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.

Lower Rivington Reservoir, United Kingdom © By PopUpPirate, CC BY-SA 3.0

Current Water Temperature

18.1°C

Today

18.1°C

Yesterday

16.3°C

A Week Ago

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Water Temperature in Yarrow Reservoir today is 18.1°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

From June 1 to July 2

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUN 25	16.3°C	20.8°C
JUN 26	16.3°C	20.8°C
JUN 27	18.0°C	20.8°C
JUN 28	18.0°C	20.8°C
JUN 29	17.5°C	20.8°C
JUN 30	17.9°C	20.8°C
JUL 1	18.1°C	23.0°C
JUL 2	18.1°C	23.0°C
JUL 3		23.0°C	18.3°C
JUL 4		23.0°C	18.6°C
JUL 5		23.0°C	18.8°C
JUL 6		23.0°C	19.1°C
JUL 7		23.0°C	19.3°C
JUL 8		23.0°C	19.6°C
JUL 9		23.0°C	19.8°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	18°C	23°C	28°C
August	17°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

🇬🇧 United Kingdom > England

Yarrow Reservoir: Weather Forecast

July 3

° / °

overcast

rain: 11% | wind:

July 4

° / °

light drizzle

rain: 27% | wind:

July 5

° / °

overcast

rain: 21% | wind:

July 6

° / °

overcast

rain: 8% | wind:

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

Frequently Asked Questions

What is the current water temperature in Yarrow Reservoir?

Water Temperature in Yarrow Reservoir today is 18.1°C.

What is the water temperature in Yarrow Reservoir during the summer months?

The water temperature in Yarrow Reservoir in summer fluctuates in the range of 14°C - 28°C.

Is it possible to swim in Yarrow Reservoir (United Kingdom) and what are the possibilities for this?

Officially there are no designated or supervised swimming facilities at Yarrow Reservoir and landowners and water companies generally discourage or prohibit wild swimming for safety and water‑quality reasons, so although some people do swim there at their own risk, safer options are to join organised open‑water swim groups that use permitted sites or to use nearby managed pools and lidos.