East Warwick Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in East Warwick Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in East Warwick Reservoir 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 3 | 17.3°C | 21.8°C | |
| JUN 4 | 16.6°C | 21.8°C | |
| JUN 5 | 16.6°C | 21.8°C | |
| JUN 6 | 16.6°C | 21.8°C | |
| JUN 7 | 16.8°C | 21.8°C | |
| JUN 8 | 15.5°C | 21.8°C | |
| JUN 10 | 15.4°C | 21.8°C | |
| JUN 11 | 21.8°C | 15.7°C | |
| JUN 12 | 21.8°C | 16.0°C | |
| JUN 13 | 21.8°C | 16.4°C | |
| JUN 14 | 21.8°C | 16.7°C | |
| JUN 15 | 21.8°C | 17.0°C | |
| JUN 16 | 21.8°C | 17.3°C | |
| JUN 17 | 21.8°C | 17.6°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 | 15°C | 22°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 |
East Warwick Reservoir: Water Temperature by Location
East Warwick Reservoir: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
#Greater London
East Warwick Reservoir, on the outskirts of Greater London, typically has cool to chilly water year-round. Seasonal surface temperatures commonly range from about 4–8°C (39–46°F) in winter, warming to roughly 6–14°C (43–57°F) in spring. In summer the reservoir may reach 15–22°C (59–72°F) on milder days, while autumn sees a gradual decline to around 10–15°C (50–59°F). These figures can vary with weather, depth and inflow, and colder thermoclines mean deeper water is often several degrees cooler than the surface.
Public swimming is generally not permitted at East Warwick Reservoir because it forms part of urban water infrastructure and is managed for safety and water quality. Barriers, steep banks, intake structures and potential contamination make unsupervised wild swimming unsafe and usually prohibited by the managing authority. Those seeking open-water swimming in the area are usually advised to use supervised venues or designated spots in the Lee Valley Regional Park. Nearby attractions include riverside walking routes, birdwatching areas and other green spaces in Lee Valley that offer nature observation and recreational paths without the hazards associated with reservoir bathing.