Bay of Islands Weather Forecast

    • 5
    • 19

    Cloudy

    • 10
    • 17

    Windy

    • 6
    • 13

    Windy

    • 8
    • 15

    Shower

    • 8
    • 14

    Shower

    • 7
    • 15

    Shower

    • 9
    • 16

    Shower

Today 18 Sep South West

Partly cloudy. The chance of frost in the northeast in the early morning. Slight chance of a shower in the south in the evening. Near zero chance of rain elsewhere. Winds northerly 15 to 20 km/h tending north to northwesterly 30 to 45 km/h in the morning then becoming northerly 20 to 30 km/h in the evening. Overnight temperatures falling to around 4 with daytime temperatures reaching around 19.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
North to northwesterly 15 to 20 knots, reaching up to 25 knots in the far west in the late morning and early afternoon.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres in the far west during the morning.
1st Swell
Southwesterly 3 to 4 metres, tending westerly 2.5 to 3 metres during the morning.
Weather
Partly cloudy. The chance of a thunderstorm offshore in the afternoon and evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Bay of Islands Temperature Statistics View More

September Temperature

Warrnambool Airport (45km)

  • Lowest 5 September, 2025

    2 °C

  • Average September

    11.3 °C

  • Highest 15 September, 2025

    23.3 °C

Climate (2020–Present)

Warrnambool Airport (45km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.4 °C

  • Average High 2020–2025

    19.1 °C
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