MARION ISLAND, SOUTH AFRICA

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Elevation: 21 meters Latitude: 46 53S Longitude: 037 52E

WEATHER

Monthly - Summary

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Forecast

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

12:29 am

10:21 am
Local Time
5:44 am EDT
2 May, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6		7		8		7		6		5		5		4		3		4		5		6		7

Average High Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7		9		10		9		8		7		6		6		5		5		6		7		8

Average Low Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4		6		6		6		5		3		3		2		2		2		3		3		5

Highest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		22		20		22		21		17		20		17		12		20		13		16		22		19

Lowest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-8		-8		---		---		-5		-4		-4		-6		-3		-3		-3		---		---

Average Number of Days Above 50F/10C

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		82		13		16		14		9		5		3		1		1		1		3		6		10

Average Number of Days Below 32F/0C

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26		---		---		---		---		1		3		5		7		5		3		1		---

PRECIPITATION

Average Precipitation

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2400		210		180		210		210		220		200		200		180		180		170		180		210

PRECIPITATION - RAIN

Most Rain Reported in a Month

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2940		350		340		400		360		420		450		320		250		350		290		310		330

Least Recorded Rainfall

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1900		80		50		50		100		90		100		100		80		110		60		50		100

HUMIDITY

Average Morning Relative Humidity

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		86		87		87		87		87		86		88		87		85		85		84		84		85

Average Evening Relative Humidity

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		82		81		82		82		83		83		85		84		82		82		80		79		80

Average Dew Point

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3		5		5		5		4		3		2		2		1		1		2		2		3

DEGREE DAYS

Heating Degree Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4818		327.2		290.3		327.2		350		396.1		400		430.6		447.8		425		413.3		375		353.1

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		16		14.5		12.9		11.2		9.8		9.2		9.5		10.7		12.3		14		15.6		16.5

Average Number of Days With Fog

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		48		4		5		5		6		3		4		4		4		3		2		4		4

WIND

Average Wind Speed

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		41		38		41		40		38		41		46		43		41		45		41		40		41

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.1		18.7		16.4		11.8		7.4		4.8		3.4		4		6.4		9.7		13.8		17.4		18.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		9.8		8.5		6.1		3.9		2.9		2.2		2.5		3.6		5.5		7.7		9.4		10.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.8		16.7		16.1		13.2		9.7		7.5		5.5		6.2		9.1		11.3		13.9		15.8		16.4

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.1		14.6		13.9		11.4		8.8		6.5		4.9		5.6		8		9.1		11		13.3		14.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.1		18.7		16.4		11.8		7.4		4.8		3.4		4		6.4		9.7		13.8		17.4		18.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		9.9		8.5		6.4		4.1		3		2.5		2.7		3.8		5.8		7.7		9.4		10.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.5		18.6		18.6		15.7		10.8		8.3		7		7.1		10.4		13.3		15.4		18.3		17.9

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.5		18.3		18.1		14.5		9.9		7.3		6.5		6.6		9.4		11.5		13.4		17.8		17

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.4		15.6		14.7		9.9		6.2		4.1		3		3.5		5.4		8.7		11		15.6		15.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		9.6		8.3		5.8		3.5		2.6		2		2.3		3.2		5.3		7.2		9.2		9.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.9		14		14.2		10.7		7.9		6.1		4.6		5.1		7.4		9.9		10.8		14.2		13.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.5		9.9		10.8		8.2		6.7		5		3.9		4.4		6.2		7.4		6.8		10.6		9.4

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Marion Island, South Africa