Harnham Weather Forecast

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    • 17

    Sunny day

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    • 15

    Sunny day

    • 2
    • 14

    Sunny day

    • 5
    • 14

    Partly cloudy

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    • 12

    Cloudy

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    • 12

    Cloudy

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    Cloudy

Today 19 Mar South West England

A chilly start this morning but once any mist or fog clears, a fine Thursday is to come with warm spells of sunshine and light winds. Maximum temperature 15 °C.

Tonight 19 Mar South West England

Clear skies and light winds overnight leads to a risk of patchy mist and fog developing during the early hours of the morning. A chilly night ahead with some frost. Minimum temperature 2 °C.

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Harnham Temperature Statistics

March Temperature

Boscombe Down (12km)

  • Lowest 14 March, 2026

    0.4 °C

  • Average March

    8 °C

  • Highest 5 March, 2026

    15.7 °C

Climate (2021–2026)

Boscombe Down (12km)

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  • Average Low 2021–2026

    7.3 °C

  • Average 2021–2026

    11.1 °C

  • Average High 2021–2026

    15 °C
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