Guillotine Beach Weather Forecast

    • 14
    • 24

    Mostly sunny

    • 14
    • 23

    Showers increasing

    • 11
    • 19

    Shower or two

    • 10
    • 18

    Showers easing

    • 9
    • 20

    Showers

    • 10
    • 20

    Shower or two

    • 10
    • 21

    Possible shower

Today 12 May South West

Sunny. The chance of smoke haze in the south. Winds northwesterly 20 to 30 km/h turning northerly 15 to 20 km/h in the late afternoon.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Northwesterly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
Westerly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Partly cloudy. 50% chance of showers offshore, near zero chance elsewhere. The chance of a thunderstorm.
Weather Situation
A ridge over southern and central WA is slowly weakening. A weak cold front will move across the South West Capes later Wednesday afternoon and then the remainder of the South West Land Division on Wednesday evening and into Thursday, followed by another cold front brushing past the south coast on Thursday night into Friday. A new ridge will extend over southwest WA later Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Guillotine Beach Temperature Statistics View More

May Temperature

Cape Naturaliste (32km)

  • Lowest 5 May, 2026

    9.3 °C

  • Average May

    15.7 °C

  • Highest 10 May, 2026

    21.6 °C

Climate (2021–Present)

Cape Naturaliste (32km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    17.2 °C

  • Average High 2021–2026

    22.7 °C
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