Ketchum Bay Weather Forecast
- 7
- 14
Showers increasing
- 7
- 14
Showers
- 5
- 11
Showers. Windy
- 7
- 12
Showers. Windy
- 6
- 11
Showers easing
- 6
- 12
Showers
- 7
- 12
Showers. Windy
Today 18 Sep Western
Cloudy. Very high chance of showers, most likely in the afternoon and evening. Snow falling above 900 metres. The chance of a thunderstorm in the afternoon and evening, possibly severe with damaging winds near the coast. Winds west to northwesterly 20 to 30 km/h turning northerly before dawn then tending north to northwesterly 25 to 40 km/h in the morning. Overnight temperatures falling to between 1 and 6 with daytime temperatures reaching between 10 and 15.
South West Coastal Waters
South East Cape to Low Rocky Point- Wind
- Northwesterly 20 to 25 knots increasing to 20 to 30 knots in the morning. Winds reaching up to 35 knots during the afternoon and evening.
- Seas
- 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
- 1st Swell
- Westerly 4 metres, decreasing to 3 metres during the morning.
- Weather
- Cloudy. 95% chance of showers. The chance of a thunderstorm from late this morning.
- Weather Situation
- A westerly airstream over Tasmania tends northwesterly today, as a high pressure system over eastern Victoria moves eastwards over the northern Tasman Sea. A series of cold fronts are expected to pass over Tasmania from early Friday morning.
Ketchum Bay Temperature Statistics View More
September Temperature
Maatsuyker Island (19km)
Lowest 5 September, 2025
3.4 °CAverage September
9.6 °CHighest 15 September, 2025
19.2 °C
Climate (2020–Present)
Maatsuyker Island (19km)
Average Low 2020–2025
9.5 °CAverage 2020–2025
11.7 °CAverage High 2020–2025
14.3 °C