River Tamar - Big Bay Weather Forecast
- 11
- 14
Rain. Heavy falls possible
- 9
- 14
Cloudy
- 9
- 15
Partly cloudy
- 9
- 15
Partly cloudy
- 7
- 14
Shower or two
- 6
- 13
Partly cloudy
- 5
- 14
Partly cloudy
Today 22 Oct Central North
Cloudy. Very high chance of rain, becoming less likely in the evening. The chance of a thunderstorm in the afternoon. Heavy falls possible. Winds northeast to southeasterly 15 to 20 km/h tending southeast to southwesterly 20 to 30 km/h in the late afternoon then tending northwest to southwesterly 15 to 25 km/h in the late evening. Daytime maximum temperatures around 13.
Central North Coastal Waters
Stanley to Flinders Island- Wind
- North to northeasterly 15 to 20 knots shifting west to southwesterly 20 to 30 knots in the early afternoon. Winds reaching up to 45 knots in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon, then increasing to 2 to 3 metres by early evening.
- 1st Swell
- Westerly below 1 metre.
- Weather
- Cloudy. 95% chance of rain. The chance of a thunderstorm in the afternoon and early evening.
- Weather Situation
- A low pressure system to the southwest of Victoria is forecast to move through Bass Strait and over Tasmania today, with a southwesterly airstream to follow during the evening. The airstream shifts west to southwesterly on Thursday and persists into Friday, as a ridge of high pressure sits over the southern mainland.
River Tamar - Big Bay Temperature Statistics View More
October Temperature
Low Head (14km)
Lowest 13 October, 2025
4.9 °CAverage October
12.3 °CHighest 5 October, 2025
16.1 °C
Climate (2020–Present)
Low Head (14km)
Average Low 2020–2025
10.8 °CAverage 2020–2025
13.9 °CAverage High 2020–2025
17.1 °C