Tonbridge — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Tonbridge, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Tonbridge today is 15.6°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 | 17.3°C | 18.0°C | |
| SEP 17 | 17.3°C | 18.0°C | |
| SEP 18 | 16.8°C | 18.0°C | |
| SEP 19 | 16.4°C | 18.0°C | |
| SEP 20 | 15.9°C | 18.0°C | |
| SEP 21 | 16.3°C | 18.0°C | |
| SEP 22 | 16.1°C | 18.0°C | |
| SEP 24 | 18.0°C | 15.7°C | |
| SEP 25 | 18.0°C | 15.8°C | |
| SEP 26 | 18.0°C | 16.0°C | |
| SEP 27 | 18.0°C | 16.1°C | |
| SEP 28 | 18.0°C | 16.2°C | |
| SEP 29 | 18.0°C | 16.3°C | |
| SEP 30 | 18.0°C | 16.4°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 | 13°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 |
Tonbridge: Weather Forecast
September 23
September 24
September 25
September 26
September 27
Location & Local Information
Tonbridge, a historic market town in Kent, is set along the River Medway, where the water flows calmly through meadows and wooded banks before heading toward Maidstone. The river’s temperature reflects the mild southern English climate, changing steadily through the seasons. In winter, the Medway around Tonbridge typically stays between 4 and 6°C (39–43°F), remaining cold and clear. By spring, it gradually warms to about 9–12°C (48–54°F). During midsummer—especially in July and August—the water often reaches 17–20°C (63–68°F), making it one of the more comfortable rivers in southeast England for outdoor activities. As autumn arrives, it cools again to around 12–14°C (54–57°F), keeping a pleasant freshness well into late October.
Swimming in the River Medway at Tonbridge is permitted and increasingly popular during the warmer months. The water is generally clean, and the current is moderate, making it suitable for experienced swimmers and paddlers. Designated access points near Haysden Country Park and the town’s riverside meadows provide safe areas to enjoy the water. Care is still advised after heavy rain when the flow can strengthen. Beyond swimming, Tonbridge offers riverside walks, kayaking routes, and nearby attractions such as Tonbridge Castle, Barden Lake, and the scenic Weald countryside that surrounds the Medway Valley.