River Witham — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the River Witham, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the River Witham today is 14.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 15 | 15.9°C | 15.0°C | |
| SEP 16 | 16.7°C | 15.0°C | |
| SEP 17 | 16.2°C | 15.0°C | |
| SEP 18 | 15.9°C | 15.0°C | |
| SEP 19 | 15.6°C | 15.0°C | |
| SEP 20 | 15.0°C | 15.0°C | |
| SEP 21 | 15.5°C | 15.0°C | |
| SEP 22 | 15.0°C | 15.0°C | |
| SEP 23 | 15.0°C | 14.8°C | |
| SEP 24 | 15.0°C | 14.8°C | |
| SEP 25 | 15.0°C | 14.8°C | |
| SEP 26 | 15.0°C | 14.8°C | |
| SEP 27 | 15.0°C | 14.9°C | |
| SEP 28 | 15.0°C | 14.9°C | |
| SEP 29 | 15.0°C | 14.9°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 | 0°C | 3°C | 6°C |
| February | 0°C | 4°C | 7°C |
| March | 2°C | 6°C | 9°C |
| April | 6°C | 9°C | 12°C |
| May | 9°C | 15°C | 19°C |
| June | 13°C | 18°C | 22°C |
| July | 14°C | 18°C | 23°C |
| August | 14°C | 18°C | 23°C |
| September | 10°C | 15°C | 19°C |
| October | 8°C | 11°C | 14°C |
| November | 3°C | 7°C | 11°C |
| December | 0°C | 4°C | 8°C |
River Witham: Water Temperature by Location
River Witham: Weather Forecast
September 23
September 24
September 25
September 26
September 27
Location & Local Information
Source:
• location South Witham, Lincolnshire
• coordinates 52.755622°N 0.690858°W
• elevation 130 m (430 ft)
Mouth:
• location The Haven, Boston, Lincolnshire
• coordinates 52.964541°N 0.010042°W
• elevation 0 m (0 ft)
Length 132 km (82 mi)
The River Witham, which flows through Lincolnshire, sees a marked seasonal change in its water temperature. During the cold winter months, the water can be quite chilling, typically ranging from about 4∘C to 8∘C (39∘F to 46∘F). As summer approaches, the river warms up, particularly in slower moving sections, often settling between 16∘C and 20∘C (61∘F to 68∘F) during peak heat, a temperature range considered fresh for swimming.
Despite the occasional warmth, swimming in the River Witham is not formally encouraged due to a number of risks. Local bylaws, such as those historically in place near Brayford Pool in Lincoln, may prohibit it for safety reasons, and the river's overall water quality is a significant concern, with pollution from agricultural run-off and sewage posing potential health hazards. Consequently, other recreational activities are more popular, such as boating and cycling the adjacent Water Rail Way, a scenic route that follows the former railway line between Lincoln and Boston. Visitors to the area can also explore the historic sites in Lincoln, including the magnificent Lincoln Cathedral and Lincoln Castle.