Frost Dates for GOUGH ISLAND, Saint Helena

Elevation: 48 m

Frost Dates

This location never reaches freezing temperatures, so you can plant year-round!

In tropical and subtropical climates, the main challenge isn’t frost — it’s heat and humidity. Learn more about gardening in tropical climates.

40.35°S, 9.88°W © OpenStreetMap

USDA Hardiness Zone

Zone 10b

Avg. annual minimum: 2 to 4°C

Learn more

Köppen Climate

Cfb Oceanic (Marine West Coast)

Mild year-round with cool summers and wet winters. Excellent for cool-season crops like brassicas, peas, and root vegetables. Extended harvest seasons but summer heat-loving crops may struggle.

Köppen climate map

Temperature

5° 10° 15° 20°

14°

Jan

14°

Feb

14°

Mar

13°

Apr

12°

May

11°

Jun

10°

Jul

9°

Aug

9°

Sep

10°

Oct

11°

Nov

13°

Dec

Avg High Avg Temp Avg Low

Temperature table

Average monthly temperatures (°C)
Month	Avg High	Avg Temp	Avg Low
January	15°	14°	13°
February	15°	14°	13°
March	15°	14°	13°
April	14°	13°	12°
May	13°	12°	11°
June	12°	11°	10°
July	11°	10°	9°
August	11°	9°	8°
September	10°	9°	8°
October	11°	10°	9°
November	12°	11°	10°
December	14°	13°	12°

Precipitation

0 mm 50 mm 100 mm 150 mm

91 mm

Jan

79 mm

Feb

99 mm

Mar

117 mm

Apr

140 mm

May

135 mm

Jun

124 mm

Jul

124 mm

Aug

104 mm

Sep

107 mm

Oct

91 mm

Nov

84 mm

Dec

Precipitation table

Average monthly precipitation (millimeters)
Month	Precipitation
January	91
February	79
March	99
April	117
May	140
June	135
July	124
August	124
September	104
October	107
November	91
December	84

Sunrise / Sunset

Jan: 4:43 AM – 7:17 PM · 14h 34m

Feb: 5:14 AM – 6:46 PM · 13h 33m

Mar: 5:50 AM – 6:10 PM · 12h 19m

Apr: 6:32 AM – 5:28 PM · 10h 55m

May: 7:07 AM – 4:53 PM · 9h 46m

Jun: 7:26 AM – 4:34 PM · 9h 08m

Jul: 7:18 AM – 4:42 PM · 9h 23m

Aug: 6:48 AM – 5:12 PM · 10h 24m

Sep: 6:08 AM – 5:52 PM · 11h 45m

Oct: 5:27 AM – 6:33 PM · 13h 06m

Nov: 4:51 AM – 7:09 PM · 14h 17m

Dec: 4:34 AM – 7:26 PM · 14h 52m

Daylight Longest: 14h 53m · Shortest: 9h 07m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month	Sunrise	Sunset	Daylight
January	4:43 AM	7:17 PM	14h 34m
February	5:14 AM	6:46 PM	13h 33m
March	5:50 AM	6:10 PM	12h 19m
April	6:32 AM	5:28 PM	10h 55m
May	7:07 AM	4:53 PM	9h 46m
June	7:26 AM	4:34 PM	9h 08m
July	7:18 AM	4:42 PM	9h 23m
August	6:48 AM	5:12 PM	10h 24m
September	6:08 AM	5:52 PM	11h 45m
October	5:27 AM	6:33 PM	13h 06m
November	4:51 AM	7:09 PM	14h 17m
December	4:34 AM	7:26 PM	14h 52m

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