Lough Sheelin — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Sheelin, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Sheelin today is 18.2°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 | 18.4°C | 22.0°C | |
| AUG 7 | 18.5°C | 22.0°C | |
| AUG 8 | 18.3°C | 22.0°C | |
| AUG 9 | 18.0°C | 22.0°C | |
| AUG 10 | 18.4°C | 22.0°C | |
| AUG 11 | 18.4°C | 22.0°C | |
| AUG 12 | 18.1°C | 22.0°C | |
| AUG 13 | 18.2°C | 22.0°C | |
| AUG 14 | 22.0°C | 18.4°C | |
| AUG 15 | 22.0°C | 18.6°C | |
| AUG 16 | 22.0°C | 18.8°C | |
| AUG 17 | 22.0°C | 19.0°C | |
| AUG 18 | 22.0°C | 19.2°C | |
| AUG 19 | 22.0°C | 19.3°C | |
| AUG 20 | 22.0°C | 19.5°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 | 17°C | 23°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 | 9°C |
Lough Sheelin: Water Temperature by Location
Lough Sheelin: Weather Forecast
August 14
August 15
August 16
August 17
August 18
August 19
Location & Local Information
Lough Sheelin lies where the counties of Cavan, Meath, and Westmeath meet, forming a wide, shallow lake known for its calm scenery and rich angling tradition. The water temperature varies through the year with Ireland’s changing seasons, averaging around 4–6°C (39–43°F) in winter and climbing to 15–18°C (59–64°F) in summer. During particularly warm spells, sheltered parts of the lake may reach 19°C (66°F), though cooler layers remain just below the surface. The shallowness of many bays means the water warms a little faster here than in deeper western lakes, making late June to early September the most comfortable period for swimming.
Swimming is permitted in Lough Sheelin, though it is generally recommended in clearly accessible areas and on calm days, as sudden weather changes can affect visibility and safety. Many swimmers prefer short dips or use wetsuits to extend their time in the water. The lake’s clean, tranquil setting attracts outdoor enthusiasts who enjoy kayaking, boating, and wildlife watching alongside anglers pursuing trout. Nearby attractions include the Loughcrew Hills with their prehistoric tombs, and the town of Granard, offering views across the surrounding countryside. Together, they make Lough Sheelin an appealing place for peaceful recreation and connection with Ireland’s rural landscape.