUMBER OF DAYS WITH FOG (Visibility < 1000 m)			1.13
SOIL TEMPERATURE AT 0700 HOURS	0.5 m		23.4	deg. C
	1.0 m		22.8	deg. C
BRIGHT SUNSHINE AT KING'S PARK	Duration		101.8	hours
	Percentage of Possible		27	%
WIND AT WAGLAN ISLAND	Prevailing Direction		070	degrees
	Mean Speed		21.2	km/h
	Maximum Gust #		135	km/h	11/4/1990
SEA SURFACE TEMPERATURE AT NORTH POINT AT 0700 HOURS **			20.9	deg. C

Note : All measurements were made at the Hong Kong Observatory except where specified.

 #  1953 - 2007
** 1975 - 2007