WALVIS BAY, NAMIBIA

Average Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		60		64		65		63		61		61		60		58		56		56		57		59		62

Average High Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		63		66		67		66		63		65		64		62		59		59		60		62		64

Average Low Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57		61		62		61		58		57		56		53		52		53		55		57		59

Highest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		100		86		88		92		91		97		100		100		95		86		79		77		75

Lowest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		43		54		55		52		51		46		45		45		43		46		49		52		54

Average Number of Days Above 80F/26C

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		---		---		---		1		2		3		2		1		---		---		---		---

Average Precipitation

Years on Record: 88

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		0.5		0.1		0.1		0.1		0.1		---		---		---		---		---		---		---		---

Most Rain Reported in a Month

Years on Record: 88

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		3.5		0.9		2.3		2.9		2.9		0.6		0.2		0.6		0.3		0.9		0.4		0.2		0.2

Average Morning Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		93		94		94		95		96		90		85		88		93		94		94		94		95

Average Evening Relative Humidity

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		84		86		86		87		87		81		78		78		83		85		86		86		85

Average Dew Point

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56		60		61		60		57		55		52		51		51		53		54		56		58

Heating Degree Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1819.1		46.5		14.1		46.5		135		124		150		232.5		294.5		270		232.5		165		108.5

Growing Degree Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3659.6		418.5		409.6		418.5		315		341		300		232.5		170.5		180		232.5		285		356.5

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		13.8		13.2		12.6		11.9		11.4		11.2		11.3		11.7		12.4		13		13.6		13.9

Average Number of Days With Fog

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		149		8		8		12		19		17		14		16		16		12		10		8		9

Average Wind Speed

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		17		14		14		16		16		17		18		19		20		17		18		17		17

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		5.8		5.6		5.2		4.7		4.1		3.9		4		4.5		5		5.2		5.9		6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.9		2.6		2.4		2		1.5		1.2		1		1.1		1.4		1.8		2.2		2.5		2.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.2		5.3		5.3		5.2		5.3		5.1		4.9		4.9		5.2		5.3		5.1		5.4		5.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.1		4.6		4.7		4.8		5.3		5.5		5.9		5.6		5.4		5		4.4		4.9		4.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		5.8		5.6		5.2		4.7		4.1		3.9		4		4.5		5		5.2		5.9		6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2		2.6		2.4		2.1		1.7		1.4		1.1		1.3		1.5		1.9		2.3		2.6		2.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6		6.1		5.8		6.4		6.3		5.9		5.8		5.3		5.9		5.9		5.8		6		6.9

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.5		6.2		5.7		6.9		7		6.9		7.4		6.5		6.6		6		5.8		6		6.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		5.2		5.1		4.7		4.2		3.2		3.5		3.4		3.9		4.5		4.4		4.6		5.1

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		2.4		2.3		1.7		1.3		1		0.8		1		1.2		1.7		2.1		2.4		2.4

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		4.8		4.8		4.7		4.6		3.7		4.3		4		4.4		4.6		4.3		4.3		4.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		3.7		3.9		3.9		4.2		3.3		4.8		4.2		4.1		4		3.1		2.9		3.4