Hisehope Reservoir — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Hisehope Reservoir, trends, monthly ranges and the forecast for the coming days.

Cow Green Reservoir, United Kingdom © By Paul White, CC BY-SA 4.0

Current Water Temperature

13.6°C

Today

13.4°C

Yesterday

13.7°C

A Week Ago

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Water Temperature in Hisehope Reservoir today is 13.6°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 August 23 to September 23

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
SEP 16	14.0°C	18.0°C
SEP 17	14.2°C	18.0°C
SEP 18	14.0°C	18.0°C
SEP 19	13.8°C	18.0°C
SEP 20	13.6°C	18.0°C
SEP 21	13.4°C	18.0°C
SEP 22	12.8°C	18.0°C
SEP 24		18.0°C	13.8°C
SEP 25		18.0°C	14.0°C
SEP 26		18.0°C	14.3°C
SEP 27		18.0°C	14.5°C
SEP 28		18.0°C	14.7°C
SEP 29		18.0°C	14.9°C
SEP 30		18.0°C	15.1°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	0°C	4°C	7°C
February	0°C	4°C	7°C
March	2°C	6°C	9°C
April	5°C	9°C	12°C
May	8°C	14°C	20°C
June	12°C	19°C	25°C
July	14°C	20°C	26°C
August	14°C	20°C	26°C
September	12°C	18°C	23°C
October	8°C	12°C	15°C
November	3°C	7°C	11°C
December	0°C	3°C	7°C

Hisehope Reservoir: Water Temperature by Location

🇬🇧 United Kingdom > England

Hisehope Reservoir: Weather Forecast

September 23

° / °

slight rain

rain: 92% | wind:

September 24

° / °

overcast

rain: 9% | wind:

September 25

° / °

moderate drizzle

rain: 57% | wind:

September 26

° / °

mainly clear

rain: 32% | wind:

September 27

° / °

moderate drizzle

rain: 67% | wind:

Location & Local Information

#County Durham

Hisehope Reservoir sits high in County Durham and stays relatively cold through the year. Typical surface temperatures range from about 1–4 °C (34–39 °F) in winter, warming to roughly 4–10 °C (39–50 °F) in spring and autumn, and reaching perhaps 10–16 °C (50–61 °F) on warmer summer days. Because it is an upland drinking-water reservoir, thermals and stratification mean deeper water will be several degrees colder than the surface even in summer, so swimmers are likely to encounter brisk conditions year-round.

Swimming at Hisehope is generally discouraged or not permitted because the reservoir is part of the public water supply and there are safety risks such as cold shock, hidden currents and poor access for rescue. People interested in open-water swimming usually choose supervised lidos or popular wild-swim sites elsewhere. The area is nonetheless attractive for visitors: there are upland walks on Muggleswick Common, scenic views within the North Pennines Area of Outstanding Natural Beauty, and nearby reservoirs and towns offering trails, wildlife watching and local heritage in Weardale and Stanhope.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Hisehope Reservoir?

Water Temperature in Hisehope Reservoir today is 13.6°C.

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

The water temperature in Hisehope Reservoir in summer fluctuates in the range of 12°C - 26°C.

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

Swimming at Hisehope Reservoir is only possible as informal wild swimming rather than an organised activity — there are no official facilities or lifeguards, access is via local paths, and anyone choosing to swim should check local signs and landowner rules and be prepared for cold, deep water, hidden hazards and personal responsibility for safety.