Cape Heirisson Weather Forecast

    • 23
    • 25

    Sunny

    • 22
    • 25

    Becoming windy. Sunny

    • 22
    • 25

    Becoming windy. Sunny

    • 22
    • 25

    Sunny

    • 23
    • 28

    Sunny

    • 25
    • 31

    Sunny

    • 24
    • 27

    Becoming windy. Sunny

Today 16 Jan Gascoyne

Partly cloudy. Slight chance of a shower inland, near zero chance elsewhere. The chance of a thunderstorm inland in the afternoon and evening. Winds northeast to southeasterly 20 to 30 km/h tending northwest to northeasterly 15 to 25 km/h in the morning then tending southeast to southwesterly in the evening. Daytime maximum temperatures in the low to mid 40s.

Gascoyne Coastal Waters

Cape Cuvier to Kalbarri
Wind
Southerly 15 to 20 knots increasing to 20 to 25 knots in the early afternoon. Winds reaching up to 30 knots in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Sunny.
Weather Situation
A west coast trough is deepening as a ridge over the southeast of the state moves away. The trough will move inland today ahead of a weak cold front brushing past the south coast tomorrow. A new ridge will develop about southwest WA from the weekend and expand along southern WA on Monday. A west coast trough will return later Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Heirisson Temperature Statistics View More

January Temperature

Shark Bay Airport (25km)

  • Lowest 1 January, 2026

    19.4 °C

  • Average January

    25.9 °C

  • Highest 1 January, 2026

    38.7 °C

Climate (2021–Present)

Shark Bay Airport (25km)

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  • Average Low 2021–2026

    16.8 °C

  • Average 2021–2026

    22.3 °C

  • Average High 2021–2026

    29.6 °C
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