Flat Rock Island Weather Forecast
- 7
- 19
Mostly sunny
- 9
- 18
Shower or two
- 12
- 20
Shower or two
- 11
- 22
Shower or two
- 11
- 20
Showers increasing
- 10
- 18
Shower or two
- 9
- 19
Shower or two
Today 21 May Batemans Bay
Mostly sunny. Slight chance of a shower. Light winds becoming south to southwesterly 15 to 20 km/h in the middle of the day then becoming light in the early afternoon.
Batemans Coastal Waters
Ulladulla to Montague Island- Wind
- Southerly 15 to 20 knots, reaching up to 30 knots offshore early in the morning.
- Seas
- 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southerly 1 to 1.5 metres inshore, increasing to 1 to 2 metres offshore.
- Weather
- Partly cloudy. 70% chance of showers.
- Weather Situation
- A high is drifting across southeast Australia, while a low lingers offshore in the Tasman Sea, whipping fresh to strong southerly winds and large, powerful waves along much of the coastline for the remainder of the week.
Flat Rock Island Temperature Statistics View More
May Temperature
Batemans Bay (Catalina Country Club) (11km)
Lowest 10 May, 2026
4.5 °CAverage May
15.6 °CHighest 3 May, 2026
25 °C
Climate (2021–Present)
Batemans Bay (Catalina Country Club) (11km)
Average Low 2021–2026
9.5 °CAverage 2021–2026
16.5 °CAverage High 2021–2026
22.5 °C