Dianas Basin Weather Forecast
- 11
- 18
Becoming windy. Partly cloudy
- 8
- 19
Partly cloudy
- 9
- 17
Shower or two
- 8
- 16
Shower or two
- 8
- 16
Shower or two
- 8
- 17
Possible shower
- 7
- 19
Partly cloudy
Today 27 Nov St Helens
Partly cloudy. Winds west to northwesterly 25 to 40 km/h decreasing to 20 to 25 km/h in the evening.
Upper East Coastal Waters
St Helens Point to Wineglass Bay- Wind
- Westerly 20 to 30 knots decreasing to 15 to 25 knots in the early afternoon then tending west to northwesterly 20 to 30 knots in the late evening.
- Seas
- 1 to 2 metres, increasing to 2 to 3 metres offshore.
- 1st Swell
- South to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore around midday.
- Weather
- Partly cloudy.
Dianas Basin Temperature Statistics View More
November Temperature
St Helens Aerodrome (5km)
Lowest 21 November, 2025
4.8 °CAverage November
13.3 °CHighest 25 November, 2025
21.9 °C
Climate (2020–Present)
St Helens Aerodrome (5km)
Average Low 2020–2025
9.3 °CAverage 2020–2025
13.3 °CAverage High 2020–2025
18.2 °C