River Suir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the River Suir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the River Suir today is 18.2°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 | 19.1°C | 18.0°C | |
| JUL 17 | 19.1°C | 18.0°C | |
| JUL 18 | 18.9°C | 18.0°C | |
| JUL 19 | 18.9°C | 18.0°C | |
| JUL 20 | 18.7°C | 18.0°C | |
| JUL 21 | 18.7°C | 18.0°C | |
| JUL 22 | 18.4°C | 18.0°C | |
| JUL 23 | 18.3°C | 18.0°C | |
| JUL 24 | 18.0°C | 18.2°C | |
| JUL 25 | 18.0°C | 18.2°C | |
| JUL 26 | 18.0°C | 18.2°C | |
| JUL 27 | 18.0°C | 18.2°C | |
| JUL 28 | 18.0°C | 18.2°C | |
| JUL 29 | 18.0°C | 18.1°C | |
| JUL 30 | 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 | 0°C | 4°C | 8°C |
| February | 0°C | 5°C | 10°C |
| March | 2°C | 6°C | 9°C |
| April | 6°C | 9°C | 12°C |
| May | 9°C | 15°C | 19°C |
| June | 12°C | 18°C | 22°C |
| July | 14°C | 18°C | 23°C |
| August | 14°C | 18°C | 23°C |
| September | 10°C | 15°C | 19°C |
| October | 8°C | 11°C | 14°C |
| November | 3°C | 7°C | 11°C |
| December | 4°C | 7°C | 10°C |
River Suir: Water Temperature by Location
River Suir: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Source Devil's Bit Mountain
• location Templemore, County Tipperary
• coordinates 52.821°N 7.914°W
• elevation 480 m (1,570 ft)
Mouth Waterford Harbour
• location Waterford
• coordinates 52.11°N 6.56°W
Length 185 km (115 mi)
The River Suir, one of Ireland's longest rivers, flows through counties Tipperary, Waterford, and Kilkenny. Its water temperature experiences significant seasonal variation typical of Irish inland waterways. In the winter months, the water is cold, frequently falling into the range of 5∘C to 9∘C (41∘F to 48∘F). By mid-summer, the temperature warms considerably, making for a less severe dip, typically ranging between 15∘C and 18∘C (59∘F to 64∘F).
While swimming is generally not regulated or supervised in much of the main flow, and can be dangerous, it is a popular spot for informal wild swimming, particularly around towns like Carrick-on-Suir, where there are established, traditional entry points. However, the river's high flow rate and the presence of strong tides and currents in its lower, tidal reaches near Waterford city pose significant risks, meaning swimming there is strongly discouraged. The river and its banks are better utilized for other recreational activities, such as kayaking and walking along the Suir Blueway and visiting nearby historical sites like Cahir Castle and Ormond Castle.