GOUGH ISLAND, SAINT HELENA

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Elevation: 177 feet Latitude: 40 21S Longitude: 009 53W

WEATHER

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

03:18 am

01:56 pm
Local Time
6:12 pm EDT
24 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		54		58		58		58		56		53		51		49		49		49		51		54		57

Average High Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56		62		62		61		58		55		53		52		51		51		54		58		60

Average Low Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50		54		55		54		53		50		48		46		46		45		48		51		53

Highest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		88		80		79		75		72		66		69		65		73		66		79		72		88

Lowest Recorded Temperature

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		26		44		44		43		32		30		36		32		26		34		36		32		37

Average Number of Days Above 65F/18C

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33		7		8		8		3		---		---		---		---		---		---		2		4

PRECIPITATION

Average Precipitation

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		126.8		8.3		7.2		9.9		11		11.1		12.8		11.1		12.7		10.7		11.6		10.1		10.1

PRECIPITATION - RAIN

Most Rain Reported in a Month

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		148.8		15		11.4		20.2		19.1		20.7		22.8		20.4		28.1		23.1		23.2		16.3		19.8

Least Recorded Rainfall

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		10		3.1		2.6		4		5.4		5.2		5.8		5.6		6		2.4		5.2		5.4		4.9

HUMIDITY

Average Morning Relative Humidity

Years on Record: 14

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

Average Evening Relative Humidity

Years on Record: 8

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		79		79		77		80		81		82		81		80		80		79		78		78		77

Average Dew Point

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		48		52		52		52		50		47		46		44		43		43		45		48		50

DEGREE DAYS

Heating Degree Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4270.6		217		183.6		232.5		285		387.5		435		496		511.5		510		434		315		263.5

Growing Degree Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1345.6		248		240.1		232.5		165		77.5		15		---		---		---		31		135		201.5

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		15.2		14.1		12.8		11.4		10.4		9.8		10.1		11.1		12.3		13.7		14.9		15.5

Average Number of Days With Fog

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29		3		2		5		3		3		2		2		2		2		1		2		2

WIND

Average Wind Speed

Years on Record: 11

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

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		3.8		5.9		5.4		4.1		2.9		2		1.6		1.7		2.4		3.6		4.7		5.6		6.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		2.5		2.1		1.7		1.2		0.8		0.7		0.8		1.1		1.5		2		2.4		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		4.2		5.3		5.2		4.5		3.8		3.1		2.6		2.8		3.2		4.2		4.7		5.1		5.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		5.3		5.2		4.3		3.6		3.2		2.6		2.8		3.2		4		4.5		5		5.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		5.9		5.4		4.1		2.9		2		1.6		1.7		2.4		3.6		4.7		5.6		6.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		2.6		2.2		1.7		1.2		0.9		0.7		0.8		1.1		1.5		2		2.5		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		4.8		5.9		5.9		5.5		4.2		3.8		3.1		3.3		3.8		5		5.3		5.6		6.1

Maximum 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		6.4		6.4		5.9		4.3		4.1		3.2		3.4		4		5.2		5.4		6		7.1

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.4		5.4		4.9		3.8		2.5		1.7		1.3		1.5		2		3.1		4.2		4.9		5.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		2.4		2		1.5		1.2		0.8		0.7		0.8		1		1.4		1.9		2.3		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		3.6		4.9		4.8		4.1		3.1		2.4		2.1		2.4		2.6		3.5		4.2		4.5		4.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.2		4.4		4.4		3.6		2.6		2.2		1.9		2.2		2.3		3		3.6		3.8		4.1

NEARBY - MAP

NEARBY - LIST

Gough Island, Saint Helena (0 mi / 0 km)
Settlement of Edinburgh, Saint Helena (262 mi / 423 km)

GEOBA.SE

Gough Island, Saint Helena