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
Sea temperature in Belfast: 47°F
Today's weather conditions: Outside temperature min/max: 49°F/52°F • Wind speed: 24.9mph • Waves: 4.3ft (4.9ft maximum) every 12.6 seconds
Sea temperature in Ballycastle (Causeway Coast): 47°F
Today's weather conditions: Outside temperature min/max: 50°F/52°F • Wind speed: 24.9mph • Waves: 9.5ft (4.9ft maximum) every 12.4 secondsSea temperature in Larne: 47°F
Today's weather conditions: Outside temperature min/max: 50°F/52°F • Wind speed: 26.1mph • Waves: 3.9ft (4.9ft maximum) every 12.2 secondsSea temperature in Carrickfergus: 47°F
Today's weather conditions: Outside temperature min/max: 49°F/52°F • Wind speed: 24.9mph • Waves: 4.3ft (4.9ft maximum) every 12.6 secondsSea temperature in Glenariff: 47°F
Today's weather conditions: Outside temperature min/max: 50°F/52°F • Wind speed: 26.1mph • Waves: 3.9ft (4.9ft maximum) every 12.2 seconds
County Londonderry
Sea temperature in Derry (Londonderry): 50°F
Today's weather conditions: Outside temperature min/max: 50°F/52°F • Wind speed: 24.2mph • Waves: 5.2ft (4.9ft maximum) every 13 secondsSea temperature in Castlerock: 47°F
Today's weather conditions: Outside temperature min/max: 50°F/52°F • Wind speed: 24.9mph • Waves: 9.5ft (4.9ft maximum) every 12.4 secondsSea temperature in Limavady: 47°F
Today's weather conditions: Outside temperature min/max: 50°F/52°F • Wind speed: 24.9mph • Waves: 9.5ft (4.9ft maximum) every 12.4 secondsSea temperature in Portstewart: 47°F
Today's weather conditions: Outside temperature min/max: 50°F/52°F • Wind speed: 24.9mph • Waves: 9.5ft (4.9ft maximum) every 12.4 seconds
County Down
Sea temperature in Donwpatrick: 47°F
Today's weather conditions: Outside temperature min/max: 49°F/52°F • Wind speed: 25.5mph • Waves: 5.6ft (5.9ft maximum) every 13 secondsSea temperature in Annalong: 47°F
Today's weather conditions: Outside temperature min/max: 47°F/52°F • Wind speed: 26.7mph • Waves: 3.9ft (4.9ft maximum) every 3.9 secondsSea temperature in Ballywalter: 47°F
Today's weather conditions: Outside temperature min/max: 49°F/52°F • Wind speed: 24.9mph • Waves: 4.3ft (4.9ft maximum) every 12.6 secondsSea temperature in Bangor: 47°F
Today's weather conditions: Outside temperature min/max: 49°F/52°F • Wind speed: 24.9mph • Waves: 4.3ft (4.9ft maximum) every 12.6 secondsSea temperature in Donaghadee: 47°F
Today's weather conditions: Outside temperature min/max: 49°F/52°F • Wind speed: 24.9mph • Waves: 4.3ft (4.9ft maximum) every 12.6 seconds
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.