Cape Portland Weather Forecast
- 4
- 14
Shower
- 7
- 13
Windy
- 8
- 15
Windy
- 7
- 13
Windy
- 6
- 14
Partly cloudy
- 7
- 15
Partly cloudy
- 8
- 14
Partly cloudy
Today 11 Jul North East
Partly cloudy. Patchy morning fog. Very high chance of showers, most likely in the evening. Snow falling above 1500 metres. Light winds becoming northerly 20 to 30 km/h in the morning. Overnight temperatures falling to between 2 and 5 with daytime temperatures reaching between 9 and 14.
Banks Strait and Franklin
- Wind
- Northerly about 10 knots increasing to 15 to 20 knots in the middle of the day.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres about Banks Strait later in the evening.
- 1st Swell
- East to southeasterly below 1 metre.
- Weather
- Mostly sunny. 80% chance of showers.
- Weather Situation
- A high pressure centre lies to the east of Tasmania and extends a ridge over southeastern Australia. The high will move away to the east this evening and direct a northerly airstream over the state. The airstream will then strengthen during Saturday as a series of cold fronts slowly approach from the west. The first front is forecast to cross Tasmania late Saturday, with a fresh westerly airstream to follow during Sunday. A second cold front embedded in the strong westerly flow is expected to cross during Monday, bringing a much colder airstream to the state. Another cold front is then expected cross during Wednesday, bringing a fresh southwesterly airstream to the state.
Cape Portland Temperature Statistics View More
July Temperature
Swan Island (12km)
Lowest 5 July, 2026
6.4 °CAverage July
11.2 °CHighest 1 July, 2026
15.8 °C
Climate (2021–2026)
Swan Island (12km)
Average Low 2021–2026
12 °CAverage 2021–2026
14.4 °CAverage High 2021–2026
17.5 °C