Usk Reservoir Weather Forecast

    • 10
    • 16

    Cloudy

    • 14
    • 16

    Light rain

    • 13
    • 18

    Overcast

    • 12
    • 18

    Light rain

    • 10
    • 14

    Light rain shower

    • 11
    • 14

    Overcast

Today 11 Sep Wales

Isolated showers first thing Friday morning, but dissipating under a ridge of high pressure. This leaves brighter spells in the afternoon, especially in the west. Temperatures will be near average. Maximum temperature 20 °C.

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Usk Reservoir Temperature Statistics

September Temperature

Sennybridge (15km)

  • Lowest 10 September, 2026

    5.1 °C

  • Average September

    13.7 °C

  • Highest 6 September, 2026

    23.2 °C

Climate (2021–2026)

Sennybridge (15km)

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  • Average Low 2021–2026

    5.7 °C

  • Average 2021–2026

    9.5 °C

  • Average High 2021–2026

    13 °C
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