Water of Leith River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Water of Leith River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Water of Leith River today is 12.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 |
|---|---|---|---|
| SEP 10 | 13.6°C | 14.0°C | |
| SEP 12 | 13.3°C | 14.0°C | |
| SEP 13 | 12.6°C | 14.0°C | |
| SEP 14 | 12.9°C | 14.0°C | |
| SEP 15 | 12.6°C | 14.0°C | |
| SEP 16 | 12.9°C | 14.0°C | |
| SEP 17 | 12.6°C | 14.0°C | |
| SEP 18 | 14.0°C | 12.8°C | |
| SEP 19 | 14.0°C | 12.8°C | |
| SEP 20 | 14.0°C | 12.9°C | |
| SEP 21 | 14.0°C | 13.0°C | |
| SEP 22 | 14.0°C | 13.0°C | |
| SEP 23 | 14.0°C | 13.1°C | |
| SEP 24 | 14.0°C | 13.2°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 | 8°C | 10°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 | 7°C | 10°C |
| December | 0°C | 4°C | 7°C |
Water of Leith River: Water Temperature by Location
Water of Leith River: Weather Forecast
September 18
September 19
September 20
September 21
September 22
Location & Local Information
Source:
• location Millstone Rig, West Lothian
• coordinates 55°59′N 3°10′W
Mouth:
• location Leith Docks, Edinburgh
• coordinates 55.979399°N 3.170638°W
• elevation 0 m (0 ft)
Length 35 km (22 mi)
The Water of Leith flows through the heart of Edinburgh, beginning in the Pentland Hills and winding its way for more than 30 kilometres before reaching the Firth of Forth. Its water remains cool throughout the year, reflecting Scotland’s temperate maritime climate and the steady inflow of upland streams. In winter, the river’s temperature usually ranges between 4–6 °C (39–43 °F), rising to around 8–10 °C (46–50 °F) in spring. During the summer months, it can reach 14–16 °C (57–61 °F) in sheltered stretches, though deeper or shaded sections stay colder. By autumn, the water cools again toward 9–11 °C (48–52 °F), maintaining a refreshing and often brisk character year-round.
Swimming in the Water of Leith is allowed in principle but generally discouraged within the city due to strong currents, limited access points, and variable water quality. However, some experienced wild swimmers enjoy short dips in cleaner, upstream sections near Balerno or Currie during warmer months. Wetsuits are commonly used, as the river rarely feels warm enough for long swims. Beyond swimming, the Water of Leith Walkway offers scenic trails through Edinburgh, passing attractions such as Dean Village, the Scottish National Gallery of Modern Art, and Stockbridge, blending urban life with tranquil natural scenery.