Lough Ree — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Ree, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Ree today is 18.4°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 6 | 18.2°C | 22.0°C | |
| AUG 7 | 18.1°C | 22.0°C | |
| AUG 8 | 18.0°C | 22.0°C | |
| AUG 9 | 18.0°C | 22.0°C | |
| AUG 10 | 18.2°C | 22.0°C | |
| AUG 11 | 18.3°C | 22.0°C | |
| AUG 12 | 18.2°C | 22.0°C | |
| AUG 13 | 18.4°C | 22.0°C | |
| AUG 14 | 22.0°C | 18.6°C | |
| AUG 15 | 22.0°C | 18.8°C | |
| AUG 16 | 22.0°C | 18.9°C | |
| AUG 17 | 22.0°C | 19.1°C | |
| AUG 18 | 22.0°C | 19.3°C | |
| AUG 19 | 22.0°C | 19.5°C | |
| AUG 20 | 22.0°C | 19.7°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 |
|---|---|---|---|
| January | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 3°C | 7°C | 10°C |
| April | 7°C | 11°C | 14°C |
| May | 11°C | 17°C | 22°C |
| June | 14°C | 21°C | 27°C |
| July | 16°C | 22°C | 28°C |
| August | 17°C | 22°C | 27°C |
| September | 13°C | 19°C | 24°C |
| October | 10°C | 14°C | 18°C |
| November | 5°C | 9°C | 12°C |
| December | 2°C | 6°C | 10°C |
Lough Ree: Water Temperature by Location
Lough Ree: Weather Forecast
August 14
August 15
August 16
August 17
Location & Local Information
Lough Ree, situated in the heart of Ireland along the River Shannon, is one of the country’s largest inland lakes and a popular spot for recreation. Its water temperature reflects Ireland’s mild but variable climate, typically ranging from about 4–6°C (39–43°F) in winter to 15–18°C (59–64°F) in summer. During particularly warm spells, surface waters in sheltered bays may briefly reach 19°C (66°F), though cooler layers persist below. Because of these moderate but often brisk temperatures, most swimming takes place between late May and early September, when the water is at its most comfortable and daylight hours are long.
Swimming is permitted in Lough Ree, and several designated bathing areas, such as those near Ballyleague and Athlone, are regularly monitored for safety and water quality. The lake’s size and open stretches mean that swimmers should be mindful of winds and currents, and wearing a wetsuit can extend swimming comfort. Lough Ree is also a favorite for boating, kayaking, and angling, offering wide scenic views and peaceful islands to explore. Nearby, visitors can enjoy the historic town of Athlone with its medieval castle and riverside walks, making the area both a natural and cultural highlight in Ireland’s midlands.