Chatham Island Weather Forecast

    • 15
    • 20

    Partly cloudy

    • 20
    • 22

    Partly cloudy

    • 17
    • 20

    Showers increasing

    • 15
    • 17

    Showers. Windy

    • 16
    • 16

    Shower or two

    • 15
    • 18

    Possible shower

    • 16
    • 16

    Shower or two

Today 16 Sep South West

Partly cloudy. Slight chance of a shower, most likely during this afternoon and early evening. The chance of a thunderstorm during this afternoon and early evening. Light winds becoming northeasterly 15 to 20 km/h in the morning then becoming light in the middle of the day. Daytime maximum temperatures in the mid to high 20s.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
East to northeasterly 10 to 15 knots, reaching up to 20 knots offshore east of Cape Leeuwin during the morning. Winds becoming variable about 10 knots in the middle of the day then becoming east to northeasterly 10 to 15 knots in the late evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Mostly sunny. The chance of a thunderstorm inshore during this afternoon and early evening.
Weather Situation
A trough extends down the west coast while a strong ridge moves east over the Bight. From Thursday, the trough will become mobile and move inland, ahead of a cold front crossing the southwest on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Chatham Island Temperature Statistics View More

September Temperature

North Walpole (22km)

  • Lowest 1 September, 2026

    8.1 °C

  • Average September

    13.2 °C

  • Highest 11 September, 2026

    22.9 °C

Climate (2021–2026)

North Walpole (22km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    20.6 °C
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