Boyle River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Boyle River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Boyle River today is 18.1°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 |
|---|---|---|---|
| AUG 6 | 18.0°C | 18.0°C | |
| AUG 7 | 17.5°C | 18.0°C | |
| AUG 8 | 17.5°C | 18.0°C | |
| AUG 9 | 17.6°C | 18.0°C | |
| AUG 10 | 17.6°C | 18.0°C | |
| AUG 11 | 17.5°C | 18.0°C | |
| AUG 12 | 17.5°C | 18.0°C | |
| AUG 13 | 18.1°C | 18.0°C | |
| AUG 14 | 18.0°C | 18.1°C | |
| AUG 15 | 18.0°C | 18.1°C | |
| AUG 16 | 18.0°C | 18.1°C | |
| AUG 17 | 18.0°C | 18.1°C | |
| AUG 18 | 18.0°C | 18.1°C | |
| AUG 19 | 18.0°C | 18.1°C | |
| AUG 20 | 18.0°C | 18.1°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 | 8°C |
| March | 2°C | 6°C | 9°C |
| April | 6°C | 9°C | 12°C |
| May | 9°C | 14°C | 18°C |
| June | 13°C | 19°C | 23°C |
| July | 15°C | 19°C | 24°C |
| August | 14°C | 18°C | 23°C |
| September | 11°C | 16°C | 20°C |
| October | 9°C | 12°C | 15°C |
| November | 4°C | 7°C | 10°C |
| December | 1°C | 5°C | 8°C |
Boyle River: Water Temperature by Location
Boyle River: Weather Forecast
August 14
August 15
August 16
August 17
Location & Local Information
Source:
• location Lough Gara
Mouth River Shannon
• location Lough Eidin
The Boyle River in County Roscommon, like most inland Irish waterways, experiences significant seasonal temperature shifts. In the winter months, from roughly December to February, the water temperature is cold, typically ranging from 7∘C to 8∘C (45∘F to 46∘F). During the peak summer, the river warms up somewhat, with temperatures generally reaching 14∘C to 16∘C (57∘F to 61∘F), which remains cold for casual swimming.
While not designated as a primary bathing spot, swimming is legally permissible in most parts of the river, provided no local restrictions or safety warnings are in place. The main use of the river is for kayaking, canoeing, and angling for brown trout. For safer and more popular swimming opportunities, locals generally head to the nearby Lough Key, which has designated and maintained swimming areas like Doon Shore. Other attractions include the impressive ruins of Boyle Abbey and the historic King House.