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Best
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Best
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Best
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Best
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Tan
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Tan
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Tan
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Tan
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Tan
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Tan
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Tan
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Tan
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Sea
22°
Swim
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Sea
23°
Swim
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Sea
23°
Swim
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Sea
23°
Swim
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Sea
23°
Swim
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Sea
22°
Swim
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Sea
21°
Swim
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Sea
17°
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Sea
17°
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Sea
17°
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Sea
18°
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Sea
19°
Swim
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The annual average maximum daily temperature is 25.0°C (77.0°F) which is warm and makes sunbathing pleasant on clear days. The annual average water temperature is typically 20.4°C (68.6°F) which is comfortable for swimming though some may prefer warmer water. Annually there are on average 10.0 days of rain per month and 7.5 hours of sun per day.
The best months to visit Rottnest Island are January, February, March, December, 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 November to April when the maximum temperature reaches above 26°C (72°F)
The sea is best for swimming between December and July when the sea temperature is above the average 20°C (69°F) which is comfortable for swimming though some may prefer warmer water.
No, you can't sunbathe in Rottnest 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 November to April when the maximum temperature reaches above 26°C (72°F)
More info about the annual temperatures and sunshine.
No, you can't swim in Rottnest Island all year round.
The warmest sea water temperatures in Rottnest Island are found in February when they peak at 23°C (74°F) and lowest in September when they dip to 17°C (62°F).
The sea temperature is above average for swimming between December and July when the sea temperature is above 20°C (69°F) which is comfortable for swimming though some may prefer warmer water.
For very comfortable swimming conditions try swimming in the months from December to June when the sea temperature is above 22°C (72°F)
More info about the annual sea temperatures
The hottest month in Rottnest Island is February when the average maximum temperature is very hot and perfect for sunbathing on clear days 32°C (90°F), average temperature is 25°C (77°F) and average minimum temperature is 18°C (65°F).
More info about the annual temperatures and sunshine.
The coolest month in Rottnest Island is July when the average maximum temperature is 18°C (65°F), average temperature is 12°C (54°F) and average minimum temperature is 7°C (45°F).
More info about the annual temperatures and sunshine
The driest month in Rottnest Island is January with 0.1cm (0.0inches) of rain and February has the fewest days of rain with 3.4 days with some rain, a very dry time to visit the beach.
More info about the annual rainfall
The coldest sea water temperatures in Rottnest Island are found in September when they dip to 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.
More info about the annual sea temperatures.
The warmest sea water temperatures in Rottnest Island are found in February when they peak at 23°C (74°F) which is warm and pleasant for relaxing and swimming for long periods.
More info about the annual sea temperatures.
The most humid month in Rottnest Island is January with a dew point (an indicator of humidity) of 16°C (61°F) which is comfortable for everyone.
More info about the annual humidity.
The least humid month in Rottnest Island is July with a dew point of 11°C (51°F) which is very comfortable.
More info about the annual humidity.
The most windy month in Rottnest Island is January when the average maximum windspeed is 34KM/H (21MPH) and the average wind speed is 20KM/H (12MPH).
More info about the annual wind conditions.
The hottest month in Rottnest Island is February when the average maximum temperature is 32°C (90°F), average temperature is 25°C (77°F) and average minimum temperature is 18°C (65°F).
The coolest month in Rottnest Island is July when the average maximum temperature is 18°C (18°F), average temperature is 12°C (54°F) and average minimum temperature is 7°C (45°F).
The longest days in Rottnest Island are in December, with an average of 14.2 hours of daylight per day. June has the shortest days with an average of 10.1 hours of daylight per day.
The sunniest days in Rottnest Island are in January which has the most hours of sunshine per day. The sunshine percentage is 71% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.7hrs making the days long and bright.
June has the least sunshine. The sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.9 hours of sunshine per day.
The ultraviolet index is the highest in January when it reaches 14.4 and lowest in June when it reaches 3.2.
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.
The warmest sea water temperatures in Rottnest Island are found in February when they peak at 23°C (74°F) and lowest in September when they dip to 17°C (62°F).
The sea is best for swimming between December and July when the temperature is above 20°C (69°F) which is comfortable for swimming though some may prefer warmer water.
The wettest month in Rottnest Island is August with 26.1cm (10.3inches) of rain and July has the most days of rain with 16.5 days with some rain, a wet time to visit the beach.
The driest month in Rottnest Island is January with 0.1cm (0.0inches) of rain and February has the fewest days of rain with 3.4 days with some rain, a very dry time to visit the beach.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
