Sisters Bay Weather Forecast
- 4
- 7
Showers increasing. Windy
- 2
- 11
Showers. Wind easing
- 7
- 10
Showers easing
- 7
- 12
Shower or two
- 8
- 13
Possible shower
- 7
- 11
Showers
- 4
- 8
Showers
Today 23 Jul South East
Cloudy. Very high chance of showers. Snow falling above 400 metres. The chance of a thunderstorm. Possible small hail. Damaging winds possible in the south from the afternoon. Winds northwesterly 25 to 35 km/h turning westerly 35 to 50 km/h during the morning. Overnight temperatures falling to between 1 and 5 with daytime temperatures reaching between 4 and 9.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- Westerly 20 to 30 knots, reaching up to 40 knots during the afternoon and evening. Winds turning southwesterly 25 to 30 knots in the late evening.
- Seas
- 2 to 3 metres, increasing to 2.5 to 4 metres during the afternoon.
- 1st Swell
- Southwesterly 2 to 4 metres, increasing to 4 to 7 metres by early evening.
- Weather
- Partly cloudy. 95% chance of showers. The chance of a thunderstorm. Possible small hail.
- Weather Situation
- A cold front approaches this morning, bringing a strong and cold west to southwesterly flow across the state. A warm front will then cross during Friday, bringing a much warmer westerly airstream to the state which persists into Saturday. A weak ridge is then expected to cross later Saturday with the airstream expected to tend more northwesterly during Sunday as a cold front approaches from the west.
Sisters Bay Temperature Statistics View More
July Temperature
Tasman Island (31km)
Lowest 4 July, 2026
3.9 °CAverage July
9.9 °CHighest 19 July, 2026
17 °C
Climate (2021–2026)
Tasman Island (31km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.5 °CAverage High 2021–2026
14.6 °C