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Carlingford Lough — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Carlingford Lough, trends, monthly ranges and the forecast for the coming days.

Muckno Lake, Republic of Ireland
Muckno Lake, Republic of Ireland © By Shane Killen, CC BY-SA 2.0

Current Water Temperature

17.3°C
Today
17.5°C
Yesterday
17.4°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Carlingford Lough today is 17.3°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

From June 1 to July 2

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2517.4°C20.3°C
JUN 2617.9°C20.3°C
JUN 2718.5°C20.3°C
JUN 2818.6°C20.3°C
JUN 2918.6°C20.3°C
JUN 3018.5°C20.3°C
JUL 117.5°C22.0°C
JUL 217.5°C22.0°C
JUL 322.0°C17.5°C
JUL 422.0°C17.8°C
JUL 522.0°C18.0°C
JUL 622.0°C18.2°C
JUL 722.0°C18.5°C
JUL 822.0°C18.7°C
JUL 922.0°C18.9°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January1°C5°C8°C
February1°C5°C9°C
March3°C7°C10°C
April6°C10°C13°C
May10°C15°C21°C
June14°C20°C26°C
July17°C22°C27°C
August17°C22°C27°C
September13°C19°C24°C
October9°C13°C17°C
November5°C9°C12°C
December3°C6°C9°C

Carlingford Lough: Water Temperature by Location

Carlingford Lough: Weather Forecast

July 3

° / °
light drizzle
rain: 18% | wind:

July 4

° / °
light drizzle
rain: 25% | wind:

July 5

° / °
overcast
rain: 16% | wind:

July 6

° / °
overcast
rain: 10% | wind:

Location & Local Information

Carlingford Lough, a glacial fjord that forms a scenic border between the Republic of Ireland and Northern Ireland, offers a bracing wild swimming experience typical of the northern Irish Sea. Water temperatures exhibit a significant seasonal range. During the winter months, temperatures are cold, averaging from a chilly 7∘C to 10∘C (45∘F to 50∘F). The warmest period is late summer, typically August and September, when the water can peak around 14∘C to 17∘C (57∘F to 63∘F).

Swimming is generally allowed in the lough, with several popular and safe spots along the coastline, such as Templetown Beach, which often achieves the Blue Flag status indicating excellent water quality and amenities. The area is frequented by open water swimmers and adventure centers, who promote water sports and activities. The medieval village of Carlingford, overlooked by the dramatic Cooley Mountains and home to King John's Castle, offers a rich historical backdrop to any visitor exploring the lough's shores.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Carlingford Lough?
Water Temperature in Carlingford Lough today is 17.3°C.
What is the water temperature in Carlingford Lough during the summer months?
The water temperature in Carlingford Lough in summer fluctuates in the range of 14°C - 27°C.
Is it possible to swim in Carlingford Lough (Republic of Ireland) and what are the possibilities for this?
Yes — Carlingford Lough is used for swimming: you can swim from beaches, coves and piers or join local open‑water clubs and organised guided swims and events in its sheltered, scenic waters, but you should check tides and currents, local water quality and lifeguard cover, watch for boat traffic, and use appropriate safety gear such as a wetsuit or visibility buoy.