Tring Reservoirs — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Tring Reservoirs, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Tring Reservoirs today is 19.9°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 |
|---|---|---|---|
| JUN 25 | 19.8°C | 20.9°C | |
| JUN 26 | 19.8°C | 20.9°C | |
| JUN 27 | 21.1°C | 20.9°C | |
| JUN 28 | 21.1°C | 20.9°C | |
| JUN 29 | 21.2°C | 20.9°C | |
| JUN 30 | 21.3°C | 20.9°C | |
| JUL 1 | 20.0°C | 24.0°C | |
| JUL 2 | 19.9°C | 24.0°C | |
| JUL 3 | 24.0°C | 20.1°C | |
| JUL 4 | 24.0°C | 20.3°C | |
| JUL 5 | 24.0°C | 20.5°C | |
| JUL 6 | 24.0°C | 20.7°C | |
| JUL 7 | 24.0°C | 20.9°C | |
| JUL 8 | 24.0°C | 21.1°C | |
| JUL 9 | 24.0°C | 21.3°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 | 4°C | 8°C | 11°C |
| March | 6°C | 10°C | 13°C |
| April | 8°C | 13°C | 17°C |
| May | 10°C | 16°C | 22°C |
| June | 13°C | 21°C | 28°C |
| July | 19°C | 24°C | 29°C |
| August | 18°C | 23°C | 28°C |
| September | 16°C | 21°C | 26°C |
| October | 11°C | 15°C | 19°C |
| November | 4°C | 9°C | 13°C |
| December | 4°C | 8°C | 11°C |
Tring Reservoirs: Water Temperature by Location
Tring Reservoirs: Weather Forecast
July 3
July 4
July 5
July 6
Location & Local Information
#Hertfordshire
The Tring Reservoirs are shallow, open water bodies that show noticeable seasonal variation in temperature. In spring surface temperatures are commonly around 6–14 °C (43–57 °F), rising in summer to roughly 16–22 °C (61–72 °F) on warmer days. Autumn typically brings cooling to about 8–14 °C (46–57 °F), while winter surface readings often sit between 4–8 °C (39–46 °F). Because the reservoirs are relatively shallow and exposed, they can warm quickly on sunny spells but also lose heat fast overnight; deeper areas and shaded sections remain substantially colder, so surface figures can be misleading for swimmers.
Swimming at Tring Reservoirs is generally not officially promoted and is often discouraged for safety and water‑supply reasons; there are no lifeguards and signage may warn against entry. As a result, any wild swimming tends to be informal and undertaken at one’s own risk, with cold shock and underwater hazards cited as common concerns. The area remains attractive for visitors for other reasons, including the Natural History Museum at Tring, waterside birdwatching, the adjacent Grand Union Canal and towpath walks, and the nearby Ashridge Estate for longer countryside rambles.