Promise Rock Weather Forecast

    • 13
    • 21

    Clear

    • 9
    • 25

    Becoming windy. Sunny

    • 8
    • 17

    Wind easing. Sunny

    • 7
    • 16

    Mostly sunny

    • 6
    • 17

    Sunny

    • 8
    • 19

    Partly cloudy

    • 11
    • 22

    Shower or two

Today 19 Sep East Coast

Clear. Winds northwest to southwesterly 15 to 20 km/h becoming light in the evening.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
Southeast to southwesterly 15 to 20 knots, reaching up to 30 knots offshore in the late afternoon. Winds tending west to southwesterly in the evening then tending northwest to northeasterly 10 to 15 knots in the late evening.
Seas
2 to 3 metres, decreasing to 1 to 1.5 metres later in the evening.
1st Swell
Southwesterly 1.5 to 2.5 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Clear.
Weather Situation
A high to the north of Tasmania will extend of a weak ridge over Tasmania evening, with a warm northwesterly stream expected on Sunday ahead of a cold front to cross the state in the evening. The flow will tend colder southwesterly on Monday morning, with a high to establish over the Bight later Monday. This high is expected to move to the north of Tasmania on Tuesday morning and lie over the northern Tasman Sea during Wednesday.
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  • Temperature Forecast Bureau of Meteorology

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Promise Rock Temperature Statistics View More

September Temperature

Friendly Beaches (20km)

  • Lowest 8 September, 2026

    3.3 °C
  • Average September

    12.5 °C
  • Highest 14 September, 2026

    24.1 °C

Climate (2021–2026)

Friendly Beaches (20km)

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  • Average Low 2021–2026

    9.6 °C
  • Average 2021–2026

    13.6 °C
  • Average High 2021–2026

    18.9 °C
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