Best year time to visit Rottnest Island

General weather information about Rottnest Island

Average annual temperature is 18.9 °C

Absolute maximum temperature: 30.9 °C

Absolute minimum temperature: 9.4 °C

Number of sunny days: 235 days

Number of rainy days: 130 days

Look at detailed online map of Rottnest Island

* Weather data for Rottnest Island Australia is based on climate observations for 2026 year

Rottnest Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)26.628.126.823.423.019.219.521.224.926.230.928.7
Average daytime temperature (°C)23.724.123.320.820.017.117.517.618.319.622.823.4
Average temperature (°C)21.422.121.619.018.215.516.216.017.217.920.421.4
Average night temperature (°C)19.019.719.417.015.813.814.613.815.415.718.219.1
Absolute minimum temperature (°C)16.116.417.513.812.99.411.310.610.113.115.415.8

Rottnest Island monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)14.013.012.011.010.010.010.011.012.013.014.014.0
Daylight mean duration (h)14.013.212.311.310.510.110.311.011.912.913.714.2
Daylight minimum duration (h)13.012.011.010.010.010.010.010.011.012.013.014.0
Sunshine mean duration (h)12.812.310.79.68.08.38.49.210.211.312.512.9
Precipitation (mm)00266248161913141780
Sunny days3027231418782112222429
Rainy days118161323231018962
Snow days000000000000

Rottnest Island - weather forecast by months

Rottnest Island weather in januaryRottnest Island weather in februaryRottnest Island weather in marchRottnest Island weather in aprilRottnest Island weather in mayRottnest Island weather in juneRottnest Island weather in julyRottnest Island weather in augustRottnest Island weather in septemberRottnest Island weather in octoberRottnest Island weather in novemberRottnest Island weather in december

Best time to visit Rottnest Island:

The largest precipitation sum in Rottnest Island is at

  • April — 62(mm)
  • June — 161(mm)
  • July — 91(mm)

    • Weather forecast in the closest to Rottnest Island admin centers

    Weather forecast in the closest towns to Rottnest Island

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    Frequently asked questions

    When is the best time to visit Rottnest Island?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Rottnest Island.
    What is the weather like in Rottnest Island?
    See average temperature, rainfall and daylight hours for Rottnest Island by month in the table above.
    How many sunny days does Rottnest Island have?
    The monthly weather statistics above show sunshine and rainfall patterns for Rottnest Island throughout the year.