Garden Island Climate

Garden Island Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
27.3 28.2 27.0 23.9 21.4 19.1 17.9 18.1 18.9 21.0 23.8 25.6 22.7
Mean Min (°C)
19.0 19.4 18.3 16.1 13.9 12.1 11.2 11.2 12.0 13.7 15.7 17.3 15.0
Mean Rain (mm)
14.1 17.0 16.8 36.2 74.5 110.7 116.4 95.8 62.7 27.7 22.1 9.9 598.0
Median Rain (mm)
0.9 2.1 7.9 34.7 57.7 110.7 109.2 92.5 47.3 28.4 19.2 4.8 538.6
Mean Rain Days
2.6 2.2 4.5 8.4 11.5 15.5 19.1 17.4 15.2 9.3 6.2 3.8 114.6

Garden Island Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
42.0 41.3 41.8 37.1 31.0 24.6 23.0 25.9 32.9 36.3 38.1 43.4 43.4
Low Max (°C)
19.9 18.3 17.4 16.6 14.7 13.5 13.4 13.1 14.0 15.0 16.0 18.0 13.1
High Min (°C)
25.9 25.5 26.2 21.8 20.4 17.7 17.0 17.2 18.4 22.0 23.6 25.0 26.2
Low Min (°C)
12.7 13.8 10.2 7.5 7.6 5.7 4.3 3.5 5.7 7.0 8.5 11.0 3.5
High Rain (mm)
107.6 109.0 37.0 53.6 99.8 44.8 52.2 42.0 41.2 22.0 46.0 38.6 109.0

Garden Island Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
30.5 31.8 28.8 26.0 23.0 20.5 18.9 19.6 20.2 22.9 27.1 28.0 23.9
Low Mn. Max (°C)
24.6 26.2 24.5 21.9 19.9 17.8 16.8 16.8 16.7 18.3 21.3 21.5 21.5
High Mn. Min (°C)
20.4 21.5 20.0 18.3 16.3 13.6 12.7 13.1 13.7 15.4 17.1 19.7 15.9
Low Mn. Min (°C)
17.5 17.9 17.1 14.3 12.1 10.2 9.9 9.1 9.8 12.4 14.0 15.5 14.4
High Rain (mm)
108.2 126.8 56.2 134.8 184.4 263.6 183.2 132.6 151.6 59.8 87.0 52.0 848.6
Low Rain (mm)
0.0 0.0 0.0 0.0 22.0 20.4 40.6 19.4 21.4 9.0 1.4 0.2 407.6

Garden Island Annual Temperatures & Rainfall

GARDEN ISLAND HSF

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Garden Island Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40.0°C
0.3 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.6
≥ 35.0°C
2.4 3.2 1.6 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.8 1.8 10.0
≥ 30.0°C
8.4 9.5 7.6 2.0 0.1 0.0 0.0 0.0 0.1 0.9 3.1 5.8 37.8
≤ 2.0°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
≤ 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

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
31.1 34.6 32.5 27.0 24.4 21.1 19.5 20.0 20.7 24.3 27.2 31.0 27.9
Low Max
22.6 23.0 22.4 20.2 18.3 16.9 15.9 15.7 16.6 17.7 19.7 20.9 17.6
High Min
21.0 21.9 21.0 18.3 17.0 14.7 13.7 13.9 14.5 16.0 18.0 19.6 19.0
Low Min
15.9 16.0 15.0 13.2 11.2 9.3 8.2 8.2 9.0 10.5 12.8 14.0 10.4

Garden Island Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
20 20 20 20 20 20 19 19 19 18 19 20 19.0
Earliest Entry
2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2001 2001 2001
Latest Entry
2021 2021 2021 2021 2021 2021 2021 2020 2020 2020 2020 2020 2021
Years of Maxima
20 20 20 20 20 20 19 19 19 18 19 20 19.0
Earliest Entry
2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2001 2001 2001
Latest Entry
2021 2021 2021 2021 2021 2021 2021 2020 2020 2020 2020 2020 2021
Years of Rainfall
20 20 20 20 19 19 18 18 18 18 19 20 18.0
Earliest Entry
2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2001 2001 2001
Latest Entry
2021 2021 2021 2021 2021 2021 2021 2019 2019 2020 2020 2020 2021

Station Details

GARDEN ISLAND HSF
Lower West, Western Australia
32.2433°S 115.6839°E 6m AMSL
Commenced 2001
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