Powdermill Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Powdermill Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Powdermill Reservoir today is 16.6°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 |
|---|---|---|---|
| SEP 16 | 18.0°C | 18.0°C | |
| SEP 17 | 18.2°C | 18.0°C | |
| SEP 18 | 17.7°C | 18.0°C | |
| SEP 19 | 17.1°C | 18.0°C | |
| SEP 20 | 17.0°C | 18.0°C | |
| SEP 21 | 17.3°C | 18.0°C | |
| SEP 22 | 17.2°C | 18.0°C | |
| SEP 23 | 16.6°C | 18.0°C | |
| SEP 24 | 18.0°C | 16.7°C | |
| SEP 25 | 18.0°C | 16.7°C | |
| SEP 26 | 18.0°C | 16.8°C | |
| SEP 27 | 18.0°C | 16.9°C | |
| SEP 28 | 18.0°C | 17.0°C | |
| SEP 29 | 18.0°C | 17.0°C | |
| SEP 30 | 18.0°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 | 4°C | 8°C | 11°C |
| February | 4°C | 8°C | 11°C |
| March | 5°C | 9°C | 12°C |
| April | 7°C | 11°C | 14°C |
| May | 7°C | 13°C | 20°C |
| June | 14°C | 20°C | 25°C |
| July | 16°C | 21°C | 26°C |
| August | 17°C | 22°C | 27°C |
| September | 12°C | 18°C | 23°C |
| October | 7°C | 11°C | 14°C |
| November | 5°C | 9°C | 12°C |
| December | 4°C | 8°C | 11°C |
Powdermill Reservoir: Water Temperature by Location
Powdermill Reservoir: Weather Forecast
September 23
September 24
September 25
September 26
September 27
Location & Local Information
#East Sussex
Powdermill Reservoir in East Sussex experiences the typical seasonal swings of an English reservoir. In winter surface temperatures are commonly around 4–8 °C (39–46 °F), rising in spring to roughly 6–14 °C (43–57 °F). In summer the water can reach about 14–20 °C (57–68 °F) during warm spells, while autumn usually sees a fall back to approximately 8–14 °C (46–57 °F). Deeper water remains colder throughout the year and local weather, recent rainfall and sunshine will influence exact readings on any given day.
Swimming at Powdermill is generally discouraged or not permitted because the reservoir is managed for water supply and for safety reasons: cold, variable depths, hidden hazards and lack of lifeguards make unsupervised bathing risky. Visitors therefore tend to enjoy the area from the shore, using the surrounding paths for walking, birdwatching and cycling. Nearby attractions include tranquil woodland and heathland, local villages with country pubs, and attractive countryside routes that offer alternatives to entering the water.