Hamilton Island Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
29.9 29.7 28.9 27.0 24.3 22.3 21.5 22.9 25.3 27.4 28.7 29.9 26.4
Mean Min (°C)
24.9 24.9 24.4 22.9 20.6 18.8 18.0 18.5 20.2 22.1 23.4 24.6 21.9
Mean Rain (mm)
293.4 268.8 251.3 163.6 95.3 58.1 54.4 23.6 26.4 26.5 75.0 141.9 1422.8
Median Rain (mm)
289.4 286.4 149.3 143.2 65.4 38.0 25.9 9.9 9.1 10.0 24.8 55.5 1137.1
Mean Rain Days
17.5 17.5 18.6 16.8 14.9 13.0 11.0 7.5 6.0 6.1 8.5 10.7 145.7

Hamilton Island Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
34.5 35.6 43.5 31.3 29.0 28.4 26.8 27.9 30.0 31.9 34.2 35.6 43.5
Low Max (°C)
25.2 25.9 23.9 21.8 17.2 16.8 15.5 17.3 20.7 23.6 23.8 24.4 15.5
High Min (°C)
28.5 28.2 28.7 26.5 24.4 22.6 22.0 21.8 23.8 25.8 27.2 27.5 28.7
Low Min (°C)
21.0 20.5 19.1 18.4 13.9 13.3 12.1 13.6 15.1 18.0 19.4 19.2 12.1
High Rain (mm)
266.0 233.2 149.2 91.2 102.0 69.8 85.4 45.0 90.6 56.4 233.2 159.8 266.0

Hamilton Island Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
30.9 31.0 30.4 28.7 26.5 24.0 23.3 24.4 26.5 29.1 29.8 31.7 27.2
Low Mn. Max (°C)
28.6 27.9 26.5 25.6 22.8 20.9 19.5 21.1 23.7 25.7 26.5 28.8 25.6
High Mn. Min (°C)
26.5 25.9 26.1 24.4 23.0 20.4 19.5 19.8 21.7 23.3 24.4 25.8 22.6
Low Mn. Min (°C)
24.2 23.6 22.8 21.5 19.2 17.1 16.2 17.1 19.0 20.6 22.0 24.1 21.1
High Rain (mm)
858.2 762.4 842.6 340.0 230.2 175.2 215.4 92.8 175.0 105.0 686.8 517.2 2529.0
Low Rain (mm)
32.0 22.9 15.8 24.8 13.0 7.2 0.2 0.4 0.2 0.2 3.2 8.6 415.2

Hamilton Island Annual Temperatures & Rainfall

Hamilton Island annual climate

Hamilton 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 0.1
≥ 30°C
14.5 12.1 6.2 1.2 0.0 0.0 0.0 0.0 0.0 2.1 5.5 15.1 54.8
≤ 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

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
31.3 30.8 29.8 28.3 26.0 24.1 23.2 24.9 27.3 29.2 30.3 31.6 30.0
Low Max
28.3 27.7 26.8 25.4 22.9 20.6 19.8 21.0 23.4 25.8 27.3 28.9 22.2
High Min
26.0 26.2 25.4 24.1 22.1 20.4 19.3 19.8 21.6 23.4 24.4 26.0 25.0
Low Min
23.2 23.4 22.6 21.2 19.1 17.5 16.4 16.9 18.5 20.7 22.0 23.2 18.3

Hamilton Island Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
22 21 19 20 21 21 22 21 22 21 22 21 21.0
Earliest Entry
2003 2003 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002
Latest Entry
2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Maxima
22 21 20 20 21 21 22 22 22 21 21 21 21.0
Earliest Entry
2003 2003 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002
Latest Entry
2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Rainfall
22 21 20 21 21 21 22 22 22 21 22 21 21.0
Earliest Entry
2003 2003 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002
Latest Entry
2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2023 2024

Station Details

HAMILTON ISLAND AIRPORT
Central Coast, Queensland
20.3658°S 148.9536°E 59m AMSL
Commenced 2002

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Winter is Coming: Chilly day for Sydney, rain pelts eastern seaboard

17:22 AEST Just as we forecast yesterday, a coastal trough has deepened along the NSW and southeast Qld coasts as a low in the Coral Sea continues to inch closer to Qld.  The trough has brought some interesting weather to NSW in the past 36 hours or so, particularly along the coastal fringe, giving those New South Welshmen a “Stark” Game of Thrones reminder: winter is coming.

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