Akaroa Weather Forecast
- 5
- 17
Clear
- 7
- 21
Partly cloudy
- 12
- 21
Partly cloudy
- 8
- 16
Shower or two
- 5
- 15
Partly cloudy
- 4
- 17
Sunny
- 7
- 19
Mostly sunny
Today 12 Sep St Helens
Clear. Winds northeasterly 15 to 20 km/h becoming light in the evening.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Northwesterly about 10 knots increasing to 10 to 15 knots in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southerly 1 to 1.5 metres inshore, increasing to 1 to 2 metres offshore.
- Weather
- Clear.
- Weather Situation
- A high pressure system off the NSW coast is slowly moving over the Tasman Sea, with light winds over Tasmania expected to turn northwesterly as the high moves further offshore. A weak trough is expected to cross Tasmania late Sunday. A cold front is then expected to approach the state from the west on Monday, crossing Tasmania overnight. A southwesterly flow will establish over Tasmania from Tuesday, as a high in the Bight extends a ridge over the state on Wednesday.
Akaroa Temperature Statistics View More
September Temperature
St Helens Aerodrome (4km)
Lowest 8 September, 2026
3.5 °CAverage September
11.9 °CHighest 10 September, 2026
22.2 °C
Climate (2021–2026)
St Helens Aerodrome (4km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.3 °C