Ardleigh Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Ardleigh Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Ardleigh Reservoir today is 21.1°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 |
|---|---|---|---|
| JUN 23 | 20.3°C | 21.6°C | |
| JUN 24 | 20.3°C | 21.6°C | |
| JUN 25 | 20.4°C | 21.6°C | |
| JUN 26 | 20.4°C | 21.6°C | |
| JUN 27 | 21.4°C | 21.6°C | |
| JUN 28 | 21.4°C | 21.6°C | |
| JUN 29 | 21.5°C | 21.6°C | |
| JUN 30 | 21.9°C | 21.6°C | |
| JUL 1 | 24.0°C | 21.2°C | |
| JUL 2 | 24.0°C | 21.4°C | |
| JUL 3 | 24.0°C | 21.5°C | |
| JUL 4 | 24.0°C | 21.7°C | |
| JUL 5 | 24.0°C | 21.8°C | |
| JUL 6 | 24.0°C | 22.0°C | |
| JUL 7 | 24.0°C | 22.1°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 | 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 |
Ardleigh Reservoir: Water Temperature by Location
Ardleigh Reservoir: Weather Forecast
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Location & Local Information
#Essex
Ardleigh Reservoir, near Colchester in Essex, is a relatively deep body of water used primarily for water supply, wildlife and angling. Water temperatures vary through the year: in winter the surface typically sits around 4–8 °C (39–46 °F), spring warms to roughly 8–14 °C (46–57 °F), summer can reach about 17–22 °C (63–72 °F) on warmer days, and autumn cools back to near 10–15 °C (50–59 °F). These are approximate seasonal ranges and actual temperatures depend on recent weather, depth and wind conditions.
Swimming is generally not permitted at Ardleigh Reservoir. As a working reservoir the site is managed to protect water quality and public safety; steep banks, cold deep water and the absence of lifeguards increase risk, and signage and facility rules typically prohibit open swimming. The area is nonetheless attractive to anglers and birdwatchers, and there are walking routes nearby. Local attractions include the surrounding Essex countryside, the Essex Way footpath and the amenities and historic sights of nearby Colchester.