Grant Bay Weather Forecast
- 11
- 16
Showers
- 10
- 16
Shower or two
- 10
- 17
Showers
- 6
- 13
Showers
- 9
- 16
Showers easing
- 10
- 16
Shower or two
- 10
- 16
Shower or two
Today 4 May South West
Cloudy. Very high chance of showers, most likely from late this morning. The chance of a thunderstorm from late this morning. Winds northerly 25 to 35 km/h increasing to 30 to 45 km/h in the morning then turning west to northwesterly 25 to 35 km/h in the afternoon. Daytime maximum temperatures between 15 and 18.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- North to northwesterly 20 to 30 knots shifting southwesterly 25 to 30 knots in the evening.
- Seas
- 1.5 to 2.5 metres, increasing to 2 to 4 metres offshore.
- 1st Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres around midday, then increasing to 1.5 to 2.5 metres during the afternoon.
- Weather
- Cloudy. Near 100% chance of showers. The chance of a thunderstorm.
- Weather Situation
- A low pressure system drifts eastward south of the Bight, extending a cold front over eastern Bass Strait. This front will continue to move slowly eastward, clearing the east of the Strait this morning. The low pressure system will then move over Bass Strait this overnight Monday with a cool southwesterly airstream in its wake. A cold front moving south of the Bight is likely to reach western waters later Wednesday or Thursday.
Grant Bay Temperature Statistics View More
May Temperature
Cape Nelson Lighthouse (8km)
Lowest 3 May, 2026
12.2 °CAverage May
18.7 °CHighest 1 May, 2026
28.1 °C
Climate (2021–Present)
Cape Nelson Lighthouse (8km)
Average Low 2021–2026
11.8 °CAverage 2021–2026
14.3 °CAverage High 2021–2026
17.6 °C