Sommers Bay Weather Forecast
- 10
- 20
Rain increasing
- 12
- 19
Showers easing
- 10
- 16
Shower or two
- 11
- 15
Showers. Windy
- 9
- 14
Showers. Windy
- 10
- 17
Shower or two
- 10
- 20
Sunny
Today 21 Dec South East
Partly cloudy. Very high chance of rain in the late afternoon and evening. Winds west to northwesterly 15 to 25 km/h tending northeast to southeasterly in the middle of the day then tending southeast to southwesterly 20 to 30 km/h in the evening. Overnight temperatures falling to between 7 and 11 with daytime temperatures reaching between 18 and 23.
Frederick Henry Bay and Norfolk Bay Boating
- Wind
- Variable below 10 knots becoming east to northeasterly 15 to 20 knots in the middle of the day then shifting southerly in the late evening.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy. 90% chance of rain late this afternoon and evening.
- Weather Situation
- A broad low pressure system near the west of Tasmania clears to the southeast into Sunday morning before a second, more intense, low pressure system is forecast to move across Bass Strait during Sunday and clear to the east Monday morning. A ridge of high pressure is expected to extend across the southern mainland, forecast to direct a westerly flow over Tasmania from Monday. Cold fronts embedded in the flow are expected to cross Tasmania late Monday and again Wednesday.
Sommers Bay Temperature Statistics View More
December Temperature
Tasman Island (32km)
Lowest 7 December, 2025
5.4 °CAverage December
12.4 °CHighest 4 December, 2025
24.6 °C
Climate (2020–Present)
Tasman Island (32km)
Average Low 2020–2025
9.3 °CAverage 2020–2025
11.5 °CAverage High 2020–2025
14.5 °C