Belfast Harbour Entrance Weather Forecast

    • 8
    • 10

    Cloudy

    • 7
    • 10

    Cloudy

    • 6
    • 9

    Overcast

    • 5
    • 8

    Overcast

    • 4
    • 7

    Cloudy

    • 4
    • 7

    Sunny day

Today 21 Dec Northern Ireland

Brighter spells for the morning and only the odd scattered shower. Cloud thickening from the east during the afternoon, with patchy rain spreading westwards during the evening and night. Maximum Temperature 10C.

Graph Plots Open in Graphs

  • Temperature Forecast Met Office

  • Temperature Real-Time

Belfast Harbour Entrance Temperature Statistics

December Temperature

Aldergrove (22km)

  • Lowest 16 December, 2025

    0.3 °C

  • Average December

    7.4 °C

  • Highest 9 December, 2025

    14.6 °C

Climate (2020–Present)

Aldergrove (22km)

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

  • Average Low 2020–2025

    7.4 °C

  • Average 2020–2025

    10.3 °C

  • Average High 2020–2025

    13.3 °C
Get WillyWeather+ to remove ads