Lough Gill — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lough Gill, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lough Gill today is 18.3°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 | 18.3°C | 22.0°C | |
| AUG 7 | 17.9°C | 22.0°C | |
| AUG 8 | 17.9°C | 22.0°C | |
| AUG 9 | 18.0°C | 22.0°C | |
| AUG 10 | 18.1°C | 22.0°C | |
| AUG 11 | 18.1°C | 22.0°C | |
| AUG 12 | 18.1°C | 22.0°C | |
| AUG 13 | 18.3°C | 22.0°C | |
| AUG 14 | 22.0°C | 18.5°C | |
| AUG 15 | 22.0°C | 18.7°C | |
| AUG 16 | 22.0°C | 18.9°C | |
| AUG 17 | 22.0°C | 19.0°C | |
| AUG 18 | 22.0°C | 19.2°C | |
| AUG 19 | 22.0°C | 19.4°C | |
| AUG 20 | 22.0°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 | 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 | 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 | 5°C | 3°C | 10°C |
Lough Gill: Water Temperature by Location
Lough Gill: Weather Forecast
August 14
August 15
August 16
August 17
Location & Local Information
Lough Gill, located east of Sligo town in Ireland’s northwest, is a scenic freshwater lake surrounded by forested hills and small islands, including the famous Isle of Innisfree. The lake’s water remains cool year-round due to its depth and sheltered setting. Average winter temperatures hover around 5–7°C (41–45°F), while in summer they typically rise to 14–17°C (57–63°F). On calm, sunny days, shallow bays may briefly reach 18°C (64°F), though the deeper areas stay colder. The lake’s clear but brisk water reflects the influence of Ireland’s maritime climate, making midsummer the most comfortable time for swimming, particularly in late June through August.
Swimming is allowed in Lough Gill, and it is enjoyed by both locals and visitors who appreciate the lake’s quiet surroundings. Swimmers usually choose access points near Parke’s Castle or Hazelwood, where the shoreline is safe and easy to reach. The lake is also popular for kayaking and fishing, and its unspoiled character attracts those seeking calm nature experiences. Nearby attractions include the town of Sligo with its cultural and literary heritage, and the scenic Glencar Waterfall just to the northeast. Lough Gill’s blend of natural beauty, refreshing water, and peaceful atmosphere makes it one of the most charming lakes in Ireland.