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°N, -9.88°W © OpenStreetMap

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 10b

Avg. annual minimum: 2 to 4°C

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

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°
High: 15°C
Avg: 14°C
Low: 13°C
Jan
14°
High: 15°C
Avg: 14°C
Low: 13°C
Feb
14°
High: 15°C
Avg: 14°C
Low: 13°C
Mar
13°
High: 14°C
Avg: 13°C
Low: 12°C
Apr
12°
High: 13°C
Avg: 12°C
Low: 11°C
May
11°
High: 12°C
Avg: 11°C
Low: 10°C
Jun
10°
High: 11°C
Avg: 10°C
Low: 9°C
Jul
9°
High: 11°C
Avg: 9°C
Low: 8°C
Aug
9°
High: 10°C
Avg: 9°C
Low: 8°C
Sep
10°
High: 11°C
Avg: 10°C
Low: 9°C
Oct
11°
High: 12°C
Avg: 11°C
Low: 10°C
Nov
13°
High: 14°C
Avg: 13°C
Low: 12°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 50 mm 100 mm 150 mm
91 mm
91.4 mm
Jan
79 mm
78.7 mm
Feb
99 mm
99.1 mm
Mar
117 mm
116.8 mm
Apr
140 mm
139.7 mm
May
135 mm
134.6 mm
Jun
124 mm
124.5 mm
Jul
124 mm
124.5 mm
Aug
104 mm
104.1 mm
Sep
107 mm
106.7 mm
Oct
91 mm
91.4 mm
Nov
84 mm
83.8 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec14.5h13.5h12.5h11h10h9h9.5h10.5h11.5h13h14.5h15h
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

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