Swainson Island Weather Forecast
- 8
- 23
Shower or two
- 12
- 17
Showers. Becoming windy
- 9
- 16
Shower or two
- 10
- 18
Partly cloudy
- 11
- 18
Possible shower
- 11
- 17
Shower or two
- 11
- 16
Possible shower
Today 9 Jan Western
Partly cloudy. The chance of fog early this morning. Medium chance of showers, most likely during this afternoon and early evening. The chance of a thunderstorm during the morning and afternoon. Winds northeast to southeasterly 15 to 20 km/h tending northwest to northeasterly 15 to 25 km/h in the middle of the day. Daytime maximum temperatures 21 to 26.
South West Coastal Waters
South East Cape to Low Rocky Point- Wind
- Variable about 10 knots becoming east to southeasterly 15 to 20 knots in the morning then tending east to northeasterly in the late afternoon.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres around midday.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Partly cloudy. 60% chance of showers.
- Weather Situation
- A trough lingers off the northeast coast during Thursday as a ridge of high pressure extends over Tasmania from the west. The trough is expected to slowly move eastwards on Friday, as a cold front approaches the west coast before crossing the state early Saturday. Another trough crosses from the west during Saturday evening. A high pressure system will move to a position over waters south of the Bight on Sunday and will extend a ridge over Tasmania into next week.
Swainson Island Temperature Statistics View More
January Temperature
Maatsuyker Island (43km)
Lowest 1 January, 2026
9.8 °CAverage January
13.4 °CHighest 7 January, 2026
17.7 °C
Climate (2021–Present)
Maatsuyker Island (43km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.6 °CAverage High 2021–2026
14.2 °C