Walton-on-Thames — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Walton-on-Thames, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Walton-on-Thames today is 21.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| AUG 6 | 21.8°C | 19.0°C | |
| AUG 7 | 21.6°C | 19.0°C | |
| AUG 8 | 21.6°C | 19.0°C | |
| AUG 9 | 21.6°C | 19.0°C | |
| AUG 10 | 21.5°C | 19.0°C | |
| AUG 11 | 21.5°C | 19.0°C | |
| AUG 12 | 21.5°C | 19.0°C | |
| AUG 13 | 21.5°C | 19.0°C | |
| AUG 14 | 19.0°C | 21.5°C | |
| AUG 15 | 19.0°C | 21.3°C | |
| AUG 16 | 19.0°C | 21.2°C | |
| AUG 17 | 19.0°C | 21.1°C | |
| AUG 18 | 19.0°C | 21.0°C | |
| AUG 19 | 19.0°C | 20.8°C | |
| AUG 20 | 19.0°C | 20.7°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 | 2°C | 6°C | 9°C |
| February | 3°C | 7°C | 9°C |
| March | 5°C | 9°C | 11°C |
| April | 8°C | 11°C | 14°C |
| May | 9°C | 14°C | 18°C |
| June | 13°C | 19°C | 24°C |
| July | 16°C | 20°C | 25°C |
| August | 15°C | 19°C | 24°C |
| September | 13°C | 18°C | 22°C |
| October | 9°C | 13°C | 16°C |
| November | 4°C | 8°C | 11°C |
| December | 3°C | 7°C | 9°C |
Walton-on-Thames: Weather Forecast
August 14
August 15
August 16
August 17
August 18
August 19
Location & Local Information
The section of the River Thames that flows past Walton-on-Thames is typically non-tidal, resulting in a more predictable but still chilly water temperature. Throughout the year, seasonal changes mean the water temperature generally ranges from approximately 6 to 10∘C (43 to 50∘F) in winter, warming to around 18 to 22∘C (64 to 72∘F) during the peak summer months. Even in summer, the water is cool enough to cause cold water shock, which is a serious risk for those jumping in unexpectedly.
While swimming is not formally regulated and permitted as a designated bathing area, the Environment Agency strongly advises against it due to various hazards. These dangers include fast currents, unseen underwater debris, and the presence of boat traffic navigating the river. Water quality can also be a concern, particularly after heavy rainfall when sewage overflows may occur. For those visiting, the area is popular for riverside walks, boating activities from Walton Marina, and it is a short distance from major attractions like Hampton Court Palace and the theme parks of Thorpe Park.