Colchester — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Colchester, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Colchester today is 21.2°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 | 20.4°C | 21.1°C | |
| JUN 24 | 20.4°C | 21.1°C | |
| JUN 25 | 20.5°C | 21.1°C | |
| JUN 26 | 20.5°C | 21.1°C | |
| JUN 27 | 21.5°C | 21.1°C | |
| JUN 28 | 21.5°C | 21.1°C | |
| JUN 29 | 21.6°C | 21.1°C | |
| JUN 30 | 22.0°C | 21.1°C | |
| JUL 1 | 23.0°C | 21.3°C | |
| JUL 2 | 23.0°C | 21.4°C | |
| JUL 3 | 23.0°C | 21.5°C | |
| JUL 4 | 23.0°C | 21.6°C | |
| JUL 5 | 23.0°C | 21.7°C | |
| JUL 6 | 23.0°C | 21.7°C | |
| JUL 7 | 23.0°C | 21.8°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 | 16°C |
| May | 11°C | 16°C | 21°C |
| June | 15°C | 21°C | 27°C |
| July | 18°C | 23°C | 28°C |
| August | 17°C | 22°C | 27°C |
| September | 15°C | 20°C | 25°C |
| October | 11°C | 15°C | 18°C |
| November | 5°C | 9°C | 13°C |
| December | 4°C | 8°C | 11°C |
Colchester: Weather Forecast
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July 3
July 4
July 5
July 6
Location & Local Information
Colchester, located in Essex in the southeast of England, lies near the River Colne and several small lakes and reservoirs that reflect the region’s mild coastal climate. The water in these bodies tends to remain cool but relatively stable throughout the year. In winter, average temperatures are around 4–6 °C (39–43 °F), rising in spring to about 8–10 °C (46–50 °F). During the summer, water temperatures can reach 16–18 °C (61–64 °F) in sheltered or shallow areas, though larger bodies remain slightly cooler. By autumn, the temperature usually drops again toward 10–12 °C (50–54 °F), maintaining a moderate but refreshing feel typical of southeastern England’s waterways.
Swimming in and around Colchester is allowed in certain managed locations but should be approached with care in natural rivers or ponds. The River Colne and nearby lakes can be suitable for experienced wild swimmers during warm weather, though water quality and currents vary. Wetsuits are recommended outside midsummer for comfort. The area is well known for its scenic walks and boating opportunities along the riverbanks. Nearby attractions include Castle Park, High Woods Country Park, and the Colne Estuary Nature Reserve, while the coastal beaches of Mersea Island offer additional spots for open-water swimming and recreation.