Lough Melvin — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Melvin, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Melvin today is 19.1°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 |
|---|---|---|---|
| JUL 16 | 20.0°C | 21.4°C | |
| JUL 17 | 20.4°C | 21.4°C | |
| JUL 18 | 20.5°C | 21.4°C | |
| JUL 19 | 20.4°C | 21.4°C | |
| JUL 20 | 19.9°C | 21.4°C | |
| JUL 21 | 19.4°C | 21.4°C | |
| JUL 22 | 19.3°C | 21.4°C | |
| JUL 23 | 19.1°C | 21.4°C | |
| JUL 24 | 21.4°C | 19.2°C | |
| JUL 25 | 21.4°C | 19.3°C | |
| JUL 26 | 21.4°C | 19.4°C | |
| JUL 27 | 21.4°C | 19.6°C | |
| JUL 28 | 21.4°C | 19.7°C | |
| JUL 29 | 21.4°C | 19.8°C | |
| JUL 30 | 21.4°C | 19.9°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 | 9°C |
| March | 3°C | 7°C | 10°C |
| April | 6°C | 10°C | 13°C |
| May | 10°C | 15°C | 21°C |
| June | 13°C | 20°C | 26°C |
| July | 15°C | 21°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 | 10°C |
Lough Melvin: Water Temperature by Location
Lough Melvin: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Lough Melvin is a beautiful, large freshwater lake that famously straddles the border between County Fermanagh in Northern Ireland and County Leitrim in the Republic of Ireland. As a large inland lough, its water temperatures fluctuate significantly with the seasons. In the coldest months of winter, the temperature will typically drop to around 4∘C to 7∘C (39∘F to 45∘F), while in the height of summer, the surface layer can warm up to a much more accessible 15∘C to 18∘C (59∘F to 64∘F).
Unlike some of the protected drinking water reservoirs nearby, swimming is generally permitted in Lough Melvin and is a popular wild swimming location, particularly near public access points like the park in Garrison. While the lake is often deemed safe for swimming during the summer due to its shallow areas, users are advised to be mindful of cold water shock, particularly outside of peak summer. The lough is internationally famous for its unique species of salmonids, and the surrounding area offers other attractions such as the historic Belleek Pottery and the majestic underground world of the Marble Arch Caves Global Geopark.