Number One Cove Weather Forecast

    • 11
    • 31

    Mostly sunny

    • 15
    • 22

    Sunny

    • 11
    • 21

    Shower or two

    • 12
    • 19

    Shower or two

    • 7
    • 21

    Shower or two

    • 11
    • 18

    Shower or two

    • 9
    • 20

    Possible shower

Today 5 Sep Hunter

Mostly sunny day. Slight chance of a shower in the late afternoon and evening. The chance of a thunderstorm about the Upper Hunter in the late afternoon and evening. Winds north to northwesterly 25 to 35 km/h becoming northwesterly 30 to 45 km/h in the middle of the day. Daytime maximum temperatures 26 to 31.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Northerly 15 to 25 knots, reaching up to 30 knots offshore south of Norah Head in the late afternoon. Winds turning northwesterly 15 to 20 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres around midday.
1st Swell
Southerly 1 to 1.5 metres.
Weather
Mostly sunny day. The chance of a thunderstorm south of Port Stephens in the evening.
Weather Situation
North to northwesterly winds over Coastal Waters ahead of a vigorous cold front crossing the waters late today into Sunday. Winds turning westerly in behind the front before tending southwesterly to southerly as a high pressure ridge begins to form over the NSW coast. The ridge will persist into the new week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Number One Cove Temperature Statistics View More

September Temperature

Williamtown RAAF Base (20km)

  • Lowest 1 September, 2026

    5.4 °C

  • Average September

    17.8 °C

  • Highest 3 September, 2026

    29.6 °C

Climate (2021–2026)

Williamtown RAAF Base (20km)

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  • Average Low 2021–2026

    13.5 °C

  • Average 2021–2026

    18.2 °C

  • Average High 2021–2026

    24 °C
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