Gantheaume Bay Weather Forecast

    • 9
    • 22

    Shower or two

    • 11
    • 25

    Sunny

    • 11
    • 26

    Mostly sunny

    • 13
    • 26

    Partly cloudy

    • 13
    • 27

    Sunny

    • 11
    • 25

    Sunny

    • 14
    • 24

    Possible shower

Today 6 Sep Central West

Partly cloudy. Medium chance of showers during the morning and afternoon. Winds south to southeasterly 25 to 40 km/h. Daytime maximum temperatures between 19 and 22.

Gascoyne Coastal Waters

Cape Cuvier to Kalbarri
Wind
South to southwesterly 25 to 30 knots, reaching up to 35 knots offshore south of Denham early in the morning. Winds tending south to southeasterly 20 to 30 knots during the day.
Seas
2 to 3 metres.
1st Swell
Southwesterly 2.5 to 4 metres, increasing to 4 to 6 metres during the morning, then tending southerly 3 to 5 metres around midday.
Weather
Partly cloudy. 90% chance of showers offshore south of Denham, 60% chance elsewhere.
Caution
Large and powerful surf conditions are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing.
Weather Situation
A cold front moving along the south coast will weaken as it passes over the Esperance and Eucla coasts during today. East to southeasterly winds will then prevail over the waters as a new ridge develops over the Bight from today, gradually moving eastwards next week.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gantheaume Bay Temperature Statistics View More

September Temperature

Kalbarri (3km)

  • Lowest 3 September, 2026

    7 °C
  • Average September

    17.6 °C
  • Highest 1 September, 2026

    24.5 °C

Climate (2021–2026)

Kalbarri (3km)

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  • Average Low 2021–2026

    15.6 °C
  • Average 2021–2026

    22.3 °C
  • Average High 2021–2026

    28.3 °C
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