Lough Meelagh — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Meelagh, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Meelagh today is 18.7°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 | 18.8°C | 22.0°C | |
| AUG 7 | 18.4°C | 22.0°C | |
| AUG 8 | 18.4°C | 22.0°C | |
| AUG 9 | 18.3°C | 22.0°C | |
| AUG 10 | 18.5°C | 22.0°C | |
| AUG 11 | 18.5°C | 22.0°C | |
| AUG 12 | 18.4°C | 22.0°C | |
| AUG 13 | 18.7°C | 22.0°C | |
| AUG 14 | 22.0°C | 18.9°C | |
| AUG 15 | 22.0°C | 19.0°C | |
| AUG 16 | 22.0°C | 19.2°C | |
| AUG 17 | 22.0°C | 19.4°C | |
| AUG 18 | 22.0°C | 19.5°C | |
| AUG 19 | 22.0°C | 19.7°C | |
| AUG 20 | 22.0°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 | 14°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 | 4°C | 3°C | 9°C |
Lough Meelagh: Water Temperature by Location
Lough Meelagh: Weather Forecast
August 14
August 15
August 16
August 17
Location & Local Information
Lough Meelagh, a tranquil lake in County Roscommon, offers a serene setting that follows the typical temperature trends of Irish inland waters. While specific, consistent data is scarce, the lake's temperature fluctuates seasonally, driven by air temperature. In the depths of winter, the water is cold, generally ranging between 4∘C and 8∘C (39∘F to 46∘F). As summer progresses, the relatively shallow waters absorb heat, with temperatures peaking in July and August at an average of 16∘C to 20∘C (61∘F to 68∘F), making it quite refreshing for a summer dip.
Open-water swimming is generally permitted in the lough as there are no laws strictly prohibiting it, though it is not a designated public bathing area and lacks official lifeguard supervision or facilities. Therefore, swimming is an activity undertaken at one's own risk, and swimmers should adhere to safety best practices. The lough is notable for its numerous crannógs, or ancient artificial islands, and its surroundings are home to Kilronan Castle Estate, which sits on the lake's banks, and the wider Miner's Way & Historical Trail for walking enthusiasts.