Swan Island Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
20.9 21.2 20.5 18.3 15.9 14.0 13.2 13.5 14.7 16.0 17.7 19.4 17.2
Mean Min (°C)
14.9 15.4 14.5 12.8 10.8 9.3 8.4 8.4 9.2 10.2 11.9 13.4 11.7
Mean Rain (mm)
47.9 38.3 62.1 49.5 60.6 61.2 66.7 62.4 59.8 49.6 67.9 50.2 677.0
Median Rain (mm)
27.0 41.2 28.8 38.1 33.6 61.8 56.5 51.8 47.2 50.8 57.3 25.6 619.9
Mean Rain Days
7.6 8.1 9.4 12.9 14.9 17.3 18.3 17.4 14.0 11.9 11.4 9.4 137.7

Swan Island Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
31.9 30.2 29.7 24.5 21.6 18.0 17.6 18.1 21.4 23.0 26.8 28.4 31.9
Low Max (°C)
16.2 14.9 14.2 11.5 10.4 10.1 9.3 9.4 10.5 11.2 12.5 13.1 9.3
High Min (°C)
19.6 20.1 20.3 18.8 16.5 15.2 13.4 12.8 13.7 14.6 16.4 18.8 20.3
Low Min (°C)
8.6 8.7 6.8 6.2 4.3 2.8 3.1 2.2 3.1 3.8 4.6 6.7 2.2
High Rain (mm)
160.8 54.2 121.2 53.6 51.2 40.2 56.2 41.0 28.0 34.8 80.4 62.4 160.8

Swan Island Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
21.9 22.7 22.1 19.6 17.1 15.2 14.0 14.1 15.7 17.4 18.9 21.1 17.7
Low Mn. Max (°C)
19.3 19.8 19.2 16.4 14.4 13.0 12.5 12.7 13.3 14.5 16.7 18.2 16.5
High Mn. Min (°C)
16.3 16.8 16.0 13.9 12.4 10.3 9.4 9.9 10.5 11.2 13.1 14.7 12.2
Low Mn. Min (°C)
13.5 14.2 13.1 10.4 9.0 7.6 7.4 7.1 7.8 8.9 10.7 11.9 10.8
High Rain (mm)
182.0 130.4 183.4 100.4 176.8 135.6 109.2 147.6 100.0 90.6 145.2 118.2 966.8
Low Rain (mm)
6.2 5.0 16.6 16.4 13.0 16.2 14.0 9.2 13.4 5.4 21.0 5.4 306.8

Swan Island Annual Temperatures & Rainfall

Swan Island annual climate

Swan Island Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
≥ 35°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
≥ 30°C
0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2
≤ 2°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Swan Island 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
23.1 22.9 22.2 20.1 17.6 15.7 14.3 14.5 15.8 17.7 19.5 21.2 20.7
Low Max
18.5 18.8 18.3 16.2 13.9 12.5 11.9 12.3 13.0 14.1 15.4 17.3 13.3
High Min
16.8 17.4 16.5 15.1 13.7 12.0 10.7 10.7 11.0 12.3 13.8 15.4 15.2
Low Min
12.3 13.0 11.7 10.2 8.1 6.6 6.1 5.8 6.7 7.7 9.7 10.7 7.8

Swan Island Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
16 16 16 16 16 15 15 15 15 15 16 16 15.5
Earliest Entry
2002 2002 2002 2002 2002 2002 2002 2002 2002 2001 2001 2001 2001
Latest Entry
2017 2017 2017 2017 2017 2016 2016 2016 2016 2016 2016 2016 2017
Years of Maxima
16 16 16 16 16 15 15 15 15 15 16 16 15.5
Earliest Entry
2002 2002 2002 2002 2002 2002 2002 2002 2002 2001 2001 2001 2001
Latest Entry
2017 2017 2017 2017 2017 2016 2016 2016 2016 2016 2016 2016 2017
Years of Rainfall
14 15 16 16 16 15 15 15 14 14 15 15 14.8
Earliest Entry
2002 2002 2002 2002 2002 2002 2002 2002 2002 2001 2001 2001 2001
Latest Entry
2017 2017 2017 2017 2017 2016 2016 2016 2016 2016 2016 2016 2017

Station Details

SWAN ISLAND
Northeast, Tasmania
40.7292°S 148.1250°E 15m AMSL
Commenced 2001

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