Lough Macnean Upper — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Macnean Upper, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Macnean Upper today is 20.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 | 21.9°C | |
| JUL 17 | 21.5°C | 21.9°C | |
| JUL 18 | 21.5°C | 21.9°C | |
| JUL 19 | 21.5°C | 21.9°C | |
| JUL 20 | 21.2°C | 21.9°C | |
| JUL 21 | 20.6°C | 21.9°C | |
| JUL 22 | 20.5°C | 21.9°C | |
| JUL 23 | 20.5°C | 21.9°C | |
| JUL 24 | 21.9°C | 20.2°C | |
| JUL 25 | 21.9°C | 20.3°C | |
| JUL 26 | 21.9°C | 20.4°C | |
| JUL 27 | 21.9°C | 20.5°C | |
| JUL 28 | 21.9°C | 20.6°C | |
| JUL 29 | 21.9°C | 20.6°C | |
| JUL 30 | 21.9°C | 20.7°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 | 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 |
Lough Macnean Upper: Water Temperature by Location
Lough Macnean Upper: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Lough Macnean Upper, a beautiful freshwater lough split between County Fermanagh and the Republic of Ireland, experiences the typical cool water temperatures of an Irish lake. While specific measurements are often localized, the seasonal average would likely range from a cold 7∘C to 9∘C (45∘F to 48∘F) in the winter months. During the height of summer, the surface water can warm up, sometimes reaching between 15∘C and 18∘C (59∘F and 64∘F), making it more tolerable for seasonal outdoor bathing.
Swimming in Lough Macnean Upper is generally permitted as a form of wild or open water swimming, unlike some managed urban reservoirs, but bathers must exercise caution as it is unsupervised. The area is renowned for its natural beauty and is a popular spot for both local swimming groups and activity centres which offer organized 'lake swimming'. The lake is located within the picturesque Cuilcagh Lakelands UNESCO Global Geopark, offering easy access to other spectacular sights like the Marble Arch Caves and the Cuilcagh Boardwalk Trail.