River Nith — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the River Nith, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the River Nith today is 17.6°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 | 17.9°C | 17.0°C | |
| JUL 17 | 17.7°C | 17.0°C | |
| JUL 18 | 17.8°C | 17.0°C | |
| JUL 19 | 17.7°C | 17.0°C | |
| JUL 20 | 17.7°C | 17.0°C | |
| JUL 21 | 17.7°C | 17.0°C | |
| JUL 22 | 17.6°C | 17.0°C | |
| JUL 23 | 17.6°C | 17.0°C | |
| JUL 24 | 17.0°C | 17.6°C | |
| JUL 25 | 17.0°C | 17.5°C | |
| JUL 26 | 17.0°C | 17.5°C | |
| JUL 27 | 17.0°C | 17.5°C | |
| JUL 28 | 17.0°C | 17.5°C | |
| JUL 29 | 17.0°C | 17.4°C | |
| JUL 30 | 17.0°C | 17.4°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 | 3°C | 6°C |
| February | 0°C | 3°C | 6°C |
| March | 1°C | 5°C | 8°C |
| April | 4°C | 7°C | 11°C |
| May | 8°C | 12°C | 17°C |
| June | 12°C | 17°C | 21°C |
| July | 12°C | 17°C | 21°C |
| August | 12°C | 17°C | 21°C |
| September | 9°C | 14°C | 18°C |
| October | 6°C | 9°C | 12°C |
| November | 4°C | 8°C | 10°C |
| December | 0°C | 4°C | 7°C |
River Nith: Water Temperature by Location
River Nith: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Source:
• location Enoch Hill
• coordinates 55.328°N 4.284°W
Mouth:
• location Solway Firth
Length 70 mi (110 km)
The River Nith, flowing through Dumfries and Galloway in southwest Scotland, is one of the country’s most scenic lowland rivers. Rising in the Carsphairn Hills and winding through wooded valleys before reaching the Solway Firth, the Nith reflects the cool, temperate maritime climate of the region. In winter, the river’s water temperature usually remains between 3 and 5°C (37–41°F), staying cold and swift after rainfall. By spring, it gradually warms to around 8–10°C (46–50°F). During midsummer—particularly in July and August—the Nith can reach 14–16°C (57–61°F) in calmer stretches, though shaded and upland areas remain cooler. As autumn approaches, the water cools again to around 9–11°C (48–52°F), keeping a refreshing feel through much of the year.
Swimming in the River Nith is possible and increasingly enjoyed by wild swimmers, especially in tranquil sections near Dumfries and Thornhill. The water is clean and scenic, though swimmers should always be aware of variable currents and deeper pools formed by the river’s natural meanders. On warm days, its clear flow offers pleasant conditions for short dips or longer swims. The Nith Valley also provides excellent opportunities for fishing, canoeing, and riverside walks, with nearby attractions such as Drumlanrig Castle, Caerlaverock National Nature Reserve, and the Dumfries countryside adding to its appeal.