Yarrow Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Yarrow Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Yarrow Reservoir today is 17°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 26 | 17.0°C | 21.7°C | |
| AUG 27 | 17.0°C | 21.7°C | |
| AUG 28 | 17.0°C | 21.7°C | |
| AUG 29 | 17.0°C | 21.7°C | |
| AUG 30 | 17.3°C | 21.7°C | |
| AUG 31 | 17.3°C | 21.7°C | |
| SEP 1 | 16.4°C | 19.0°C | |
| SEP 2 | 17.0°C | 19.0°C | |
| SEP 3 | 19.0°C | 17.1°C | |
| SEP 4 | 19.0°C | 17.2°C | |
| SEP 5 | 19.0°C | 17.3°C | |
| SEP 6 | 19.0°C | 17.4°C | |
| SEP 7 | 19.0°C | 17.5°C | |
| SEP 8 | 19.0°C | 17.6°C | |
| SEP 9 | 19.0°C | 17.7°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 | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 3°C | 7°C | 10°C |
| April | 7°C | 11°C | 14°C |
| May | 11°C | 17°C | 22°C |
| June | 14°C | 21°C | 27°C |
| July | 17°C | 23°C | 28°C |
| August | 16°C | 22°C | 27°C |
| September | 13°C | 19°C | 24°C |
| October | 10°C | 14°C | 18°C |
| November | 5°C | 9°C | 12°C |
| December | 2°C | 6°C | 9°C |
Yarrow Reservoir: Water Temperature by Location
Yarrow Reservoir: Weather Forecast
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Location & Local Information
#Lancashire
Yarrow Reservoir, on the West Pennine Moors near Chorley in Lancashire, is an upland drinking-water reservoir with consistently cool water. Surface temperatures vary by season: in summer the reservoir typically reaches about 12–18 °C (54–64 °F), occasionally touching 20 °C (68 °F) on warm days; in spring and autumn temperatures are commonly 6–12 °C (43–54 °F); and in winter the water usually falls to around 2–6 °C (36–43 °F). Cold, deep water and rapid weather changes mean even summer swimming can produce cold-shock responses.
Swimming in Yarrow Reservoir is generally discouraged and, in many places, formally prohibited because it is a working water supply and because submerged hazards, steep banks and changing currents create safety risks. Despite this, some experienced wild swimmers do enter in permitted nearby locations or during organised events, taking precautions. The area remains attractive for walkers and cyclists, with nearby features such as Rivington Pike, the Rivington Terraced Gardens and the moorland routes to Winter Hill offering scenic viewpoints and well-established trails for day visits.
Nearby Lakes
- Upper Rivington Reservoir
- Anglezarke Reservoir
- Lower Rivington Reservoir
- Belmont Reservoir
- Upper Roddlesworth Reservoir
- Lower Roddlesworth Reservoir
- Dingle Reservoir
- Worthington Lakes
- High Rid Reservoir
- Rake Brook Reservoir
- Rumworth Lodge Reservoir
- Turton and Entwistle Reservoir
- Jumbles Reservoir
- Wayoh Reservoir
- Calf Hey Reservoir