Cardiff Weather Forecast

    • 13
    • 33

    Mostly sunny

    • 14
    • 21

    Showers increasing

    • 11
    • 21

    Shower or two

    • 10
    • 23

    Partly cloudy

    • 9
    • 28

    Sunny

    • 11
    • 31

    Sunny

    • 13
    • 32

    Possible shower

Today 26 Sep Newcastle

Mostly sunny day. The chance of a thunderstorm this evening. Winds north to northwesterly 15 to 20 km/h becoming light in the late afternoon then becoming southerly 25 to 35 km/h in the late evening.

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Cardiff Temperature Statistics View More

September Temperature

Newcastle (Nobbys) (13km)

  • Lowest 9 September, 2026

    8.7 °C

  • Average September

    17.5 °C

  • Highest 21 September, 2026

    32 °C

Climate (2021–2026)

Newcastle (Nobbys) (13km)

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  • Average Low 2021–2026

    15.5 °C

  • Average 2021–2026

    18.6 °C

  • Average High 2021–2026

    22.4 °C
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