Tottiford Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Tottiford Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Tottiford Reservoir today is 18.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 | 18.0°C | 21.0°C | |
| AUG 7 | 18.0°C | 21.0°C | |
| AUG 8 | 18.0°C | 21.0°C | |
| AUG 9 | 18.0°C | 21.0°C | |
| AUG 10 | 18.3°C | 21.0°C | |
| AUG 11 | 18.3°C | 21.0°C | |
| AUG 12 | 18.3°C | 21.0°C | |
| AUG 13 | 18.3°C | 21.0°C | |
| AUG 14 | 21.0°C | 18.4°C | |
| AUG 15 | 21.0°C | 18.6°C | |
| AUG 16 | 21.0°C | 18.7°C | |
| AUG 17 | 21.0°C | 18.8°C | |
| AUG 18 | 21.0°C | 19.0°C | |
| AUG 19 | 21.0°C | 19.1°C | |
| AUG 20 | 21.0°C | 19.2°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 | 3°C | 7°C | 10°C |
| March | 4°C | 8°C | 11°C |
| April | 6°C | 10°C | 13°C |
| May | 6°C | 11°C | 17°C |
| June | 13°C | 19°C | 24°C |
| July | 14°C | 20°C | 25°C |
| August | 16°C | 21°C | 26°C |
| September | 11°C | 17°C | 22°C |
| October | 6°C | 10°C | 13°C |
| November | 4°C | 8°C | 11°C |
| December | 3°C | 7°C | 10°C |
Tottiford Reservoir: Water Temperature by Location
Tottiford Reservoir: Weather Forecast
August 14
August 15
August 16
Location & Local Information
#Devon
Tottiford Reservoir, nestled within the scenic landscape of Dartmoor, Devon, is a vital component of the local water supply infrastructure, serving the critical function of providing potable water to surrounding communities. Due to its essential role in public water provision, all forms of body-contact recreation, including swimming, are strictly forbidden. This measure is rigorously enforced to safeguard water quality, minimizing the risk of contamination from environmental sources or human activity. Additionally, the reservoir environment, encompassing hidden machinery, steep banks, and fluctuating water depths, presents significant and unpredictable hazards that necessitate the swimming ban for public safety.
The reservoir’s water temperature follows the typical seasonal pattern for inland bodies in the South West of England. During the depth of winter (December to February), the temperature typically ranges from a chilling 37°F to 45°F (3°C to 7°C), making immersion hazardous due to the threat of cold water shock. As the seasons transition, summer surface temperatures (June to August) rise to a more pleasant 60°F to 68°F (16°C to 20°C). However, the overall mass of water retains lower temperatures, and the risk of cold water shock persists in deeper areas year-round, reinforcing the decision to prohibit swimming activities.