Treachery Beach Weather Forecast
- 12
- 22
Partly cloudy
- 13
- 22
Shower
- 13
- 20
Partly cloudy
- 9
- 19
Partly cloudy
- 10
- 18
Shower
- 9
- 18
Shower
- 9
- 17
Shower
Today 18 Jun Mid North Coast
Mostly clear. Winds northwest to northeasterly 15 to 20 km/h becoming light in the late afternoon.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Port Stephens in the evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres offshore by early evening.
- 1st Swell
- Northeasterly around 1 metre.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system over the Tasman Sea is extending ridge across the northern coastal waters while drifting eastwards, bringing a north to northwesterly airstream today. Winds will freshen as a cold front approaches from the west, before turning westerly on Saturday following its passage. From late Saturday or Sunday, winds will turn southerly as a second cold front brushes the coast.
Treachery Beach Temperature Statistics View More
June Temperature
Taree Airport (62km)
Lowest 2 June, 2026
5.5 °CAverage June
14.7 °CHighest 10 June, 2026
23.4 °C
Climate (2021–2026)
Taree Airport (62km)
Average Low 2021–2026
13.1 °CAverage 2021–2026
18.1 °CAverage High 2021–2026
24.3 °C