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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 July 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		1014.8	hPa	30/7/1934
	Mean		1005.5	hPa
	Absolute Minimum		975.8	hPa	29/7/1896
	Mean Diurnal Range		3.4	hPa
AIR TEMPERATURE	Absolute Maximum		35.7	deg. C	25/7/1968
	Mean Daily Maximum		31.3	deg. C
	Mean		28.7	deg. C
	Mean Daily Minimum		26.7	deg. C
	Absolute Minimum		21.7	deg. C	30/7/1989
RELATIVE HUMIDITY	Mean		81	%
	Absolute Minimum		43	%	25/7/1968
AMOUNT OF CLOUD			68	%
RAINFALL	Total		374.4	mm
	Duration		80	hours
	Number of Days with	0.1 mm or above	17.77
		25.0 mm or above	4.67
		50.0 mm or above	2.40
	Maximum Hourly		115.1	mm	16/7/2006
	Maximum Daily		534.1	mm	19/7/1926
	Maximum Monthly		1147.2	mm	1994
NUMBER OF DAYS WITH THUNDERSTORM			5.90
NUMBER OF DAYS WITH FOG (Visibility < 1000 m)			0
SOIL TEMPERATURE AT 0700 HOURS	0.5 m		29.8	deg. C
	1.0 m		29.0	deg. C
BRIGHT SUNSHINE AT KING'S PARK	Duration		214.9	hours
	Percentage of Possible		52	%
WIND AT WAGLAN ISLAND	Prevailing Direction		230	degrees
	Mean Speed		21.9	km/h
	Maximum Gust #		158	km/h	16/7/1973
SEA SURFACE TEMPERATURE AT NORTH POINT AT 0700 HOURS **			26.7	deg. C

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

 #  1953 - 2007
** 1975 - 2007