JEFFREY'S BAY, SOUTH AFRICA

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Elevation: 33 meters Latitude: 34 03S Longitude: 024 55E

WEATHER

Monthly - Summary

Nearby

Forecast

Monthly - All Data

Climate Summary

CURRENT CONDITIONS

Sunrise/Set

12:52 am

11:43 am
Local Time
12:31 pm EDT
27 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17.3		20.9		20.6		19.7		17.8		16.3		14.8		14.3		14.4		15.3		16.5		17.8		19.7

PRECIPITATION

Average Precipitation

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		618.2		36.7		39.3		48.4		58.9		51.7		60.1		57.3		68.2		53.7		63		49		31.9

Average Number of Days With Precipitation

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		104.1		7.4		7.4		9.2		8.6		8.1		8		8.2		9.9		9		10.6		9.5		8.2

PRECIPITATION - SNOW

Average Number of Days With Frost

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.8		---		---		---		---		0.4		1.2		1.8		1		0.3		0.1		---		---

HUMIDITY

Average Relative Humidity

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		78.5		79		81.1		82.3		81.2		76.4		73.3		74.2		76.2		79		79.9		80.2		78.9

Average Dew Point

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.5		17.1		17.2		16.6		14.5		12.1		10.1		9.8		10.3		11.7		13		14.3		15.9

DEGREE DAYS

Heating Degree Days

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		595		---		---		---		15.9		62.9		105.9		124.9		121.8		90.9		56.7		15.9		---

Cooling Degree Days

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		228.7		79.7		64.1		42.5		---		---		---		---		---		---		---		---		42.5

Growing Degree Days

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2676.3		337.9		299.5		300.7		234		195.3		144		133.3		136.4		159		201.5		234		300.7

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		14.6		13.7		12.7		12.7		10.8		10.4		10.6		11.3		12.3		13.4		14.4		14.9

Average Possibility of Sunshine

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		61.5		62.4		61.2		59.9		60.9		61.3		62.5		66		63.9		58.4		58.5		60.2		63.1

WIND

Average Wind Speed

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		16.1		18.7		17.6		15.1		13.3		12.6		12.6		13.7		15.5		16.6		19.1		19.1		18.7

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		17.4		24.6		21.5		18		14.3		11.5		9.9		10.9		13.6		16.9		19.8		22.9		25.1

Average 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		8.6		7.6		6.2		4.5		3.1		2.6		2.7		3.6		5.3		7.1		8.3		8.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.2		21.9		20.8		19.4		18.1		16.9		16.1		17.1		18		19.4		19.7		20.9		22

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		23.8		21.4		19.7		19		19.3		18.7		20		20.6		20.3		19.9		21.9		24.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.4		24.6		21.5		18		14.3		11.5		9.9		10.9		13.6		16.9		19.8		22.9		25.1

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		9.1		8.2		6.7		4.9		3.3		3		3.1		4.3		5.9		7.6		9.1		9.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.5		24.4		24.2		21.9		20.6		18.5		17.8		18.7		20.1		21.5		22.9		23.8		24.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		25.2		29.5		28.2		24.1		23		22		21.3		22.7		24.1		23.9		26.1		28.2		29.6

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		22.1		18.8		14.6		12.5		10.9		8.6		9.9		11.6		14.1		17.4		17.4		22.1

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		7.6		6.6		5.5		3.9		2.8		2.3		2.4		3.1		4.8		6.2		7.4		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		16.3		19.9		18.1		15.3		15.4		15.6		13.3		14.9		14.7		15.7		17.1		16		19.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.7		19.4		16.2		13.1		14.7		17.4		14.4		16.6		15.2		14.4		15.4		12.4		18.7

NEARBY - MAP

NEARBY - LIST

Kruisfontein, South Africa (11 mi / 18 km)
Oesterbaai, South Africa (11 mi / 18 km)
Uitenhage, South Africa (34 mi / 55 km)
Port Elizabeth, South Africa (39 mi / 63 km)
Kirkwood, South Africa (53 mi / 85 km)

GEOBA.SE

Jeffrey's Bay, South Africa