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Lough Corrib — Current Water Temperature, Annual Trends and Forecast

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

Lough Corrib, Republic of Ireland
Lough Corrib, Republic of Ireland © By JoachimKohler, CC BY-SA 4.0

Current Water Temperature

20.3°C
Today
20.6°C
Yesterday
21.6°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 Lough Corrib today is 20.3°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 22 to July 23

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1621.6°C22.9°C
JUL 1721.8°C22.9°C
JUL 1822.2°C22.9°C
JUL 1922.1°C22.9°C
JUL 2021.5°C22.9°C
JUL 2120.7°C22.9°C
JUL 2220.6°C22.9°C
JUL 2320.3°C22.9°C
JUL 2422.9°C20.4°C
JUL 2522.9°C20.6°C
JUL 2622.9°C20.7°C
JUL 2722.9°C20.8°C
JUL 2822.9°C21.0°C
JUL 2922.9°C21.1°C
JUL 3022.9°C21.2°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
January2°C6°C9°C
February2°C6°C9°C
March3°C7°C10°C
April7°C11°C14°C
May11°C17°C22°C
June14°C21°C27°C
July17°C23°C28°C
August17°C22°C27°C
September13°C19°C24°C
October10°C14°C18°C
November5°C9°C12°C
December2°C6°C10°C

Lough Corrib: Water Temperature by Location

Lough Corrib: Weather Forecast

July 24

° / °
light drizzle
rain: 17% | wind:

July 25

° / °
light drizzle
rain: 35% | wind:

July 26

° / °
overcast
rain: 12% | wind:

July 27

° / °
light drizzle
rain: 44% | wind:

Location & Local Information

Lough Corrib, located in western Ireland near Galway, is the country’s second-largest lake and known for its clear, cold waters. The lake’s temperature varies widely with the seasons, typically dropping to around 4–6°C (39–43°F) in winter and rising to about 14–17°C (57–63°F) in midsummer. In exceptionally warm spells, shallow areas may reach 18–19°C (64–66°F), but the deeper parts remain cool even then. These conditions make the water refreshing and sometimes quite chilly, so swimmers often prefer late June to early September for the most comfortable experience. Sudden temperature changes and variable weather can occur, so caution and local advice are recommended before entering the water.

Swimming is allowed in Lough Corrib, but it is best done at supervised or well-known access points, as the lake is large and deep with strong currents in places. Wetsuits are common for longer swims, particularly outside the warmest months. Beyond swimming, the lake is a renowned destination for fishing, boating, and wildlife watching. The nearby city of Galway offers cultural attractions and lively pubs, while scenic sites like Cong village and Ashford Castle lie along its shores, making Lough Corrib a beautiful place to enjoy both outdoor activity and Irish heritage.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lough Corrib?
Water Temperature in Lough Corrib today is 20.3°C.
What is the water temperature in Lough Corrib during the summer months?
The water temperature in Lough Corrib in summer fluctuates in the range of 14°C - 28°C.
Is it possible to swim in Lough Corrib (Republic of Ireland) and what are the possibilities for this?
Yes — Lough Corrib can be swum in many sheltered bays, small beaches and river inlets and is popular for wild/open-water swimming, club and organised swims, but conditions vary so swimmers should pick sheltered entry points, check water quality and weather, use cold-water protection or a wetsuit and take care with boat traffic and submerged hazards.