Observatory Island Weather Forecast

    • 13
    • 23

    Shower or two. Becoming windy

    • 9
    • 15

    Showers. Windy

    • 8
    • 18

    Shower or two

    • 9
    • 22

    Shower or two developing

    • 10
    • 18

    Shower or two. Becoming windy

    • 10
    • 17

    Showers

    • 10
    • 19

    Shower or two

Today 14 Sep Esperance

Partly cloudy. High chance of showers, most likely during the morning and afternoon. Damaging winds possible. Winds northwesterly 30 to 45 km/h turning westerly 30 to 40 km/h in the late evening.

Esperance Coastal Waters

Bremer Bay to Israelite Bay
Wind
Northwesterly 20 to 30 knots turning westerly 25 to 30 knots in the early afternoon. Winds reaching up to 35 knots in the evening.
Seas
1 to 2 metres, increasing to 2 to 3 metres around midday.
1st Swell
Southwesterly 2 to 3 metres, increasing to 2 to 4 metres west of Esperance during the afternoon.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm.
Weather Situation
A cold front over the southeast will continue to move east ahead of a stronger cold front on Sunday, bringing very windy conditions and large swells over western and southern waters. A ridge then builds about the central west coast from Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observatory Island Temperature Statistics View More

September Temperature

Esperance (13km)

  • Lowest 8 September, 2025

    5.5 °C

  • Average September

    13.1 °C

  • Highest 1 September, 2025

    24.1 °C

Climate (2020–Present)

Esperance (13km)

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  • Average Low 2020–2025

    12.6 °C

  • Average 2020–2025

    16.6 °C

  • Average High 2020–2025

    22.2 °C
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