Johnsons Bay Weather Forecast
- 11
- 22
Shower
- 8
- 13
Shower
- 7
- 15
Partly cloudy
- 6
- 16
Partly cloudy
- 8
- 19
Shower
- 12
- 19
Shower
- 10
- 15
Shower
Today 20 Sep Western
Partly cloudy. Very high chance of showers, most likely in the late afternoon and evening. Possible small hail at night. Damaging winds possible. Winds northerly 35 to 50 km/h turning westerly 40 to 60 km/h during the afternoon and evening. Overnight temperatures falling to between 3 and 9 with daytime temperatures reaching between 19 and 23.
Central West Coastal Waters
Low Rocky Point to Sandy Cape- Wind
- North to northwesterly 20 to 30 knots, reaching up to 35 knots in the early afternoon. Winds turning west to southwesterly 25 to 30 knots in the evening.
- Seas
- 1.5 to 2.5 metres, increasing to 2.5 to 4 metres during the morning.
- 1st Swell
- Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning, then tending westerly 4 to 5 metres later in the evening.
- Weather
- Becoming cloudy. 90% chance of showers, with possible small hail later tonight.
- Weather Situation
- Warm northwesterly winds expected ahead of a cold front crossing the state this evening. The flow will tend colder southwesterly on Monday morning, with a high to establish over the Bight later Monday. This high is expected to move to the north of Tasmania on Tuesday morning and lie over the northern Tasman Sea during Wednesday.
Johnsons Bay Temperature Statistics View More
September Temperature
Luncheon Hill (Forestry) (46km)
Lowest 16 September, 2026
2.3 °CAverage September
8.7 °CHighest 12 September, 2026
20.1 °C
Climate (2021–2026)
Luncheon Hill (Forestry) (46km)
Average Low 2021–2026
7.7 °CAverage 2021–2026
11 °CAverage High 2021–2026
16.3 °C