Nepean Bay Weather Forecast
- 6
- 11
Shower
- 7
- 13
Shower
- 5
- 14
Cloudy
- 5
- 14
Partly cloudy
- 5
- 13
Shower
- 5
- 13
Shower
- 6
- 13
Shower
Today 25 Jun Central
Cloudy. Very high chance of showers, becoming less likely in the evening. Snow possible above 600 metres. The chance of a thunderstorm in the morning and afternoon. Possible small hail. Winds westerly 20 to 30 km/h turning southwesterly 25 to 35 km/h in the middle of the day. Daytime maximum temperatures between 6 and 11.
Port Phillip Local Waters
- Wind
- Westerly 20 to 30 knots tending southwesterly in the afternoon then decreasing to 20 to 25 knots in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres in the north.
- Weather
- Cloudy. 95% chance of showers. The chance of a thunderstorm in the late morning and afternoon. Possible small hail. Squalls to 45 knots possible.
- Weather Situation
- Vigorous westerly flow will turn southwesterly as a cold front crosses Bass Strait this morning. Winds will moderate during Thursday as a high pressure system near the Bight approaches western Victoria and extends a ridge across the State. The high will remain to the west on Friday, with a weak cold front forecast to approach from the southwest on Saturday.
Nepean Bay Temperature Statistics View More
June Temperature
Avalon Airport (35km)
Lowest 22 June, 2025
-1.1 °CAverage June
9.5 °CHighest 23 June, 2025
21 °C
Climate (2020–Present)
Avalon Airport (35km)
Average Low 2020–2025
9.7 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
20.4 °C