River Tamar - Johnstons Flats Weather Forecast
- 7
- 13
Showers. Windy
- 4
- 12
Sunny
- 4
- 14
Shower or two
- 6
- 15
Showers
- 6
- 13
Showers
- 3
- 12
Shower or two
- 4
- 13
Showers
Today 19 Jul Central North
Cloudy. Very high chance of showers, most likely during this afternoon and evening. Damaging winds possible. Winds north to northwesterly 35 to 55 km/h. Daytime maximum temperatures between 10 and 13.
Central North Coastal Waters
Stanley to Flinders Island- Wind
- Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the early morning. Winds reaching 30 to 35 knots in the middle of the day, then turning westerly 25 to 30 knots in the early evening.
- Seas
- 1.5 to 2.5 metres, increasing to 2.5 to 4 metres during the morning.
- 1st Swell
- Westerly 1 to 1.5 metres, tending northwesterly 1.5 to 2.5 metres during the morning, then tending west to northwesterly 2 to 3 metres during the afternoon.
- Weather
- Partly cloudy. 90% chance of showers.
- Weather Situation
- A northwesterly airstream persists over Tasmania ahead of a strong cold front, expected to cross the state from the west on Saturday. A high pressure system over mainland Australia extends a weak ridge over the Tasmania on Sunday, before moving into the Tasman Sea during Monday.
River Tamar - Johnstons Flats Temperature Statistics View More
July Temperature
Low Head (24km)
Lowest 1 July, 2025
3 °CAverage July
10.3 °CHighest 6 July, 2025
14.7 °C
Climate (2020–Present)
Low Head (24km)
Average Low 2020–2025
10.8 °CAverage 2020–2025
13.9 °CAverage High 2020–2025
17.1 °C