Hamilton Island weather by month & the best time to visit
🇦🇺 Australia · beach resort · tropical — wet & dry seasons climate
The best time to visit Hamilton Island is September — its sunniest month (Sunshine Score 95/100), with August and July close behind. Hamilton Island averages about 3,060 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 14 mm of rain in September.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 3,060
- Sunniest month
- September
- Peak score
- 95/100
- Rain / year
- 985 mm
- Midday UV at peak
- 12 (extreme)
- Sea at warmest
- 30°C / 86°F
- Population
- 84k
- Elevation
- Sea level
When is the best time to visit Hamilton Island?
For sunshine, the best time to visit Hamilton Island is September, then August and July. The dullest month is January (70/100, 219 mm of rain). The full month-by-month picture is in the table below.
How sunny is Hamilton Island?
Hamilton Island is one of the sunniest places on Earth: about 3,060 hours of sunshine a year. September (95/100) is noticeably better than January (70). It ranks #63 of 118 destinations in Australia for annual sunshine, below the national median of 3,071 hours. Rain is strongly seasonal here: roughly 61% of the year's 985 mm falls in the three months around February.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 70 | 30° / 86°F | 25° / 77°F | 219 mm | 12 | 30° / 86°F |
| February | 70 | 29° / 84°F | 25° / 77°F | 228 mm | 12 | 29° / 84°F |
| March | 70 | 29° / 84°F | 24° / 75°F | 155 mm | 11 | 28° / 82°F |
| April | 85 | 27° / 81°F | 23° / 73°F | 66 mm | 9 | 27° / 81°F |
| May | 91 | 26° / 79°F | 20° / 68°F | 36 mm | 7 | 24° / 75°F |
| June | 91 | 24° / 75°F | 18° / 64°F | 35 mm | 5 | 22° / 72°F |
| July | 93 | 23° / 73°F | 17° / 63°F | 24 mm | 6 | 22° / 72°F |
| August | 94 | 24° / 75°F | 17° / 63°F | 16 mm | 7 | 21° / 70°F |
| September | 95 | 26° / 79°F | 19° / 66°F | 14 mm | 9 | 23° / 73°F |
| October | 92 | 28° / 82°F | 21° / 70°F | 27 mm | 11 | 25° / 77°F |
| November | 88 | 29° / 84°F | 23° / 73°F | 50 mm | 12 | 27° / 81°F |
| December | 76 | 30° / 86°F | 24° / 75°F | 115 mm | 12 | 28° / 82°F |
Sea temperature in Hamilton Island by month
The sea off Hamilton Island is warmest in January at around 30°C / 86°F, and coolest in August at 21°C / 70°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Hamilton Island on the interactive sunshine globe →
Nearby places for sunshine
- Proserpine Australia · 44 km · best in Sep · 3,060 h sun/yr
- Mackay Australia · 93 km · best in Aug · 3,009 h sun/yr
- Townsville Australia · 260 km · best in Sep · 3,126 h sun/yr
- Rockhampton Australia · 371 km · best in Aug · 3,135 h sun/yr
- Cairns Australia · 513 km · best in Aug · 2,763 h sun/yr
- Sunshine Coast Australia · 811 km · best in Jul · 2,956 h sun/yr
Nearest destinations
- Moranbah Australia · 210 km · 3,225 h sun/yr · best in Aug
- Emerald Australia · 366 km · 3,339 h sun/yr · best in May
Head-to-head
How Hamilton Island compares month by month: Hamilton Island vs Townsville · Hamilton Island vs Cairns · Hamilton Island vs Mackay · Hamilton Island vs Rockhampton · all comparisons
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