Strangford Lough - Castleward Bay Weather Forecast

    • 14
    • 17

    Cloudy

    • 9
    • 17

    Light rain shower

    • 12
    • 15

    Partly cloudy

    • 9
    • 16

    Light rain shower

    • 11
    • 15

    Cloudy

    • 12
    • 16

    Cloudy

    • 12
    • 16

    Cloudy

Today 29 Sep Northern Ireland

Dry and mostly cloudy start with some brightness. Cloud soon lowering and thickening with some light rain possible through the afternoon. Winds strengthening further with gales possible near coasts. Maximum temperature 18 °C.

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Strangford Lough - Castleward Bay Temperature Statistics

September Temperature

Aldergrove (53km)

  • Lowest 23 September, 2026

    10 °C

  • Average September

    14.7 °C

  • Highest 21 September, 2026

    22.3 °C

Climate (2021–2026)

Aldergrove (53km)

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  • Average Low 2021–2026

    7.5 °C

  • Average 2021–2026

    10.4 °C

  • Average High 2021–2026

    13.4 °C
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