Frost Dates for Swan Island, TAS

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.

-40.73°N, 148.13°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: 35 to 40°F (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° 25°
18°
High: 21°C
Avg: 18°C
Low: 15°C
Jan
18°
High: 21°C
Avg: 18°C
Low: 15°C
Feb
18°
High: 21°C
Avg: 18°C
Low: 15°C
Mar
16°
High: 18°C
Avg: 16°C
Low: 13°C
Apr
13°
High: 16°C
Avg: 13°C
Low: 11°C
May
12°
High: 14°C
Avg: 12°C
Low: 9°C
Jun
11°
High: 13°C
Avg: 11°C
Low: 8°C
Jul
11°
High: 13°C
Avg: 11°C
Low: 8°C
Aug
12°
High: 15°C
Avg: 12°C
Low: 9°C
Sep
13°
High: 16°C
Avg: 13°C
Low: 10°C
Oct
15°
High: 18°C
Avg: 15°C
Low: 12°C
Nov
17°
High: 20°C
Avg: 17°C
Low: 13°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 20 mm 40 mm 60 mm
30 mm
30.5 mm
Jan
33 mm
33.0 mm
Feb
51 mm
50.8 mm
Mar
43 mm
43.2 mm
Apr
61 mm
61.0 mm
May
58 mm
58.4 mm
Jun
58 mm
58.4 mm
Jul
53 mm
53.3 mm
Aug
51 mm
50.8 mm
Sep
46 mm
45.7 mm
Oct
61 mm
61.0 mm
Nov
51 mm
50.8 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec14.5h13.5h12.5h11h9.5h9h9.5h10.5h11.5h13h14.5h15h
Jan: 4:42 AM – 7:18 PM · 14h 37m
Feb: 5:13 AM – 6:47 PM · 13h 34m
Mar: 5:50 AM – 6:10 PM · 12h 19m
Apr: 6:33 AM – 5:27 PM · 10h 54m
May: 7:08 AM – 4:52 PM · 9h 44m
Jun: 7:27 AM – 4:33 PM · 9h 06m
Jul: 7:19 AM – 4:41 PM · 9h 21m
Aug: 6:49 AM – 5:11 PM · 10h 22m
Sep: 6:08 AM – 5:52 PM · 11h 45m
Oct: 5:27 AM – 6:33 PM · 13h 07m
Nov: 4:50 AM – 7:10 PM · 14h 19m
Dec: 4:33 AM – 7:27 PM · 14h 54m
Daylight Longest: 14h 55m · Shortest: 9h 05m

Nearby Stations

Eddystone Point, TAS St Helens Aerodrome, TAS August 15 - June 17 Bridport (Sea View Villas), TAS Flinders Island Airport, TAS September 9 - June 1 Scottsdale (West Minstone Road, TAS September 25 - May 24 Fingal (Legge Street), TAS November 3 - April 8

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