Annual average weather for Hamilton Island, Whitsunday Islands, Australia

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Annual Average Weather for Hamilton Island, Whitsunday Islands, Australia

The annual average maximum daily temperature is 25.7°C (78.3°F) which is very warm and perfect for sunbathing on clear days. The annual average water temperature is typically 25.2°C (77.4°F) which is warm and pleasant for relaxing and swimming for long periods. Annually there are on average 9.4 days of rain per month and 5.1 hours of sun per day.

When is the best time to visit Hamilton Island?

The best months to visit Hamilton Island are August, September, October, November, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The weather is perfect for sunbathing in the months from October to April when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between November and May when the sea temperature is above the average 25°C (77°F) which is warm and pleasant for relaxing and swimming for long periods.

Can you sunbathe in Hamilton Island year round?

No, you can't sunbathe in Hamilton Island all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.

The weather is best for sunbathing in the months from October to April when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in Hamilton Island year round?

Yes, you can swim in Hamilton Island all year round.

The warmest sea water temperatures in Hamilton Island are found in February when they peak at 28°C (83°F) and lowest in August when they dip to 22°C (72°F).

The sea temperature is above average for swimming between November and May when the sea temperature is above 25°C (77°F) which is warm and pleasant for relaxing and swimming for long periods.

For perfect swimming and lounging all day, try the months from December to April when the sea temperature is above 26°C (79°F)

More info about the annual sea temperatures

When is the hottest month in Hamilton Island?

The hottest month in Hamilton Island is December when the average maximum temperature is very warm and perfect for sunbathing on clear days 29°C (85°F), average temperature is 27°C (80°F) and average minimum temperature is 24°C (76°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Hamilton Island?

The coolest month in Hamilton Island is July when the average maximum temperature is 21°C (70°F), average temperature is 19°C (67°F) and average minimum temperature is 18°C (64°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Hamilton Island?

The sunniest days in Hamilton Island are in January which has the most hours of sunshine per day. In January the sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.0 hours of sunshine per day.

More info about the annual sunshine.

When is the least sunny month in Hamilton Island?

May has the least sunshine. In May the sunshine percentage is 35% making it very cloudy and overcast with some periods of sunshine. There are 3.9 hours of sunshine per day.

More info about the annual sunshine.

When is the driest month in Hamilton Island?

The driest month in Hamilton Island is September with 2cm (0.8inches) of rain and October has the fewest days of rain with 4.1 days with some rain, a very dry time to visit the beach.

More info about the annual rainfall

When is the wettest month in Hamilton Island?

The wettest month in Hamilton Island is March with 31.2cm (12.3inches) of rain and February has the most days of rain with 16 days with some rain, a wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in Hamilton Island?

The coldest sea water temperatures in Hamilton Island are found in August when they dip to 22°C (72°F) which is warm and pleasant for relaxing and swimming for long periods.

More info about the annual sea temperatures.

When is the sea the warmest in Hamilton Island?

The warmest sea water temperatures in Hamilton Island are found in February when they peak at 28°C (83°F) which is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures.

When is the most humid month in Hamilton Island?

The most humid month in Hamilton Island is February with a dew point (an indicator of humidity) of 24°C (76°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.

More info about the annual humidity.

When is the least humid month in Hamilton Island?

The least humid month in Hamilton Island is July with a dew point of 17°C (62°F) which is OK for most but slightly uncomfortable for some.

More info about the annual humidity.

When is the windiest month in Hamilton Island?

The most windy month in Hamilton Island is March when the average maximum windspeed is 46KM/H (29MPH) and the average wind speed is 33KM/H (21MPH).

More info about the annual wind conditions.

Annual Temperature for Hamilton Island

The hottest month in Hamilton Island is December when the average maximum temperature is 29°C (85°F), average temperature is 27°C (80°F) and average minimum temperature is 24°C (76°F).

The coolest month in Hamilton Island is July when the average maximum temperature is 21°C (21°F), average temperature is 19°C (67°F) and average minimum temperature is 18°C (64°F).

Annual Sunshine for Hamilton Island

The longest days in Hamilton Island are in December, with an average of 13.4 hours of daylight per day. June has the shortest days with an average of 10.9 hours of daylight per day.

The sunniest days in Hamilton Island are in January which has the most hours of sunshine per day. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.0 hours of sunshine per day.

May has the least sunshine. The sunshine percentage is 35% making it very cloudy and overcast with some periods of sunshine. There are 3.9 hours of sunshine per day.

The ultraviolet index is the highest in January when it reaches 15.7 and lowest in June when it reaches 6.3.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Hamilton Island

The warmest sea water temperatures in Hamilton Island are found in February when they peak at 28°C (83°F) and lowest in August when they dip to 22°C (72°F).

The sea is best for swimming between November and May when the temperature is above 25°C (77°F) which is warm and pleasant for relaxing and swimming for long periods.

Annual Rainfall for Hamilton Island

The wettest month in Hamilton Island is March with 31.2cm (12.3inches) of rain and February has the most days of rain with 16 days with some rain, a wet time to visit the beach.

The driest month in Hamilton Island is September with 2cm (0.8inches) of rain and October has the fewest days of rain with 4.1 days with some rain, a very dry time to visit the beach.

Annual Humidity for Hamilton Island

The most humid month in Hamilton Island is February with a dew point (an indicator of humidity) of 24°C (76°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.

The least humid month in Hamilton Island is July with a dew point of 17°C (62°F) which is OK for most but slightly uncomfortable for some.

Annual Wind Speed for Hamilton Island

The most windy month in Hamilton Island is March when the average maximum windspeed is 46KM/H (29MPH) and the average wind speed is 33KM/H (21MPH).

The least windy month in Hamilton Island is August when the average maximum windspeed is 34KM/H (21MPH) and the average wind speed is 23KM/H (14MPH).

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