Lough Cullin — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Cullin, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Cullin 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 |
|---|---|---|---|
| JUL 16 | 20.2°C | 21.9°C | |
| JUL 17 | 20.6°C | 21.9°C | |
| JUL 18 | 20.8°C | 21.9°C | |
| JUL 19 | 19.6°C | 21.9°C | |
| JUL 20 | 19.0°C | 21.9°C | |
| JUL 21 | 18.7°C | 21.9°C | |
| JUL 22 | 18.6°C | 21.9°C | |
| JUL 23 | 18.4°C | 21.9°C | |
| JUL 24 | 21.9°C | 18.6°C | |
| JUL 25 | 21.9°C | 18.8°C | |
| JUL 26 | 21.9°C | 18.9°C | |
| JUL 27 | 21.9°C | 19.1°C | |
| JUL 28 | 21.9°C | 19.3°C | |
| JUL 29 | 21.9°C | 19.5°C | |
| JUL 30 | 21.9°C | 19.6°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 | 14°C |
| May | 11°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 | 5°C | 5°C | 10°C |
Lough Cullin: Water Temperature by Location
Lough Cullin: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Lough Cullin in County Mayo is part of a freshwater complex with the larger Lough Conn, to which it is joined by a narrow channel at Pontoon. The lake water temperature follows the general trend for Irish loughs. It is chilly during winter, typically ranging from 5∘C to 8∘C (41∘F to 46∘F), with the surface layer warming up in the summer months to a more accessible 14∘C to 18∘C (57∘F to 64∘F) on average.
Swimming is generally permitted and enjoyed as a form of wild swimming in Lough Cullin, as it is a natural lough and not a drinking water reservoir with prohibitive regulations. However, swimmers should exercise caution due to the large, deep nature of the water and the lack of official lifeguards or designated bathing areas. The lake and its surrounds are internationally renowned for brown trout and salmon fishing. Other nearby points of interest include the Foxford Woollen Mills in the nearby town of Foxford and the National Museum of Ireland – Country Life at Turlough House.