Dartford — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Dartford, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Dartford today is 20.9°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 |
|---|---|---|---|
| JUL 16 | 23.8°C | 20.0°C | |
| JUL 17 | 22.1°C | 20.0°C | |
| JUL 18 | 22.0°C | 20.0°C | |
| JUL 19 | 22.0°C | 20.0°C | |
| JUL 20 | 22.0°C | 20.0°C | |
| JUL 21 | 21.0°C | 20.0°C | |
| JUL 22 | 21.0°C | 20.0°C | |
| JUL 23 | 20.9°C | 20.0°C | |
| JUL 24 | 20.0°C | 20.9°C | |
| JUL 25 | 20.0°C | 20.8°C | |
| JUL 26 | 20.0°C | 20.8°C | |
| JUL 27 | 20.0°C | 20.7°C | |
| JUL 28 | 20.0°C | 20.7°C | |
| JUL 29 | 20.0°C | 20.6°C | |
| JUL 30 | 20.0°C | 20.6°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 | 2°C | 6°C | 9°C |
| February | 3°C | 7°C | 9°C |
| March | 5°C | 9°C | 11°C |
| April | 8°C | 11°C | 14°C |
| May | 9°C | 14°C | 19°C |
| June | 14°C | 19°C | 24°C |
| July | 16°C | 20°C | 25°C |
| August | 15°C | 19°C | 24°C |
| September | 13°C | 18°C | 22°C |
| October | 9°C | 13°C | 16°C |
| November | 4°C | 8°C | 12°C |
| December | 3°C | 7°C | 9°C |
Dartford: Weather Forecast
July 23
July 24
July 25
July 26
July 27
Location & Local Information
Dartford, a town in Kent on the southern bank of the River Thames, sits near the point where the river becomes wide and tidal, influenced by both fresh and saltwater. In this lower section, the Thames has a moderate but variable temperature that changes with the seasons. During winter, the water typically measures around 6–8°C (43–46°F), staying cold and fast-moving. In spring, it gradually warms to about 10–13°C (50–55°F), while in midsummer—usually July and August—the surface temperature can reach 17–19°C (63–66°F). Because of tidal mixing and river depth, the water often feels cooler than in upstream areas. By early autumn, it slowly cools back to around 12–14°C (54–57°F), maintaining a fresh character year-round.
Swimming in the Thames at Dartford is technically possible but not recommended for casual swimmers. The river here experiences strong tides, boat traffic, and variable water quality, which make it suitable only for well-prepared and experienced open-water swimmers. Local residents and visitors tend to enjoy the water from the shore through riverside walks, kayaking, or cycling paths that trace the estuary. Beyond the river, Dartford offers nearby attractions such as Central Park, the scenic Darent Valley, and easy access to the sweeping landscapes of the Kent countryside.