Lough Beltra — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Beltra, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Beltra today is 18.5°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 | 21.1°C | 22.0°C | |
| JUL 17 | 21.3°C | 22.0°C | |
| JUL 18 | 21.7°C | 22.0°C | |
| JUL 19 | 20.3°C | 22.0°C | |
| JUL 20 | 19.6°C | 22.0°C | |
| JUL 21 | 18.9°C | 22.0°C | |
| JUL 22 | 18.9°C | 22.0°C | |
| JUL 23 | 18.5°C | 22.0°C | |
| JUL 24 | 22.0°C | 18.7°C | |
| JUL 25 | 22.0°C | 18.9°C | |
| JUL 26 | 22.0°C | 19.0°C | |
| JUL 27 | 22.0°C | 19.2°C | |
| JUL 28 | 22.0°C | 19.4°C | |
| JUL 29 | 22.0°C | 19.6°C | |
| JUL 30 | 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 | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 10°C |
| March | 3°C | 7°C | 10°C |
| April | 7°C | 11°C | 15°C |
| May | 10°C | 17°C | 22°C |
| June | 13°C | 21°C | 27°C |
| July | 15°C | 22°C | 28°C |
| August | 17°C | 22°C | 27°C |
| September | 13°C | 19°C | 24°C |
| October | 10°C | 14°C | 18°C |
| November | 5°C | 9°C | 12°C |
| December | 2°C | 6°C | 10°C |
Lough Beltra: Water Temperature by Location
Lough Beltra: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Lough Beltra in County Mayo, famous for its excellent salmon and sea trout fishing, maintains a cold temperature profile throughout the year due to its location and size. As an Irish freshwater lough, its surface temperature varies seasonally. In the peak of summer, typically August, the water can reach its warmest range, likely between 15∘C and 18∘C (59∘F to 64∘F), while winter temperatures will plummet to between 5∘C and 9∘C (41∘F to 48∘F), requiring caution or a wetsuit for those venturing in.
Swimming is not officially prohibited, aligning with the practice of wild swimming across Ireland, but Lough Beltra is not designated as a bathing area. The lack of public facilities and the focus on angling and fish conservation means swimming is a less common activity here, and safety should be prioritized due to the cold water and the deep nature of the lough. For visitors, the area is an ideal base for exploring the Wild Atlantic Way and the Great Western Greenway, a popular off-road cycling and walking trail that starts nearby in the town of Newport.