Treachery Beach Weather Forecast

    • 15
    • 22

    Rain

    • 13
    • 20

    Shower

    • 12
    • 20

    Shower

    • 14
    • 21

    Shower

    • 16
    • 22

    Shower

    • 15
    • 22

    Shower

    • 14
    • 22

    Shower

Today 19 May Mid North Coast

Cloudy. Very high chance of rain, becoming less likely this afternoon. The chance of a thunderstorm. Winds northwest to northeasterly 15 to 25 km/h tending west to southwesterly in the middle of the day. Daytime maximum temperatures between 18 and 25.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
North to northwesterly 15 to 25 knots turning west to southwesterly during the morning and early afternoon. Winds reaching up to 30 knots offshore early in the morning and again in the evening.
Seas
2 to 3 metres, decreasing to 1 to 1.5 metres during the morning, increasing to 1 to 2 metres south of Port Stephens by early evening.
1st Swell
Northeasterly 2 to 3 metres.
Weather
Cloudy. 95% chance of rain. The chance of a thunderstorm.
Weather Situation
A trough is heading eastwards and forecast to cross the coastal waters during today. A low pressure has formed within the trough in the northeast of the state as the system enters the Tasman Sea later today. The low will then remain over the Tasman Sea while whipping fresh to strong southerly winds and large powerful swells to the coastline mid to late this week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Treachery Beach Temperature Statistics View More

May Temperature

Taree Airport (62km)

  • Lowest 8 May, 2026

    7.5 °C

  • Average May

    17.5 °C

  • Highest 4 May, 2026

    26 °C

Climate (2021–Present)

Taree Airport (62km)

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  • Average Low 2021–2026

    13.1 °C

  • Average 2021–2026

    18.1 °C

  • Average High 2021–2026

    24.3 °C
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