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Lough Inagh — Current Water Temperature, Annual Trends and Forecast

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

Lough Inagh, Republic of Ireland
Lough Inagh, Republic of Ireland © By Maria Hynes, CC BY-SA 4.0

Current Water Temperature

19.8°C
Today
20.0°C
Yesterday
21.2°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 Inagh today is 19.8°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 1621.2°C22.4°C
JUL 1721.4°C22.4°C
JUL 1821.8°C22.4°C
JUL 1921.7°C22.4°C
JUL 2020.7°C22.4°C
JUL 2120.1°C22.4°C
JUL 2220.0°C22.4°C
JUL 2319.8°C22.4°C
JUL 2422.4°C19.9°C
JUL 2522.4°C20.1°C
JUL 2622.4°C20.2°C
JUL 2722.4°C20.3°C
JUL 2822.4°C20.5°C
JUL 2922.4°C20.6°C
JUL 3022.4°C20.7°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
July16°C22°C28°C
August17°C22°C27°C
September13°C19°C24°C
October10°C14°C18°C
November5°C9°C12°C
December2°C6°C10°C

Lough Inagh: Water Temperature by Location

Lough Inagh: 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 Inagh, set dramatically between the Twelve Bens and Maumturk mountain ranges in Connemara, is a long, deep, and relatively remote freshwater lake. Due to its mountain-fed water source and depth, the temperature remains quite cold throughout the year. In winter, the water is consistently chilly, likely around 6∘C to 9∘C (43∘F to 48∘F). In the warmest part of summer, one can expect the surface temperature to peak between 12∘C and 15∘C (54∘F to 59∘F), making it a truly invigorating experience.

Swimming is permitted and is a popular wild swimming location, often used by those who have been hiking the surrounding mountains for a refreshing cool-down. The water is noted for its dark, peaty colour and is generally safe, but swimmers should proceed with caution due to the depth, the remote location, and the potential presence of submerged rocks and reeds near the shore. The area is a hub for nature enthusiasts, with the iconic Kylemore Abbey and its Victorian Walled Garden, Connemara National Park, and the scenic Killary Fjord all located nearby.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lough Inagh?
Water Temperature in Lough Inagh today is 19.8°C.
What is the water temperature in Lough Inagh during the summer months?
The water temperature in Lough Inagh in summer fluctuates in the range of 14°C - 28°C.
Is it possible to swim in Lough Inagh (Republic of Ireland) and what are the possibilities for this?
Yes — Lough Inagh can be used for wild swimming, either from shore or from a boat or kayak, but the water is cold, depths and conditions change quickly, there are no lifeguards and local access or fishing rights may apply, so take appropriate safety precautions.