SWELLENDAM, SOUTH AFRICA

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Elevation: 436 feet Latitude: 34 01S Longitude: 020 27E

WEATHER

Monthly - Summary

Nearby

Forecast

Monthly - All Data

Climate Summary

CURRENT CONDITIONS

Sunrise/Set

01:12 am

11:59 am
Local Time
4:38 am EDT
29 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		63.7		72.7		72.7		70.2		65.3		59.5		55.6		54.1		55.2		58.5		62.8		67.1		70.5

PRECIPITATION

Average Precipitation

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		24.6		1.8		2.1		2		2.6		2.1		1.8		2		2.7		1.7		2.4		1.9		1.3

Average Number of Days With Precipitation

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		90.4		5.4		6.3		7.2		7.6		8.3		8.5		8.3		9.8		8.4		8.3		7		5.3

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		20.7		---		---		---		0.2		2		4.5		6.1		4.8		2.4		0.7		---		---

HUMIDITY

Average Relative Humidity

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		69.2		64.4		66.5		68.6		70.9		72.1		72.3		73.2		72.5		71.8		68.3		66		64.2

Average Dew Point

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		53.4		60		60.9		59.4		55.6		50.5		46.8		45.7		46.5		49.4		52.2		55.4		57.8

DEGREE DAYS

Heating Degree Days

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1357.4		---		---		---		---		170.5		282		337.9		303.8		195		68.2		---		---

Cooling Degree Days

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		859.9		238.7		217.5		161.2		9		---		---		---		---		---		---		63		170.5

Growing Degree Days

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4981.3		703.7		641.3		626.2		459		294.5		168		127.1		161.2		255		396.8		513		635.5

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
%		62.5		68.3		65.6		63.2		59.9		58.4		58.7		62.1		61.8		60.9		61		62.9		66.9

WIND

Average Wind Speed

Years on Record: 112

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		8.9		10.1		9.6		8.5		7.6		7.4		7.4		7.8		8.5		9.2		9.8		10.5		10.5

SOLAR RADIATION

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		8.3		7.3		5.9		4.4		3.3		2.7		3		3.9		5.2		6.5		7.7		8.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		1.8		1.7		1.4		1.1		0.8		0.7		0.8		1		1.3		1.7		1.9		2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6		7.3		7.1		6.5		5.7		4.9		4.4		4.7		5.2		6		6.5		7		7.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.2		9.6		8.7		7.5		6.3		5.7		5.1		5.5		6.1		6.7		7.6		8.7		9.2

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		8.3		7.3		5.9		4.4		3.3		2.7		3		3.9		5.2		6.5		7.7		8.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		2.1		1.9		1.7		1.3		1		0.8		0.9		1.2		1.5		2		2.4		2.6

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		7.7		7.6		6.9		6.3		5.6		5.3		5.2		5.7		6.7		7.3		7.5		7.8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		8.4		10.6		9.7		8.2		7.4		6.9		6.6		6.3		7		7.9		9.2		10.1		11

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.8		7.8		6.8		5.1		3.9		2.8		2.4		2.6		3.4		4.7		5.5		6.1		6.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.1		1.6		1.4		1.3		0.9		0.7		0.6		0.7		0.8		1.1		1.3		1.6		1.6

Minimum 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		6.9		6.6		5.5		4.9		3.9		3.6		3.9		4.3		5.4		5.5		5.6		5.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.6		8.5		7.6		5.7		5		4.2		3.9		4.2		4.5		5.7		5.6		5.6		6

NEARBY - MAP

NEARBY - LIST

Bredasdorp, South Africa (41 mi / 67 km)
Agulhas, South Africa (42 mi / 67 km)
Matroosberg, South Africa (54 mi / 87 km)
Caledon, South Africa (59 mi / 96 km)
Cape Agulhas, South Africa (60 mi / 98 km)

GEOBA.SE

Swellendam, South Africa