What’s the climate like in Rottnest Island?
The current climate of Rottnest Island features average monthly temperatures ranging from highs of 31°C during the day to lows of 18°C. The average yearly temperature is around 25°C. At night, temperatures in the colder months average around 10°C and in the warmer months around 19°C.
The highest temperature recorded in Rottnest Island in recent years was 44°C in January 2014. The lowest daytime temperature recorded was 12°C in August 2022.
On average, Rottnest Island receives 650 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Curious about the climate in other parts of Australia? Check out the weather and climate in places like Sydney, Gold Coast, Melbourne, or have a look at other destinations in Australia.
Best time to visit Rottnest Island?
The best time to visit Rottnest Island for sunny weather is January through June and August through December. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Rottnest Island. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Rottnest Island
The climate table of Rottnest Island shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 31 | 30 | 28 | 25 | 22 | 19 | 18 | 19 | 20 | 22 | 26 | 29 |
| Temp. min (°C) | 19 | 19 | 19 | 15 | 12 | 11 | 11 | 10 | 11 | 13 | 15 | 18 |
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| Precipitation (mm) | 23 | 21 | 24 | 39 | 85 | 116 | 162 | 72 | 38 | 33 | 21 | 16 |
| UV Index | 10 | 9 | 8 | 7 | 5 | 5 | 5 | 6 | 8 | 9 | 9 | 10 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 25°C
- Highest temperature: 31°C in January
- Lowest temperature: 18°C in July
- Precipitation: 650 mm per year, averaging 54 mm per month
- Driest months: 16 mm in December, 21 mm in February and November
- Wettest months: 162 mm in July, 116 mm in June and 85 mm in May
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Table of Contents
Average Temperature per Month in Rottnest Island
This graph shows the average maximum temperatures per month in Rottnest Island, Australia. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Rottnest Island
This graph shows how much precipitation Rottnest Island, Australia, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Rottnest Island
This graph shows the average UV index per month in Rottnest Island, Australia. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Rottnest Island
This graph shows the average yearly temperature in Rottnest Island, Australia. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Rottnest Island
This chart shows the total yearly precipitation in Rottnest Island, Australia, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Rottnest Island
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Average Weather in Rottnest Island by Month
Click on a month below to see detailed weather info for Rottnest Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
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