Lake Longdendale Chain — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Longdendale Chain, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Longdendale Chain 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 | 18.7°C | 21.0°C | |
| AUG 7 | 18.7°C | 21.0°C | |
| AUG 8 | 18.7°C | 21.0°C | |
| AUG 9 | 18.7°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 | 1°C | 5°C | 8°C |
| February | 1°C | 5°C | 8°C |
| March | 2°C | 6°C | 9°C |
| April | 6°C | 10°C | 13°C |
| May | 10°C | 15°C | 21°C |
| June | 13°C | 20°C | 26°C |
| July | 16°C | 22°C | 27°C |
| August | 16°C | 21°C | 26°C |
| September | 12°C | 18°C | 23°C |
| October | 9°C | 13°C | 17°C |
| November | 3°C | 7°C | 11°C |
| December | 1°C | 5°C | 8°C |
Lake Longdendale Chain: Water Temperature by Location
Lake Longdendale Chain: Weather Forecast
August 14
August 15
August 16
August 17
August 18
August 19
Location & Local Information
#Derbyshire
The Longdendale Chain of reservoirs in Derbyshire tends to be cold year-round. Summer surface temperatures typically reach around 14–20 °C (57–68 °F) on warmer days, while spring and autumn commonly see 6–14 °C (43–57 °F). In winter the water can sit close to freezing, roughly 0–6 °C (32–43 °F), especially beneath any surface ice. Deeper water remains colder than the surface, so temperature can fall several degrees within a short depth.
Swimming in the Longdendale reservoirs is generally discouraged and in some places effectively prohibited by the water company and local authorities. Reasons include protection of the drinking-water supply, no lifeguards, hidden currents and structures, and the serious risk of cold-water shock at these temperatures. Despite occasional visits by experienced wild swimmers, any swimming carries safety and legal considerations. The area remains attractive for walking and cycling on the Longdendale Trail and nearby Pennine routes, with good birdwatching, scenic views and easy access from Glossop and other Peak District gateways.