Wraysbury Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Wraysbury Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Wraysbury Reservoir today is 14.8°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 |
|---|---|---|---|
| JUN 3 | 16.4°C | 21.4°C | |
| JUN 4 | 16.4°C | 21.4°C | |
| JUN 5 | 16.4°C | 21.4°C | |
| JUN 6 | 16.4°C | 21.4°C | |
| JUN 7 | 15.1°C | 21.4°C | |
| JUN 8 | 15.1°C | 21.4°C | |
| JUN 10 | 15.1°C | 21.4°C | |
| JUN 11 | 21.4°C | 15.1°C | |
| JUN 12 | 21.4°C | 15.5°C | |
| JUN 13 | 21.4°C | 15.8°C | |
| JUN 14 | 21.4°C | 16.1°C | |
| JUN 15 | 21.4°C | 16.5°C | |
| JUN 16 | 21.4°C | 16.8°C | |
| JUN 17 | 21.4°C | 17.1°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 | 3°C | 7°C | 10°C |
| February | 4°C | 8°C | 11°C |
| March | 6°C | 10°C | 13°C |
| April | 9°C | 13°C | 17°C |
| May | 11°C | 17°C | 22°C |
| June | 14°C | 21°C | 28°C |
| July | 19°C | 24°C | 29°C |
| August | 18°C | 23°C | 28°C |
| September | 16°C | 21°C | 26°C |
| October | 11°C | 15°C | 19°C |
| November | 5°C | 9°C | 13°C |
| December | 4°C | 8°C | 11°C |
Wraysbury Reservoir: Water Temperature by Location
Wraysbury Reservoir: Weather Forecast
June 12
June 13
June 14
June 15
Location & Local Information
#Surrey
Wraysbury Reservoir, on the outskirts of Surrey in the Thames valley, tends to be cool year-round. Surface temperatures typically range from about 4–7 °C (39–45 °F) in winter, rising to roughly 6–12 °C (43–54 °F) in spring. By summer the water can warm to somewhere around 15–22 °C (59–72 °F), before dropping back to roughly 10–14 °C (50–57 °F) in autumn. Because it is a working reservoir supplying water and an operational body of water, open swimming is generally not permitted and is strongly discouraged for safety and legal reasons: there are hidden currents, variable depths, cold water shock risks, and water-quality protection measures that restrict unsupervised access.
Visitors who want outdoor recreation nearby will find several alternatives. The Runnymede meadows and historic memorials are a short drive away, Windsor and its parklands are close for sightseeing, and the Colne Valley regional park offers walking and cycling routes. The adjacent King George VI Reservoir and local rivers are also noted for birdwatching and angling rather than casual bathing.