Seymour Weather Forecast
- 13
- 19
Rain
- 13
- 22
Shower or two
- 12
- 19
Shower or two
- 11
- 19
Partly cloudy
- 10
- 17
Partly cloudy
- 9
- 19
Cloudy
- 10
- 20
Partly cloudy
Today 21 Dec East Coast
Cloudy. Very high chance of rain. The chance of a thunderstorm near the coast later this evening. Winds east to northeasterly 15 to 25 km/h becoming light in the evening.
Upper East Coastal Waters
St Helens Point to Wineglass Bay- Wind
- North to northeasterly 10 to 15 knots decreasing to about 10 knots in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southerly below 1 metre.
- Weather
- Cloudy. 90% chance of rain. The chance of a thunderstorm later this evening.
- Weather Situation
- A low pressure system over the southern mainland is expected to deepen and move to the east coast of Tasmania, before progressing further into the Tasman Sea by early Monday. A ridge of high pressure is expected to extend across the mainland during Monday to direct a westerly flow over Tasmania from Monday to Wednesday. Cold fronts embedded in this flow are expected to cross Tasmania late Monday and again Wednesday. This slow moving high pressure system then moves south of the Bight on Thursday to direct a more southerly flow over the state.
Seymour Temperature Statistics View More
December Temperature
Bicheno (Council Depot) (14km)
Lowest 1 December, 2025
5.5 °CAverage December
16.2 °CHighest 4 December, 2025
32 °C
Climate (2020–Present)
Bicheno (Council Depot) (14km)
Average Low 2020–2025
10.4 °CAverage 2020–2025
14.2 °CAverage High 2020–2025
18.1 °C