Johanna Beach Weather Forecast
- 10
- 12
Rain
- 11
- 14
Showers
- 9
- 14
Showers increasing
- 9
- 13
Showers. Windy
- 10
- 14
Showers
- 10
- 14
Showers easing
- 10
- 14
Shower or two
Today 9 Aug South West
Cloudy. Very high chance of rain. Winds north to northeasterly 20 to 30 km/h tending east to northeasterly 15 to 20 km/h in the evening.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- North to northeasterly 10 to 15 knots, reaching up to 20 knots in the east in the late afternoon. Winds becoming variable about 10 knots in the late evening.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre later in the evening.
- 1st Swell
- Southwesterly 2 to 2.5 metres.
- Weather
- Cloudy. 90% chance of rain.
- Weather Situation
- A low pressure system over South Australia is forecast to move over western Victoria overnight. The low will then slowly move over eastern Bass Strait later Monday morning, while extending a trough over western and central Victoria during Monday afternoon and early evening. A ridge of high pressure will build over Victoria on Tuesday, ahead of a cold front to cross the state early on Wednesday. A high pressure system is expected to build over the Bight on Thursday and extend a ridge across Victoria.
Johanna Beach Temperature Statistics View More
August Temperature
Cape Otway (15km)
Lowest 1 August, 2026
6.4 °CAverage August
11.1 °CHighest 2 August, 2026
16.4 °C
Climate (2021–2026)
Cape Otway (15km)
Average Low 2021–2026
11.8 °CAverage 2021–2026
14.3 °CAverage High 2021–2026
17.5 °C