Isthmus Bay Weather Forecast

    • 7
    • 12

    Cloudy

    • 6
    • 13

    Partly cloudy

    • 5
    • 13

    Late shower or two

    • 7
    • 11

    Showers easing

    • 6
    • 12

    Shower or two

    • 5
    • 13

    Partly cloudy

    • 6
    • 13

    Partly cloudy

Today 20 Jun South East

Cloudy. Medium chance of showers in the far south, slight chance elsewhere. Winds west to southwesterly 15 to 20 km/h becoming light in the evening. Daytime maximum temperatures between 8 and 12.

Channel

Wind
Southwesterly about 10 knots becoming west to northwesterly in the late afternoon.
Seas
Below 1 metre.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight is maintaining a ridge over Tasmania over the weekend. A warmer northwesterly airstream is then expected to develop during Monday as the ridge gradually moves to the east and a cold front approaches from the west. The cold front is expected to move over Tasmania on Tuesday resulting in a return to cooler southwesterly flow. Another high pressure system approaches from the west on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Isthmus Bay Temperature Statistics View More

June Temperature

Dover (27km)

  • Lowest 15 June, 2026

    1.1 °C

  • Average June

    9 °C

  • Highest 12 June, 2026

    18.2 °C

Climate (2021–2026)

Dover (27km)

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  • Average Low 2021–2026

    6.9 °C

  • Average 2021–2026

    10 °C

  • Average High 2021–2026

    17 °C
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