Muckno Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Muckno Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Muckno Lake today is 19.3°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 |
|---|---|---|---|
| JUL 16 | 21.0°C | 21.8°C | |
| JUL 17 | 21.0°C | 21.8°C | |
| JUL 18 | 21.3°C | 21.8°C | |
| JUL 19 | 21.1°C | 21.8°C | |
| JUL 20 | 21.1°C | 21.8°C | |
| JUL 21 | 20.0°C | 21.8°C | |
| JUL 22 | 20.0°C | 21.8°C | |
| JUL 23 | 19.3°C | 21.8°C | |
| JUL 24 | 21.8°C | 19.4°C | |
| JUL 25 | 21.8°C | 19.6°C | |
| JUL 26 | 21.8°C | 19.7°C | |
| JUL 27 | 21.8°C | 19.8°C | |
| JUL 28 | 21.8°C | 19.9°C | |
| JUL 29 | 21.8°C | 20.1°C | |
| JUL 30 | 21.8°C | 20.2°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 |
|---|---|---|---|
| January | 1°C | 5°C | 8°C |
| February | 1°C | 5°C | 8°C |
| March | 3°C | 7°C | 10°C |
| April | 6°C | 10°C | 13°C |
| May | 10°C | 15°C | 21°C |
| June | 14°C | 20°C | 26°C |
| July | 16°C | 22°C | 27°C |
| August | 17°C | 22°C | 27°C |
| September | 13°C | 19°C | 24°C |
| October | 9°C | 13°C | 17°C |
| November | 5°C | 9°C | 12°C |
| December | 3°C | 6°C | 9°C |
Muckno Lake: Water Temperature by Location
Muckno Lake: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Muckno Lake, also known as Lough Muckno, lies beside the town of Castleblayney in County Monaghan and is the largest lake in the county. It is a deep, clear freshwater lake that reflects the mild, changeable climate of Ireland’s northeast. In winter, water temperatures typically range from 4–6°C (39–43°F), remaining quite cold and steady due to the lake’s depth. During the summer months, surface temperatures generally rise to around 15–18°C (59–64°F), and in calm, sunny conditions, sheltered bays may reach about 19°C (66°F). The warmest and most comfortable period for swimming is between late June and early September, when both air and water temperatures reach their seasonal peak.
Swimming is allowed in Muckno Lake, and the area around Lough Muckno Leisure Park provides safe and convenient access for swimmers. The lake’s clean water, gentle slopes, and scenic setting make it a pleasant location for open-water swimming and short dips during warmer months. Wetsuits are often recommended outside mid-summer, as the temperature drops quickly below the surface. Beyond swimming, Muckno Lake is well known for angling, boating, and nature walks. Nearby Castleblayney offers restaurants, parks, and cultural events, while the surrounding drumlin landscape provides peaceful countryside views and outdoor recreation opportunities.