Portland Harbour Weather Forecast

    • 12
    • 20

    Sunny day

    • 14
    • 19

    Sunny day

    • 14
    • 20

    Sunny day

    • 16
    • 22

    Sunny day

    • 17
    • 22

    Partly cloudy

    • 16
    • 23

    Sunny day

    • 16
    • 22

    Sunny day

Today 16 Jun South West England

Any low cloud, patchy mist and fog lifting and clearing fairly readily in the morning to leave a fine day. Some lengthy sunny spells developing, and continuing this way into the afternoon. Light winds, and feeling warm in the sunshine. Maximum Temperature 21C.

Tonight 16 Jun South West England

Any cloud gradually melting away to leave some late sunshine for many. Staying dry overnight with fog patches developing inland under the clear skies. Generally mild but becoming locally cool in the countryside. Perhaps turning somewhat cloudier in Cornwall later. Minimum Temperature 8C.

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Portland Harbour Temperature Statistics

June Temperature

Isle Of Portland (6km)

  • Lowest 8 June, 2025

    11.8 °C
  • Average June

    14.5 °C
  • Highest 13 June, 2025

    19.9 °C

Climate (2020–Present)

Isle Of Portland (6km)

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  • Average Low 2020–2025

    10.2 °C
  • Average 2020–2025

    12.1 °C
  • Average High 2020–2025

    14 °C
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