Gantheaume Bay Weather Forecast
- 9
- 22
Shower or two
- 11
- 25
Sunny
- 11
- 26
Mostly sunny
- 13
- 26
Partly cloudy
- 13
- 27
Sunny
- 11
- 25
Sunny
- 14
- 24
Possible shower
Today 6 Sep Central West
Partly cloudy. Medium chance of showers during the morning and afternoon. Winds south to southeasterly 25 to 40 km/h. Daytime maximum temperatures between 19 and 22.
Gascoyne Coastal Waters
Cape Cuvier to Kalbarri- Wind
- South to southwesterly 25 to 30 knots, reaching up to 35 knots offshore south of Denham early in the morning. Winds tending south to southeasterly 20 to 30 knots during the day.
- Seas
- 2 to 3 metres.
- 1st Swell
- Southwesterly 2.5 to 4 metres, increasing to 4 to 6 metres during the morning, then tending southerly 3 to 5 metres around midday.
- Weather
- Partly cloudy. 90% chance of showers offshore south of Denham, 60% chance elsewhere.
- Caution
- Large and powerful surf conditions are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing.
- Weather Situation
- A cold front moving along the south coast will weaken as it passes over the Esperance and Eucla coasts during today. East to southeasterly winds will then prevail over the waters as a new ridge develops over the Bight from today, gradually moving eastwards next week.
Gantheaume Bay Temperature Statistics View More
September Temperature
Kalbarri (3km)
Lowest 3 September, 2026
7 °CAverage September
17.6 °CHighest 1 September, 2026
24.5 °C
Climate (2021–2026)
Kalbarri (3km)
Average Low 2021–2026
15.6 °CAverage 2021–2026
22.3 °CAverage High 2021–2026
28.3 °C