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Home › Climate › Neptune Island Climate

Neptune Island Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
 22.0 22.2 21.1 19.5 17.7 16.0 15.3 15.3 16.2 17.5 19.1 20.5 18.5
Mean Min (°C)
 16.1 16.6 15.9 15.0 13.7 12.2 11.3 11.1 11.5 12.3 13.5 14.8 13.7
Mean Rain (mm)
 13.6 13.5 19.8 32.4 53.5 68.8 75.3 64.6 48.7 28.1 18.3 17.4 451.2
Median Rain (mm)
 7.6 5.4 13.0 24.8 47.4 60.1 67.2 65.6 42.8 19.7 15.4 14.6 424.6
Mean Rain Days
 4.7 4.2 6.7 10.0 15.2 17.2 18.2 18.0 14.0 10.0 7.1 6.8 120.7

Neptune Island Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
 35.0 36.8 34.6 29.4 24.0 21.7 22.5 25.9 27.6 28.8 33.7 34.3 36.8
Low Max (°C)
 15.0 16.6 15.5 14.4 12.5 10.3 10.4 10.6 11.7 12.4 13.2 15.0 10.3
High Min (°C)
 23.3 23.2 21.7 20.5 18.0 17.8 15.5 15.7 17.0 18.0 20.7 21.5 23.3
Low Min (°C)
 9.4 8.9 9.0 6.1 6.7 6.4 5.2 4.4 4.5 6.1 7.2 8.2 4.4
High Rain (mm)
 129.5 48.4 60.8 41.0 32.8 44.8 43.8 30.2 65.4 36.0 63.8 22.8 129.5

Neptune Island Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
 23.9 24.7 23.4 21.1 19.0 17.2 16.5 16.8 17.6 19.0 22.5 22.3 19.4
Low Mn. Max (°C)
 19.6 19.4 19.6 17.7 16.6 14.8 14.2 13.5 14.3 15.9 16.8 18.1 17.6
High Mn. Min (°C)
 17.9 18.6 17.2 16.6 14.6 13.8 12.5 12.7 12.8 13.4 16.0 16.3 14.4
Low Mn. Min (°C)
 14.2 14.8 13.9 13.8 12.4 11.3 10.2 9.8 10.0 10.7 12.4 13.1 13.1
High Rain (mm)
 144.2 74.1 87.8 151.4 104.7 154.8 146.4 131.2 143.4 84.6 74.0 68.2 642.9
Low Rain (mm)
 0.0 0.0 0.0 1.4 14.2 19.3 28.4 18.8 10.4 0.0 0.6 1.0 294.8

Neptune Island Annual Temperatures & Rainfall

Neptune Island annual climate

Neptune 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
 0.7 0.7 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.2 1.9
≤ 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

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
 24.8 25.0 23.6 21.5 19.5 17.5 16.9 17.0 18.0 20.0 21.8 23.3 22.0
Low Max
 19.4 19.5 18.9 17.3 15.9 14.5 13.7 13.5 14.1 15.0 16.7 17.8 15.0
High Min
 18.0 18.4 17.8 16.7 15.5 13.9 12.9 12.8 13.3 14.0 15.4 16.7 16.5
Low Min
 14.4 15.0 14.2 13.3 12.0 10.6 9.8 9.5 9.8 10.6 11.7 13.0 11.0

Neptune Island Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
 49 51 50 49 48 48 47 47 47 46 46 47 47.8
Earliest Entry
 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962
Latest Entry
 2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Maxima
 49 50 50 49 50 49 49 48 49 48 49 48 49.0
Earliest Entry
 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962 1962
Latest Entry
 2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Rainfall
 46 47 46 45 46 45 44 46 45 45 46 46 45.6
Earliest Entry
 1958 1958 1958 1958 1958 1958 1958 1958 1958 1958 1957 1957 1957
Latest Entry
 2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012

Station Details

NEPTUNE ISLAND
Lower Eyre Peninsula, South Australia
35.3365°S 136.1174°E 32m AMSL
Commenced 1957

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