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Cape Otway Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
21.3 | 21.4 | 20.2 | 17.9 | 15.6 | 13.6 | 13.0 | 13.8 | 15.1 | 16.8 | 18.3 | 19.8 | 17.2 |
| Mean Min (°C) |
13.4 | 13.9 | 13.3 | 11.7 | 10.1 | 8.5 | 7.6 | 7.9 | 8.6 | 9.6 | 10.8 | 12.1 | 10.6 |
| Mean Rain (mm) |
44.7 | 40.0 | 56.4 | 70.4 | 90.1 | 96.0 | 104.3 | 103.9 | 88.3 | 79.6 | 62.6 | 52.4 | 890.3 |
| Median Rain (mm) |
37.4 | 31.4 | 49.0 | 68.2 | 86.1 | 95.5 | 97.2 | 96.0 | 84.8 | 72.7 | 57.7 | 46.1 | 867.5 |
| Mean Rain Days |
9.8 | 9.0 | 12.5 | 15.4 | 18.5 | 18.9 | 20.4 | 20.6 | 18.7 | 16.9 | 14.0 | 12.4 | 187.4 |
Cape Otway Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
43.3 | 42.0 | 40.6 | 33.3 | 27.8 | 24.4 | 21.8 | 25.0 | 31.0 | 34.2 | 39.4 | 43.4 | 43.4 |
| Low Max (°C) |
12.8 | 12.2 | 10.6 | 10.0 | 8.3 | 7.2 | 6.7 | 6.7 | 7.8 | 8.9 | 10.5 | 11.1 | 6.7 |
| High Min (°C) |
29.4 | 27.9 | 30.3 | 24.3 | 19.7 | 16.7 | 13.4 | 16.5 | 22.5 | 22.2 | 25.6 | 30.6 | 30.6 |
| Low Min (°C) |
0.6 | -1.1 | -1.1 | 1.7 | 1.7 | 1.7 | 0.0 | 1.1 | -1.1 | -6.7 | 1.4 | 3.3 | -6.7 |
| High Rain (mm) |
91.7 | 81.4 | 93.0 | 78.6 | 47.2 | 61.0 | 62.6 | 48.8 | 48.3 | 68.3 | 90.2 | 58.8 | 93.0 |
Cape Otway Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
27.5 | 25.8 | 24.4 | 22.2 | 19.3 | 17.9 | 16.7 | 19.6 | 19.1 | 21.2 | 23.3 | 25.0 | 20.0 |
| Low Mn. Max (°C) |
17.9 | 17.2 | 16.6 | 15.2 | 13.5 | 11.8 | 10.8 | 11.8 | 12.4 | 13.3 | 15.7 | 16.0 | 15.4 |
| High Mn. Min (°C) |
16.2 | 18.0 | 16.0 | 13.8 | 12.4 | 11.1 | 9.6 | 9.9 | 11.4 | 12.3 | 14.0 | 15.6 | 12.2 |
| Low Mn. Min (°C) |
6.9 | 4.8 | 7.0 | 5.2 | 4.8 | 4.0 | 2.9 | 3.5 | 4.0 | 4.8 | 3.7 | 6.0 | 5.9 |
| High Rain (mm) |
135.2 | 154.6 | 188.8 | 189.7 | 224.2 | 211.1 | 213.9 | 218.2 | 188.5 | 225.1 | 146.5 | 153.7 | 1291.6 |
| Low Rain (mm) |
0.0 | 0.0 | 8.4 | 0.6 | 14.9 | 25.3 | 35.7 | 29.2 | 22.9 | 6.5 | 9.3 | 2.6 | 634.9 |
Cape Otway Annual Temperatures & Rainfall
Cape Otway Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40°C |
0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 |
| ≥ 35°C |
1.0 | 0.7 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.4 | 2.6 |
| ≥ 30°C |
2.8 | 2.2 | 1.6 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 1.0 | 1.7 | 9.7 |
| ≤ 2°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.4 |
| ≤ 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 | 0.1 |
Cape Otway 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
26.7 | 26.7 | 25.0 | 22.2 | 18.5 | 15.6 | 15.0 | 16.7 | 18.9 | 21.7 | 23.3 | 25.0 | 21.7 |
| Low Max |
17.1 | 17.2 | 16.2 | 14.4 | 13.0 | 11.7 | 11.1 | 11.4 | 12.2 | 13.0 | 14.4 | 15.6 | 12.8 |
| High Min |
15.6 | 16.4 | 15.6 | 13.9 | 12.2 | 10.6 | 9.4 | 10.0 | 10.6 | 11.7 | 12.8 | 14.3 | 13.9 |
| Low Min |
11.0 | 11.5 | 10.6 | 9.4 | 7.8 | 6.1 | 5.6 | 5.6 | 6.1 | 7.2 | 8.3 | 9.6 | 7.2 |
Cape Otway Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
153 | 156 | 155 | 160 | 160 | 159 | 158 | 159 | 157 | 157 | 155 | 153 | 154.0 |
| Earliest Entry |
1865 | 1865 | 1865 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2024 |
| Years of Maxima |
159 | 159 | 158 | 159 | 159 | 161 | 161 | 160 | 159 | 158 | 159 | 159 | 159.0 |
| Earliest Entry |
1865 | 1865 | 1865 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 | 1864 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2024 |
| Years of Rainfall |
154 | 155 | 154 | 154 | 154 | 154 | 154 | 154 | 154 | 153 | 153 | 152 | 153.0 |
| Earliest Entry |
1868 | 1868 | 1868 | 1868 | 1868 | 1868 | 1868 | 1868 | 1868 | 1868 | 1868 | 1868 | 1868 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2024 |
Station Details
CAPE OTWAY LIGHTHOUSE
South West, Victoria
South West, Victoria
38.8557°S 143.5130°E
80m AMSL
Commenced 1861
Commenced 1861
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Nature?s air conditioner: how the seabreeze will help Sydney cope during the heatwave
14:37 AEDT As heatwave conditions take hold of southeastern Australia this weekend, the cooling seabreeze will be crucial in easing daytime heat, but how does it form? During periods with weak synoptic forcing, with a broad high pressure system moving slowly over the Tasman Sea, the seabreeze circulation dominates, as we can see below.
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