Thornton Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Thornton Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Thornton Reservoir 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 |
|---|---|---|---|
| AUG 6 | 20.8°C | 22.0°C | |
| AUG 7 | 20.8°C | 22.0°C | |
| AUG 8 | 20.8°C | 22.0°C | |
| AUG 9 | 20.8°C | 22.0°C | |
| AUG 10 | 21.2°C | 22.0°C | |
| AUG 11 | 21.2°C | 22.0°C | |
| AUG 12 | 21.2°C | 22.0°C | |
| AUG 13 | 21.2°C | 22.0°C | |
| AUG 14 | 22.0°C | 21.2°C | |
| AUG 15 | 22.0°C | 21.3°C | |
| AUG 16 | 22.0°C | 21.3°C | |
| AUG 17 | 22.0°C | 21.4°C | |
| AUG 18 | 22.0°C | 21.4°C | |
| AUG 19 | 22.0°C | 21.4°C | |
| AUG 20 | 22.0°C | 21.5°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 | 4°C | 7°C |
| February | 1°C | 5°C | 8°C |
| March | 3°C | 7°C | 10°C |
| April | 7°C | 11°C | 14°C |
| May | 10°C | 17°C | 23°C |
| June | 13°C | 20°C | 26°C |
| July | 17°C | 22°C | 27°C |
| August | 17°C | 22°C | 27°C |
| September | 12°C | 18°C | 23°C |
| October | 9°C | 13°C | 17°C |
| November | 4°C | 8°C | 11°C |
| December | 1°C | 5°C | 8°C |
Thornton Reservoir: Water Temperature by Location
Thornton Reservoir: Weather Forecast
August 13
August 14
August 15
August 16
Location & Local Information
#Leicestershire
Thornton Reservoir’s water temperature follows the typical pattern for shallow Midlands reservoirs. In winter the surface can sit around 4–8 °C (39–46 °F), with spring warming to roughly 6–14 °C (43–57 °F) as the sun and air temperatures rise. Summer surface temperatures commonly reach 15–22 °C (59–72 °F) on warmer days but will stratify and cool with depth, and autumn sees a steady fall back towards 8–14 °C (46–57 °F) as the air chills. Conditions vary year to year with weather, wind and rainfall, and deeper or shaded areas stay noticeably colder than shallow sunny shallows.
Swimming in the reservoir is generally not permitted for safety and conservation reasons: cold water shock, unpredictable currents, hidden underwater hazards and water quality concerns make unsupervised bathing risky, and the site is managed principally for fishing, sailing and wildlife. Visitors often enjoy walking the perimeter paths, birdwatching, angling and model boating instead, and nearby attractions include peaceful countryside villages, picnic spots and heritage sites such as Bosworth Battlefield and the Market Bosworth area.