River Moy — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the River Moy, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the River Moy today is 15.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 | 15.9°C | 18.0°C | |
| AUG 7 | 15.5°C | 18.0°C | |
| AUG 8 | 15.5°C | 18.0°C | |
| AUG 9 | 15.7°C | 18.0°C | |
| AUG 10 | 15.8°C | 18.0°C | |
| AUG 11 | 15.5°C | 18.0°C | |
| AUG 12 | 15.6°C | 18.0°C | |
| AUG 13 | 15.9°C | 18.0°C | |
| AUG 14 | 18.0°C | 16.0°C | |
| AUG 15 | 18.0°C | 16.1°C | |
| AUG 16 | 18.0°C | 16.2°C | |
| AUG 17 | 18.0°C | 16.3°C | |
| AUG 18 | 18.0°C | 16.4°C | |
| AUG 19 | 18.0°C | 16.5°C | |
| AUG 20 | 18.0°C | 16.6°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 | 0°C | 4°C | 7°C |
| February | 0°C | 4°C | 8°C |
| March | 2°C | 6°C | 9°C |
| April | 5°C | 8°C | 12°C |
| May | 9°C | 13°C | 18°C |
| June | 12°C | 17°C | 22°C |
| July | 14°C | 19°C | 23°C |
| August | 14°C | 18°C | 23°C |
| September | 11°C | 16°C | 20°C |
| October | 8°C | 11°C | 14°C |
| November | 4°C | 7°C | 10°C |
| December | 4°C | 3°C | 9°C |
River Moy: Water Temperature by Location
River Moy: Weather Forecast
August 14
August 15
August 16
August 17
Location & Local Information
Source:
• location Ox Mountains, County Sligo
Mouth:
• location Atlantic Ocean via Killala Bay
Length 110 km (68 mi)
The River Moy flows through Counties Mayo and Sligo in western Ireland before entering the Atlantic Ocean at Ballina. Its water temperature reflects the cool, maritime climate of the west coast. In winter, the river typically remains between 4–6°C (39–43°F), while in summer it warms to around 14–17°C (57–63°F). On calm, sunny days in July or August, sheltered areas and shallow stretches can briefly reach 18°C (64°F), though the deeper and faster-flowing sections stay cooler. Because of these fresh but moderate temperatures, the most suitable time for swimming is from late June to early September, when both the air and water offer the mildest conditions.
Swimming is allowed in the River Moy, though it is better known for its salmon fishing than for bathing. The river’s clean waters and scenic banks attract occasional swimmers and open-water enthusiasts, particularly near calmer stretches outside Ballina. As with all Irish rivers, caution is advised, especially after rain when currents can strengthen. Wetsuits are often worn to stay comfortable in the cool water. Beyond swimming, the Moy Valley is rich in nature and heritage, offering walking routes, angling, and views of the Ox Mountains. Nearby attractions include Ballina’s Cathedral of the Immaculate Conception and the beautiful beaches of Enniscrone along the Atlantic coast.