May weather forecast
Rottnest Island, Australia

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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

Weather in May

The last month of the autumn, May, is also an agreeable month in Rottnest Island, Australia, with an average temperature fluctuating between 15.3°C (59.5°F) and 21.1°C (70°F).

Temperature

At the onset of May, Rottnest Island records an average high-temperature of an agreeable 21.1°C (70°F), showing little deviation from the preceding month. In Rottnest Island, an average nighttime temperature of 15.3°C (59.5°F) is expected during May.

Humidity

The months with the lowest humidity are March and May, with an average relative humidity of 60%.

Rainfall

In Rottnest Island, in May, it is raining for 11.4 days, with typically 76mm (2.99") of accumulated precipitation. In Rottnest Island, Australia, during the entire year, the rain falls for 106.1 days and collects up to 560mm (22.05") of precipitation.

Daylight

In Rottnest Island, the average length of the day in May is 10h and 30min.
On the first day of the month, sunrise is at 6:49 am and sunset at 5:39 pm. On the last day of May, in Rottnest Island, Australia, sunrise is at 7:09 am and sunset at 5:21 pm AWST.
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Frequently asked questions

What is the usual temperature for Rottnest Island in May?

In Rottnest Island, 21.1°C (70°F) is the average high-temperature and 15.3°C (59.5°F) is the average low-temperature during May. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in February is computed to be 29°C (84.2°F).

What are the least humid months in Rottnest Island?

The months with the lowest humidity in Rottnest Island are March and May, with an average relative humidity of 60%.

What is the average humidity in May in Rottnest Island?

In May, the average relative humidity is 60%.

How much does it rain in Rottnest Island in May?

In Rottnest Island, in May, it is raining for 11.4 days, with typically 76mm (2.99") of accumulated precipitation.

What is the average length of the day in May in Rottnest Island?

In May, the average day length is 10h and 30min.

When is the sunrise / sunset in May in Rottnest Island?

On the first day of May in Rottnest Island, Australia, sunrise is at 6:49 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:21 pm AWST.
Average humidity
Average rainfall days
Average daylight

Average temperature in May
Rottnest Island, Australia

Average temperature in May - Rottnest Island, Australia
  • Average high temperature in May: 21.1°C

The warmest month (with the highest average high temperature) is February (27.4°C).
The month with the lowest average high temperature is July (17.7°C).

  • Average low temperature in May: 15.3°C

The month with the highest average low temperature is February (19.5°C).
The coldest month (with the lowest average low temperature) is July (12.3°C).

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Average humidity in May
Rottnest Island, Australia

Average humidity in May - Rottnest Island, Australia
  • Average humidity in May: 60%

The months with the highest relative humidity are July, August and September (64%).
The months with the lowest relative humidity are March and May (60%).

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Average rainfall in May
Rottnest Island, Australia

Average rainfall in May - Rottnest Island, Australia
  • Average rainfall in May: 76mm

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

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Average rainfall days in May
Rottnest Island, Australia

Average rainfall days in May - Rottnest Island, Australia
  • Average rainfall days in May: 11.4 days

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

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Average daylight in May
Rottnest Island, Australia

Average daylight in May - Rottnest Island, Australia
  • Average daylight in May: 10h and 3min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

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Rottnest Island, Australia

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