Bournda Island Weather Forecast

    • 17
    • 26

    Possible shower or storm

    • 16
    • 22

    Showers. Possible storm

    • 13
    • 18

    Rain. Becoming windy

    • 12
    • 18

    Shower or two

    • 13
    • 21

    Partly cloudy

    • 11
    • 22

    Mostly sunny

    • 14
    • 24

    Mostly sunny

Today 25 Mar South Coast

Partly cloudy. The chance of fog in the early morning. Medium chance of showers, most likely in the afternoon. The chance of a thunderstorm in the afternoon and early evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the south. Light winds. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching the mid to high 20s.

Eden Coastal Waters

Montague Island to Gabo Island
Wind
Northerly 15 to 20 knots decreasing to about 10 knots in the late afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
Northeasterly around 1 metre.
Weather
Mostly sunny. The chance of a thunderstorm during this afternoon and early evening.
Weather Situation
A high pressure system over the Tasman Sea is extending a ridge to eastern New South Wales and maintaining generally easterly airstream over much of the coastal waters. Meanwhile, a tropical low over the Coral Sea is deepening and heading south towards the northern Tasman Sea, bringing fresh southeasterly winds and large, powerful waves along the north coast before tracking into the southern Tasman Sea later in the week. A strong cold front then looks set to sweep the coastal waters on Thursday through Friday, with fresh to strong southwesterly winds in its wake. The southerly airstream will increase further to gale-force, and large, powerful waves will develop as a low forms off the south coast and brushes the southern and central parts of the coast between Friday and early Saturday, before the system heads into the Tasman Sea through the weekend.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Bournda Island Temperature Statistics View More

March Temperature

Merimbula Airport (10km)

  • Lowest 14 March, 2026

    7.8 °C
  • Average March

    19.5 °C
  • Highest 11 March, 2026

    28.1 °C

Climate (2021–Present)

Merimbula Airport (10km)

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  • Average Low 2021–2026

    10.5 °C
  • Average 2021–2026

    15.3 °C
  • Average High 2021–2026

    21.1 °C
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