Half Moon Bay Weather Forecast
- 10
- 21
Partly cloudy
- 14
- 22
Late shower or two
- 13
- 18
Rain
- 11
- 18
Shower or two
- 9
- 17
Shower or two
- 9
- 17
Shower or two
- 9
- 17
Partly cloudy
Today 15 May Geelong and Surf Coast
Partly cloudy. Winds northeasterly 15 to 20 km/h becoming light in the late evening.
Port Phillip Local Waters
- Wind
- Northeasterly 10 to 15 knots decreasing to about 10 knots in the late afternoon.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A large high pressure system centred over the Tasman Sea drifts slowly away to the southeast today. A slow-moving trough moving over South Australia will gradually move across Victoria over the weekend. A new ridge extends over northern Victoria behind the trough, and is expected to dominate conditions for much of next week, although a weak cold front will cross Bass Strait on Monday or Tuesday.
Half Moon Bay Temperature Statistics View More
May Temperature
Avalon Airport (23km)
Lowest 11 May, 2026
5.3 °CAverage May
14 °CHighest 1 May, 2026
29.3 °C
Climate (2021–Present)
Avalon Airport (23km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
20.6 °C