River Roe — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the River Roe, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the River Roe today is 17.3°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 |
|---|---|---|---|
| JUL 16 | 18.7°C | 18.0°C | |
| JUL 17 | 18.7°C | 18.0°C | |
| JUL 18 | 18.8°C | 18.0°C | |
| JUL 19 | 18.7°C | 18.0°C | |
| JUL 20 | 18.7°C | 18.0°C | |
| JUL 21 | 17.6°C | 18.0°C | |
| JUL 22 | 17.6°C | 18.0°C | |
| JUL 23 | 17.4°C | 18.0°C | |
| JUL 24 | 18.0°C | 17.3°C | |
| JUL 25 | 18.0°C | 17.4°C | |
| JUL 26 | 18.0°C | 17.4°C | |
| JUL 27 | 18.0°C | 17.4°C | |
| JUL 28 | 18.0°C | 17.5°C | |
| JUL 29 | 18.0°C | 17.5°C | |
| JUL 30 | 18.0°C | 17.5°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 | 7°C |
| March | 2°C | 6°C | 9°C |
| April | 5°C | 9°C | 11°C |
| May | 9°C | 14°C | 18°C |
| June | 11°C | 17°C | 22°C |
| July | 14°C | 18°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 | 8°C | 12°C |
| December | 0°C | 4°C | 8°C |
River Roe: Water Temperature by Location
River Roe: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
The River Roe, flowing through County Londonderry in Northern Ireland, begins in the Sperrin Mountains and winds northward through Limavady before reaching Lough Foyle and the Atlantic coast. Its temperature reflects the cool maritime climate of the northwest, influenced by both mountain streams and coastal air. In winter, the Roe typically stays between 3 and 5°C (37–41°F), remaining cold and fast-flowing. By spring, it gradually warms to around 8–10°C (46–50°F). During midsummer—particularly in July and August—the water can reach 15–17°C (59–63°F) in calmer, lower sections, while upland areas remain noticeably cooler. As autumn approaches, the river cools again to about 9–11°C (48–52°F), maintaining a clear, refreshing flow throughout most of the year.
Swimming in the River Roe is allowed, and its upper and middle reaches attract some wild swimmers during the warmer months. The water quality is generally good, though the current can be strong after heavy rain. Sheltered pools and shallower bends provide safer entry points for swimming or paddling. Beyond the water, the Roe Valley is known for its natural beauty, with forested trails, waterfalls, and picnic areas. Nearby attractions include Roe Valley Country Park, the town of Limavady, and the dramatic coastal scenery leading toward Benone Strand and the Causeway Coast.