Diamond Island Weather Forecast

    • 14
    • 21

    Partly cloudy

    • 14
    • 23

    Mostly sunny

    • 14
    • 22

    Partly cloudy

    • 16
    • 25

    Shower or two

    • 15
    • 23

    Shower or two

    • 13
    • 25

    Mostly sunny

    • 13
    • 25

    Sunny

Today 14 Feb East Coast

Cloudy. Slight chance of a shower. Winds east to northeasterly 15 to 25 km/h becoming light in the late evening. Daytime maximum temperatures in the low to mid 20s.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northeasterly about 10 knots increasing to 10 to 15 knots in the early afternoon. Winds reaching up to 20 knots inshore in the evening.
Seas
Below 0.5 metres, increasing to around 1 metre around midday.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 1.5 to 2.5 metres offshore.
Weather
Partly cloudy.
Weather Situation
A ridge of high pressure persists over the state this weekend and is forecast to move away to the east and into the Tasman Sea on Monday. A cold front is forecast to approach from the west early Tuesday, crossing the state during the afternoon. A weak ridge is expected to develop over southeastern parts of the mainland on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Island Temperature Statistics View More

February Temperature

Bicheno (Council Depot) (2km)

  • Lowest 3 February, 2026

    9.5 °C

  • Average February

    17.2 °C

  • Highest 4 February, 2026

    29.5 °C

Climate (2021–Present)

Bicheno (Council Depot) (2km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    10.4 °C

  • Average 2021–2026

    14.2 °C

  • Average High 2021–2026

    18.1 °C
Get WillyWeather+ to remove ads