January 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 January

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).

Temperature

The commencement of January introduces an average high-temperature of a still moderately hot 26.5°C (79.7°F), closely mirroring the preceding month. Rottnest Island, in January, witnesses an average low-temperature of 19.1°C (66.4°F).

Humidity

The average relative humidity in January in Rottnest Island is 63%.

Rainfall

In Rottnest Island, in January, during 2.4 rainfall days, 12mm (0.47") of precipitation is typically accumulated. Throughout the year, there are 106.1 rainfall days, and 560mm (22.05") of precipitation is accumulated.

Daylight

In Rottnest Island, the average length of the day in January is 13h and 58min.
On the first day of January, sunrise is at 5:14 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:20 pm AWST.
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Frequently asked questions

What is the usual temperature for Rottnest Island in January?

January temperatures in Rottnest Island, Australia, vary between a high-temperature of 26.5°C (79.7°F) and a low-temperature of 19.1°C (66.4°F).

What is the average humidity in January in Rottnest Island?

The average relative humidity in January in Rottnest Island is 63%.

How many days does it rain in January in Rottnest Island?

In January, in Rottnest Island, the rain falls for 2.4 days. Throughout January, 12mm (0.47") of precipitation is accumulated.

How many hours of daylight does Rottnest Island have in January?

The average day length in January is 13h and 58min.

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

On the first day of January, sunrise is at 5:14 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:20 pm AWST.
Average humidity
Average rainfall days
Average daylight

Average temperature in January
Rottnest Island, Australia

Average temperature in January - Rottnest Island, Australia
  • Average high temperature in January: 26.5°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 January: 19.1°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 January
Rottnest Island, Australia

Average humidity in January - Rottnest Island, Australia
  • Average humidity in January: 63%

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 January
Rottnest Island, Australia

Average rainfall in January - Rottnest Island, Australia
  • Average rainfall in January: 12.1mm

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 January
Rottnest Island, Australia

Average rainfall days in January - Rottnest Island, Australia
  • Average rainfall days in January: 2.4 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 January
Rottnest Island, Australia

Average daylight in January - Rottnest Island, Australia
  • Average daylight in January: 14h and 0min

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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