Sully Island Weather Forecast

    • -2
    • 4

    Sunny day

    • -1
    • 4

    Sunny day

    • 3
    • 6

    Cloudy

    • 4
    • 6

    Cloudy

    • 4
    • 8

    Cloudy

    • 4
    • 7

    Cloudy

Today 4 Jan Wales

Sunny spells and wintry showers, these mainly in western areas at first but perhaps developing more widely later, falling as snow inland. Cold with frost and ice lingering in places. Maximum Temperature 5C.

Graph Plots Open in Graphs

  • Temperature Forecast Met Office

  • Temperature Real-Time

Sully Island Temperature Statistics

January Temperature

St-athan (16km)

  • Lowest 2 January, 2026

    1.8 °C

  • Average January

    5.1 °C

  • Highest 1 January, 2026

    7.6 °C

Climate (2021–Present)

St-athan (16km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    11.7 °C

  • Average High 2021–2026

    14.5 °C
Get WillyWeather+ to remove ads