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 18.1°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 | 18.6°C | 22.0°C | |
| AUG 7 | 18.6°C | 22.0°C | |
| AUG 8 | 18.1°C | 22.0°C | |
| AUG 9 | 17.9°C | 22.0°C | |
| AUG 10 | 18.3°C | 22.0°C | |
| AUG 11 | 18.3°C | 22.0°C | |
| AUG 12 | 18.0°C | 22.0°C | |
| AUG 13 | 18.1°C | 22.0°C | |
| AUG 14 | 22.0°C | 18.3°C | |
| AUG 15 | 22.0°C | 18.5°C | |
| AUG 16 | 22.0°C | 18.7°C | |
| AUG 17 | 22.0°C | 18.9°C | |
| AUG 18 | 22.0°C | 19.1°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 | 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
August 14
August 15
August 16
August 17
August 18
August 19
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.