River Tamar - Supply Bay Weather Forecast
- 11
- 18
Rain increasing
- 10
- 14
Rain. Windy
- 7
- 14
Shower or two clearing
- 4
- 15
Showers
- 8
- 16
Showers
- 5
- 13
Showers
- 3
- 13
Shower or two
Today 15 Sep Central North
Partly cloudy. Very high chance of rain, most likely this evening. Winds northwesterly 30 to 45 km/h. Daytime maximum temperatures around 18.
Central North Coastal Waters
Stanley to Flinders Island- Wind
- North to northwesterly 15 to 25 knots, reaching up to 30 knots offshore in the late morning and early afternoon.
- Seas
- 2 to 3 metres.
- 1st Swell
- Westerly below 1 metre inshore, increasing to around 1 metre offshore.
- Weather
- Partly cloudy. 60% chance of showers.
- Weather Situation
- A series of troughs and cold fronts expected to cross the state during today and Tuesday. A high pressure system over mainland Australia directs a westerly airstream over Tasmania on Wednesday, ahead of another cold front approaching from the west on Thursday.
River Tamar - Supply Bay Temperature Statistics View More
September Temperature
Launceston (Ti Tree Bend) (22km)
Lowest 5 September, 2025
-0.4 °CAverage September
9.6 °CHighest 12 September, 2025
18.6 °C
Climate (2020–Present)
Launceston (Ti Tree Bend) (22km)
Average Low 2020–2025
7.8 °CAverage 2020–2025
13.2 °CAverage High 2020–2025
19.3 °C