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 16.8°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 | 18.3°C | 20.0°C | |
| SEP 17 | 18.1°C | 20.0°C | |
| SEP 18 | 18.3°C | 20.0°C | |
| SEP 19 | 17.8°C | 20.0°C | |
| SEP 20 | 17.2°C | 20.0°C | |
| SEP 21 | 17.8°C | 20.0°C | |
| SEP 22 | 17.4°C | 20.0°C | |
| SEP 23 | 16.8°C | 20.0°C | |
| SEP 24 | 20.0°C | 17.0°C | |
| SEP 25 | 20.0°C | 17.1°C | |
| SEP 26 | 20.0°C | 17.3°C | |
| SEP 27 | 20.0°C | 17.4°C | |
| SEP 28 | 20.0°C | 17.6°C | |
| SEP 29 | 20.0°C | 17.8°C | |
| SEP 30 | 20.0°C | 17.9°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
September 23
September 24
September 25
September 26
September 27
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.