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 10.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. 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 |
|---|---|---|---|
| OCT 28 | 12.0°C | 15.0°C | |
| OCT 29 | 12.0°C | 15.0°C | |
| OCT 30 | 11.8°C | 15.0°C | |
| OCT 31 | 11.5°C | 15.0°C | |
| NOV 1 | 11.3°C | 9.1°C | |
| NOV 2 | 11.2°C | 9.1°C | |
| NOV 3 | 10.8°C | 9.1°C | |
| NOV 4 | 10.6°C | 9.1°C | |
| NOV 5 | 9.1°C | 10.5°C | |
| NOV 6 | 9.1°C | 10.5°C | |
| NOV 7 | 9.1°C | 10.4°C | |
| NOV 8 | 9.1°C | 10.3°C | |
| NOV 9 | 9.1°C | 10.2°C | |
| NOV 10 | 9.1°C | 10.2°C | |
| NOV 11 | 9.1°C | 10.1°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 |
East Warwick Reservoir: Water Temperature by Location
East Warwick Reservoir: Weather Forecast
November 5
November 6
November 7
November 8
November 9
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.