Hamilton Island weather is sub tropical which makes it perfect for holidays in the sun for the majority of the year. Hamilton Island lies on the same tropical latitude as Honolulu in the northern hemisphere and Mauritius in the south. It has a year round warm tropical climate with an average temperature of 27.4 degrees celsius. Its maximum summer temperatures (December, January and February) are around 30 degrees celsius, with maximum winter temperatures (June, July and August) around 23 degrees. The high average temperatures makes Hamilton Island weather suitable year round for swimming, water sports and exploring the Great Barrier Reef.
Hamilton's tropical climate means the days are warm and the atmosphere is very relaxed. A light jacket or sweater may be required for evenings during the cooler months. Beachwear and casual attire is suitable during the day.
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Av Min°C | 25 | 25 | 24 | 23 | 21 | 18 | 18 | 18 | 20 | 22 | 23 | 24 |
| Av Max°C | 31 | 30 | 29 | 28 | 26 | 24 | 23 | 25 | 26 | 28 | 31 | 31 |
| Av Max°F | 88 | 86 | 84 | 82 | 79 | 75 | 73 | 77 | 79 | 82 | 88 | 88 |
