Cat Island Weather Forecast
- 9
- 11
Partly cloudy
- 11
- 13
Windy
- 12
- 15
Windy
- 14
- 15
Windy
- 14
- 17
Windy
- 12
- 13
Windy
- 11
- 13
Partly cloudy
Today 16 Sep Furneaux Islands
Partly cloudy. Winds southwesterly 25 to 35 km/h decreasing to 15 to 25 km/h in the middle of the day then turning westerly 15 to 20 km/h in the late afternoon. Overnight temperatures falling to around 7 with daytime temperatures reaching around 14.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Southwesterly 15 to 25 knots, reaching up to 30 knots offshore during the morning. Winds turning westerly 10 to 15 knots in the evening.
- Seas
- 2 to 3 metres, decreasing to 1 to 1.5 metres during the afternoon, then decreasing to 1 metre by early evening.
- 1st Swell
- Southerly 1.5 to 2.5 metres.
- Weather
- Partly cloudy.
Cat Island Temperature Statistics View More
September Temperature
Flinders Island Airport (34km)
Lowest 11 September, 2026
1.8 °CAverage September
12.4 °CHighest 13 September, 2026
22.3 °C
Climate (2021–2026)
Flinders Island Airport (34km)
Average Low 2021–2026
10.4 °CAverage 2021–2026
14.3 °CAverage High 2021–2026
18.4 °C