Kathleen Island Weather Forecast
- 1
- 20
Shower or two
- 13
- 18
Showers easing. Windy
- 10
- 17
Showers
- 6
- 15
Partly cloudy
- 3
- 17
Partly cloudy
- 4
- 17
Partly cloudy
- 7
- 17
Possible shower
Today 29 Sep Western
Cloudy. The chance of fog about higher ground in the early morning. Areas of morning frost. Medium chance of showers, most likely in the afternoon and evening. Winds northeasterly 20 to 30 km/h turning northerly 25 to 40 km/h during the day. Overnight temperatures falling to between minus 1 and 4 above zero with daytime temperatures reaching between 16 and 21.
South West Coastal Waters
South East Cape to Low Rocky Point- Wind
- North to northeasterly 10 to 15 knots becoming northerly 15 to 25 knots in the morning then increasing to 20 to 30 knots in the evening. Winds reaching up to 35 knots offshore in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres around midday, then increasing to 2 to 4 metres by early evening.
- 1st Swell
- Southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
- Weather
- Cloudy. 80% chance of showers.
- Weather Situation
- A high pressure system centred to the northeast of Tasmania extends a ridge over the state and is forecast to continue moving further east in coming days. Northerly flow is expected to build over Tasmania today ahead of an approaching trough, forecast to cross Wednesday morning. A broad trough is forecast to cross the state during Thursday as a cold front approaches from the west, crossing Friday evening. A ridge of high pressure is then expected to approach Tasmania from the west during Friday.
Kathleen Island Temperature Statistics View More
September Temperature
Maatsuyker Island (46km)
Lowest 16 September, 2026
3.8 °CAverage September
10.2 °CHighest 20 September, 2026
20.6 °C
Climate (2021–2026)
Maatsuyker Island (46km)
Average Low 2021–2026
9.5 °CAverage 2021–2026
11.7 °CAverage High 2021–2026
14.3 °C