WALVIS BAY, NAMIBIA

Average Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15		17		18		17		16		16		15		14		13		13		13		15		16

Average High Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17		18		19		18		17		18		17		16		15		15		15		16		17

Average Low Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13		16		16		16		14		13		13		11		11		11		12		13		15

Highest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		37		30		31		33		32		36		37		37		35		30		26		25		23

Lowest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6		12		12		11		10		7		7		7		6		7		9		11		12

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
mm		10		---		---		---		---		---		---		---		---		---		---		---		---

Most Rain Reported in a Month

Years on Record: 88

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		80		20		50		70		70		10		---		10		---		20		10		---		---

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
C		13		15		16		15		13		12		11		10		10		11		12		13		14

Heating Degree Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1058.8		25.8		7.8		25.8		75		68.9		83.3		129.2		163.6		150		129.2		91.7		60.3

Growing Degree Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2191.6		232.5		227.6		232.5		175		189.4		166.7		129.2		94.7		100		129.2		158.3		198.1

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
km/h		27		22		22		25		25		27		28		30		32		27		28		27		27

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.9		20.8		20.2		18.5		17		14.8		14		14.3		16.1		18		18.8		21.1		21.5

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		9.2		8.5		7.2		5.5		4.3		3.6		3.9		5		6.5		8.1		8.9		9.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.8		19.1		19.1		18.8		19		18.2		17.7		17.5		18.8		18.9		18.2		19.6		21.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.2		16.6		16.9		17.1		19.1		19.7		21.1		20.2		19.4		17.9		15.8		17.6		17.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.9		20.8		20.2		18.5		17		14.8		14		14.3		16.1		18		18.8		21.1		21.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.1		9.5		8.7		7.6		6		5.1		4.1		4.5		5.5		6.9		8.3		9.2		9.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.6		21.9		21		23		22.5		21.3		20.7		19.1		21.4		21.1		21		21.5		24.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.2		22.2		20.3		24.7		25.1		24.9		26.6		23.3		23.9		21.7		20.7		21.5		23.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.5		18.6		18.4		16.9		15		11.4		12.7		12.2		13.9		16		15.9		16.5		18.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		8.7		8.1		6.1		4.6		3.5		2.7		3.5		4.3		6		7.5		8.5		8.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.1		17.2		17.4		17		16.5		13.4		15.6		14.5		15.8		16.7		15.4		15.5		17.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.6		13.1		14		14		14.9		11.9		17.3		15		14.7		14.3		11.1		10.6		12.4