Cornwall Island Weather Forecast

    • 17
    • 18

    Windy

    • 17
    • 18

    Cloudy

    • 17
    • 18

    Partly cloudy

    • 17
    • 18

    Partly cloudy

    • 17
    • 18

    Windy

    • 17
    • 19

    Windy

    • 18
    • 20

    Partly cloudy

Today 27 Dec South East Coastal

Partly cloudy. The chance of a thunderstorm in the east late this afternoon and evening. Winds south to southwesterly 25 to 35 km/h tending south to southeasterly 15 to 20 km/h during the afternoon and evening. Daytime maximum temperatures 22 to 27.

Esperance Coastal Waters

Bremer Bay to Israelite Bay
Wind
Southwesterly 15 to 25 knots, reaching up to 30 knots east of Esperance early in the morning. Winds turning southerly 10 to 15 knots in the late afternoon.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres around midday.
1st Swell
Southwesterly 2 to 3 metres, increasing to 3 to 5 metres during the morning.
Weather
Cloudy.
Weather Situation
A trough has moved into the the interior ahead of a weak cold front moving along the south coast towards SA. A ridge is developing along the south coast during the weekend in the wake of the trough.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cornwall Island Temperature Statistics View More

December Temperature

Esperance (62km)

  • Lowest 14 December, 2025

    11.2 °C

  • Average December

    19.9 °C

  • Highest 16 December, 2025

    44.1 °C

Climate (2020–Present)

Esperance (62km)

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  • Average Low 2020–2025

    12.6 °C

  • Average 2020–2025

    16.6 °C

  • Average High 2020–2025

    22.3 °C
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