River Clyde — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the River Clyde, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the River Clyde today is 15.4°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 |
|---|---|---|---|
| JUN 25 | 15.1°C | 17.0°C | |
| JUN 26 | 15.1°C | 17.0°C | |
| JUN 27 | 15.5°C | 17.0°C | |
| JUN 28 | 15.5°C | 17.0°C | |
| JUN 29 | 15.6°C | 17.0°C | |
| JUN 30 | 16.0°C | 17.0°C | |
| JUL 1 | 15.4°C | 17.0°C | |
| JUL 2 | 15.4°C | 17.0°C | |
| JUL 3 | 17.0°C | 15.5°C | |
| JUL 4 | 17.0°C | 15.6°C | |
| JUL 5 | 17.0°C | 15.6°C | |
| JUL 6 | 17.0°C | 15.7°C | |
| JUL 7 | 17.0°C | 15.8°C | |
| JUL 8 | 17.0°C | 15.9°C | |
| JUL 9 | 17.0°C | 16.0°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 | 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 | 11°C |
| December | 0°C | 4°C | 7°C |
River Clyde: Water Temperature by Location
River Clyde: Weather Forecast
July 3
July 4
July 5
July 6
Location & Local Information
Source Lowther Hills in South Lanarkshire
• location South Lanarkshire, Scotland
• coordinates 55°24′23.8″N 3°39′8.9″W
Mouth Firth of Clyde
• location Tail of the Bank, between Greenock and Ardmore Point near Helensburgh, Scotland
• coordinates 55°58′12″N 4°45′15″W
Length 110 mi (180 km)
The River Clyde, one of Scotland’s most iconic waterways, flows from the Southern Uplands through Glasgow and into the Firth of Clyde on the west coast. Its water temperature reflects the cool maritime climate of the region and the mix of freshwater and tidal influences along its lower course. In winter, the Clyde typically measures between 4 and 6°C (39–43°F), remaining cold and fast-flowing. By spring, the temperature slowly rises to around 8–10°C (46–50°F), while in midsummer, July and August, it can reach 14–16°C (57–61°F) in calmer sections. As autumn approaches, the water cools again to about 10–12°C (50–54°F), staying brisk throughout most of the year. Even in summer, the Clyde tends to feel colder than inland rivers because of its proximity to the sea.
Swimming in the River Clyde is generally not recommended within urban or industrial areas due to strong currents, variable water quality, and boat traffic. However, in rural upper sections near its source and in some tidal bays along the Firth of Clyde, experienced wild swimmers occasionally enjoy short dips during the warmer months. Most visitors prefer safer recreation like kayaking or coastal walks. The Clyde’s surroundings include Glasgow’s riverside landmarks, the scenic Ayrshire coast, and ferry routes to the western Scottish isles.