Cockatoo Island
Sydney, Australia UNESCO World Heritage Site

Cockatoo Island is a historical cultural heritage site and part of the Australian Convict Sites and the Sydney Harbour islands. It is a UNESCO World Heritage Site and is also listed on the Australian National Heritage List. It is the 55th most looked-up sight in Australia on English Wikipedia. It is one of 62 Australian sights listed on this website.
Planning a visit
The climate varies throughout the year. The warmest months are January and February, when daily highs reach 24 °C, but these months also see the most rain, with February receiving about 125 mm. The driest period occurs between August and October, when monthly rainfall stays below 80 mm, specifically reaching a low of about 59 mm in September. From May to August, daily highs range from 16 °C to 19 °C, and monthly rainfall typically stays between 67 mm and 105 mm.
The island is 11 km from Sydney Kingsford Smith International Airport and 247 km from Canberra. It is located near several Sydney landmarks, such as Darling Harbour, Circular Quay, the Sydney Opera House, the Queen Victoria Building, and Sydney Tower, all of which are located within about 4 km of the island.
Weather by month
The warmest month is January, with an average high of 24 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 24 | 24 | 23 | 21 | 19 | 16 | 16 | 17 | 19 | 20 | 22 | 23 |
| Average low, °C | 20 | 20 | 19 | 16 | 14 | 11 | 10 | 11 | 13 | 15 | 17 | 19 |
| Rainfall, mm | 85 | 125 | 97 | 112 | 105 | 96 | 73 | 67 | 59 | 78 | 90 | 77 |
| Rainy days | 14 | 13 | 15 | 9 | 7 | 8 | 6 | 6 | 7 | 10 | 10 | 10 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.