Rottnest Island
Australia
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Rottnest Island, Australia

Rocks, turquoise-blue waters, and white sands on the Pinky Beach on Rottnest Island, with the Bathurst Lighthouse, in Perth, Australia
Rocks, turquoise-blue waters, and white sands on the Pinky Beach on Rottnest Island, with the Bathurst Lighthouse, in Perth, Australia
January, the same as December, is a moderately hot summer month in Rottnest Island, Australia, with temperature in the range of an average high of 26.5°C (79.7°F) and an average low of 19.1°C (66.4°F). In January, the average high-temperature is essentially the same as in December - a still warm 26.5°C (79.7°F). Weather in January »

The last month of the summer, February, is also a moderately hot month in Rottnest Island, Australia, with average temperature varying between 27.4°C (81.3°F) and 19.5°C (67.1°F). February is the warmest month, with an average high-temperature of 27.4°C (81.3°F) and an average low-temperature of 19.5°C (67.1°F). The average heat index in February is evaluated at 28.7°C (83.7°F). Weather in February »

March, the first month of the autumn, in Rottnest Island, is also a moderately hot month, with temperature in the range of an average high of 26.1°C (79°F) and an average low of 18.7°C (65.7°F). In Rottnest Island, the average high-temperature in March is essentially the same as in February - a still warm 26.1°C (79°F). Weather in March »

April, like March, in Rottnest Island, Australia, is another warm autumn month, with temperature in the range of an average low of 17.3°C (63.1°F) and an average high of 23.8°C (74.8°F). In Rottnest Island, the average high-temperature is practically the same as in March - a still warm 23.8°C (74.8°F). Weather in April »

The last month of the autumn, May, is another pleasant month in Rottnest Island, Australia, with average temperature fluctuating between 21.1°C (70°F) and 15.3°C (59.5°F). In May, the average high-temperature is almost the same as in April - an agreeable 21.1°C (70°F). Weather in May »

The first month of the winter, June, is still a comfortable month in Rottnest Island, Australia, with average temperature fluctuating between 18.7°C (65.7°F) and 13.4°C (56.1°F). In June, the average high-temperature is essentially the same as in May - an enjoyable 18.7°C (65.7°F). Weather in June »

July, like June, in Rottnest Island, Australia, is another enjoyable winter month, with average temperature fluctuating between 17.7°C (63.9°F) and 12.3°C (54.1°F). With an average high-temperature of 17.7°C (63.9°F) and an average low-temperature of 12.3°C (54.1°F), July is the coldest month. Weather in July »

August, the last month of the winter, in Rottnest Island, is also an enjoyable month, with average temperature ranging between max 18°C (64.4°F) and min 12.5°C (54.5°F). In Rottnest Island, Australia, the average high-temperature is relatively the same as in July - a still comfortable 18°C (64.4°F). Weather in August »

September, the first month of the spring, in Rottnest Island, is also an enjoyable month, with temperature in the range of an average low of 12.9°C (55.2°F) and an average high of 18.9°C (66°F). In September, the average high-temperature is essentially the same as in August - a still comfortable 18.9°C (66°F). Weather in September »

October in Rottnest Island, Australia, is an agreeable spring month, with average temperature ranging between max 20.6°C (69.1°F) and min 14°C (57.2°F). In Rottnest Island, the average high-temperature in October is practically the same as in September - an agreeable 20.6°C (69.1°F). Weather in October »

The last month of the spring, November, is a moderately hot month in Rottnest Island, Australia, with average temperature ranging between max 23.1°C (73.6°F) and min 16°C (60.8°F). In Rottnest Island, the average high-temperature is essentially the same as in October - a moderately hot 23.1°C (73.6°F). Weather in November »

The first month of the summer, December, is still a warm month in Rottnest Island, Australia, with average temperature ranging between min 17.6°C (63.7°F) and max 25°C (77°F). In Rottnest Island, the average high-temperature is almost the same as in November - a still warm 25°C (77°F). Weather in December »

How much does it rain in Rottnest Island?

Throughout the year, there are 106.1 rainfall days, and 559.6mm (22") of precipitation is accumulated.

What is the warmest month in Rottnest Island?

The warmest month in Rottnest Island, Australia, is February, with an average high-temperature of 27.4°C (81.3°F) and an average low-temperature of 19.5°C (67.1°F).

What is the driest month in Rottnest Island?

The month with the least rainfall is February when the rain falls for 1.8 days and typically collects 7.3mm (0.3") of precipitation.

What is the least humid month in Rottnest Island?

March and May, with an average relative humidity of 60%, are the least humid months in Rottnest Island, Australia.

What is the month with the shortest days in Rottnest Island?

June has the shortest days of the year in Rottnest Island, Australia, with an average of 10.1h of daylight.

What is the coldest month in Rottnest Island?

July is the coldest month, with an average high-temperature of 17.7°C (63.9°F) and an average low-temperature of 12.3°C (54.1°F).

What is the most humid month in Rottnest Island?

Months with the highest humidity in Rottnest Island are July through September, with an average relative humidity of 64%.

What is the wettest month in Rottnest Island?

The month with the most rainfall is July when the rain falls for 17.4 days and typically aggregates up to 114.2mm (4.5") of precipitation.

When are the longest days in Rottnest Island?

The month with the longest days is December, with an average of 14.2h of daylight.
Average temperature - Rottnest Island, Australia
Average humidity - Rottnest Island, Australia
Average rainfall - Rottnest Island, Australia

The wettest month (with the highest rainfall) is July (114.2mm).
The driest month (with the lowest rainfall) is February (7.3mm).

Average rainfall days - Rottnest Island, Australia

The month with the highest number of rainy days is July (17.4 days).
The month with the lowest number of rainy days is February (1.8 days).

Average daylight - Rottnest Island, Australia

The month with the longest days is December (Average daylight: 14.2h).
The month with shortest days is June (Average daylight: 10.1h).