Mercury Passage Weather Forecast
- 9
- 15
Clear
- 10
- 17
Sunny
- 11
- 17
Sunny
- 10
- 16
Mostly sunny
- 10
- 17
Shower or two
- 10
- 16
Cloudy
- 11
- 17
Shower or two
Today 28 Aug East Coast
Clear. Winds westerly 15 to 20 km/h.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- Southwesterly 15 to 20 knots, reaching up to 30 knots offshore in the late afternoon. Winds turning westerly in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore.
- 1st Swell
- Southwesterly 2 to 3 metres.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system south of the Bight will build and begin to extend a ridge to the north of Tasmania from late Friday into the weekend. The high pressure centre is expected to track well north of Tasmania on Monday, then move into the Tasman Sea with a strong cold front approaching from the west, crossing Tasmania on Tuesday.
Mercury Passage Temperature Statistics View More
August Temperature
Maria Island (Point Lesueur) (5km)
Lowest 7 August, 2026
6.9 °CAverage August
11.3 °CHighest 24 August, 2026
19.3 °C
Climate (2021–2026)
Maria Island (Point Lesueur) (5km)
Average Low 2021–2026
10.8 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
16.9 °C