Sea temperature in Northern Ireland sea temperature in real time, 7-day forecast and historical data

Do you want to go to the beach to swim in Northern Ireland today? Check if the sea temperature is pleasant with our data, updated daily, in real time, and our weather forecast for the next few days, by city in Northern Ireland.

Sea temperature in Northern Ireland today

On the map below, find the water temperature measured today for different cities in Northern Ireland.

Water temperature in Northern Ireland by city

Below, find the current sea temperature and weather conditions in several coastal cities in Northern Ireland.

Direct access: County Antrim | County Londonderry | County Down

County Antrim

  • Météo actuelle

    Sea temperature in Belfast: 54°F

    Today's weather conditions: Outside temperature min/max: 52°F/58°F • Wind speed: 8.7mph • Waves: 2.6ft (1.6ft maximum) every 15.4 seconds

    Today's sea temperature in Belfast

  • Météo actuelle

    Sea temperature in Ballycastle (Causeway Coast): 58°F

    Today's weather conditions: Outside temperature min/max: 50°F/58°F • Wind speed: 8.1mph • Waves: 1.3ft (1.3ft maximum) every 12.6 seconds

    Today's sea temperature in Ballycastle (Causeway Coast)

  • Météo actuelle

    Sea temperature in Larne: 52°F

    Today's weather conditions: Outside temperature min/max: 52°F/58°F • Wind speed: 7.5mph • Waves: 2ft (2ft maximum) every 7.4 seconds

    Today's sea temperature in Larne

  • Météo actuelle

    Sea temperature in Carrickfergus: 54°F

    Today's weather conditions: Outside temperature min/max: 52°F/58°F • Wind speed: 8.7mph • Waves: 2.6ft (1.6ft maximum) every 15.4 seconds

    Today's sea temperature in Carrickfergus

  • Météo actuelle

    Sea temperature in Glenariff: 52°F

    Today's weather conditions: Outside temperature min/max: 52°F/58°F • Wind speed: 7.5mph • Waves: 2ft (2ft maximum) every 7.4 seconds

    Today's sea temperature in Glenariff

County Londonderry

  • Météo actuelle

    Sea temperature in Derry (Londonderry): 52°F

    Today's weather conditions: Outside temperature min/max: 50°F/58°F • Wind speed: 6.2mph • Waves: 1.3ft (1.6ft maximum) every 12.9 seconds

    Today's sea temperature in Derry (Londonderry)

  • Météo actuelle

    Sea temperature in Castlerock: 58°F

    Today's weather conditions: Outside temperature min/max: 50°F/58°F • Wind speed: 8.1mph • Waves: 1.3ft (1.3ft maximum) every 12.6 seconds

    Today's sea temperature in Castlerock

  • Météo actuelle

    Sea temperature in Limavady: 58°F

    Today's weather conditions: Outside temperature min/max: 50°F/58°F • Wind speed: 8.1mph • Waves: 1.3ft (1.3ft maximum) every 12.6 seconds

    Today's sea temperature in Limavady

  • Météo actuelle

    Sea temperature in Portstewart: 58°F

    Today's weather conditions: Outside temperature min/max: 50°F/58°F • Wind speed: 8.1mph • Waves: 1.3ft (1.3ft maximum) every 12.6 seconds

    Today's sea temperature in Portstewart

County Down

  • Météo actuelle

    Sea temperature in Donwpatrick: 52°F

    Today's weather conditions: Outside temperature min/max: 54°F/58°F • Wind speed: 10.6mph • Waves: 3.6ft (2.3ft maximum) every 15.4 seconds

    Today's sea temperature in Donwpatrick

  • Météo actuelle

    Sea temperature in Annalong: 52°F

    Today's weather conditions: Outside temperature min/max: 54°F/56°F • Wind speed: 5.6mph • Waves: 2.6ft (2ft maximum) every 15.6 seconds

    Today's sea temperature in Annalong

  • Météo actuelle

    Sea temperature in Ballywalter: 54°F

    Today's weather conditions: Outside temperature min/max: 52°F/58°F • Wind speed: 8.7mph • Waves: 2.6ft (1.6ft maximum) every 15.4 seconds

    Today's sea temperature in Ballywalter

  • Météo actuelle

    Sea temperature in Bangor: 54°F

    Today's weather conditions: Outside temperature min/max: 52°F/58°F • Wind speed: 8.7mph • Waves: 2.6ft (1.6ft maximum) every 15.4 seconds

    Today's sea temperature in Bangor

  • Météo actuelle

    Sea temperature in Donaghadee: 54°F

    Today's weather conditions: Outside temperature min/max: 52°F/58°F • Wind speed: 8.7mph • Waves: 2.6ft (1.6ft maximum) every 15.4 seconds

    Today's sea temperature in Donaghadee

Water temperature in Northern Ireland by month

Below, find the average temperature variation of the sea in Northern Ireland for the cities of: Belfast, Ballycastle (Causeway Coast), Derry (Londonderry), Donwpatrick and Larne.

Warning:

The information provided on this page regarding the sea temperature in Northern Ireland is for informational purposes only. It is the surface temperature of the sea measured by satellite, based on data available at the time of consultation. These data may vary depending on several factors such as local weather conditions, tides, and other variables. We therefore recommend consulting additional local sources for updated information before making any decisions based on this data.

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