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 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 | 18.6°C | 22.0°C | |
| AUG 7 | 18.4°C | 22.0°C | |
| AUG 8 | 18.3°C | 22.0°C | |
| AUG 9 | 18.3°C | 22.0°C | |
| AUG 10 | 18.5°C | 22.0°C | |
| AUG 11 | 18.4°C | 22.0°C | |
| AUG 12 | 18.4°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 | 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
August 14
August 15
August 16
August 17
August 18
August 19
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.