Flat Top Island Weather Forecast
- 16
- 26
Cloud clearing
- 12
- 26
Sunny
- 15
- 25
Showers easing
- 16
- 24
Possible shower
- 16
- 25
Partly cloudy
- 12
- 26
Cloud clearing
- 12
- 26
Mostly sunny
Today 15 Sep Mackay
Slight chance of a shower in the morning. Sunny afternoon. Winds southeasterly 15 to 25 km/h becoming light in the evening.
Mackay Costal Waters
Bowen to St Lawrence- Wind
- Southeasterly 15 to 20 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres offshore.
- 1st Swell
- Easterly around 1 metre offshore.
- Weather
- Mostly sunny.
Flat Top Island Temperature Statistics View More
September Temperature
Mackay (Mount Basset) (5km)
Lowest 4 September, 2026
14.2 °CAverage September
20.9 °CHighest 4 September, 2026
27.3 °C
Climate (2021–2026)
Mackay (Mount Basset) (5km)
Average Low 2021–2026
20.1 °CAverage 2021–2026
23.5 °CAverage High 2021–2026
27.5 °C