Half Moon Bay Weather Forecast
- 12
- 22
Showers. Windy
- 10
- 20
Possible shower
- 8
- 18
Shower or two
- 5
- 13
Shower or two
- 6
- 15
Shower or two
- 6
- 16
Possible shower
- 6
- 18
Partly cloudy
Today 7 Sep Melbourne
Cloudy. Very high chance of showers. The chance of a thunderstorm. Damaging winds possible. Winds northerly 30 to 45 km/h.
Port Phillip Local Waters
- Wind
- North to northeasterly 15 to 25 knots becoming northerly 20 to 30 knots before dawn then decreasing to 15 to 25 knots in the evening. Winds reaching up to 35 knots during the morning and early afternoon. Squalls possible.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning, then decreasing below 1.5 metres later in the evening.
- Weather
- Cloudy. 95% chance of showers. The chance of a thunderstorm.
Half Moon Bay Temperature Statistics View More
September Temperature
Moorabbin Airport (21km)
Lowest 6 September, 2025
0.7 °CAverage September
11.2 °CHighest 3 September, 2025
19.1 °C
Climate (2020–Present)
Moorabbin Airport (21km)
Average Low 2020–2025
10.8 °CAverage 2020–2025
15.2 °CAverage High 2020–2025
20.3 °C