Selset Reservoir — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Selset 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

17.2°C

Today

17.2°C

Yesterday

17.6°C

A Week Ago

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Water Temperature in Selset Reservoir today is 17.2°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

From June 22 to July 23

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUL 16	17.6°C	20.4°C
JUL 17	17.5°C	20.4°C
JUL 18	17.5°C	20.4°C
JUL 19	17.5°C	20.4°C
JUL 20	17.5°C	20.4°C
JUL 21	17.2°C	20.4°C
JUL 22	17.2°C	20.4°C
JUL 23	17.2°C	20.4°C
JUL 24		20.4°C	17.4°C
JUL 25		20.4°C	17.5°C
JUL 26		20.4°C	17.7°C
JUL 27		20.4°C	17.8°C
JUL 28		20.4°C	18.0°C
JUL 29		20.4°C	18.2°C
JUL 30		20.4°C	18.3°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	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	16°C	21°C	26°C
September	12°C	18°C	23°C
October	8°C	12°C	15°C
November	3°C	8°C	11°C
December	0°C	3°C	7°C

Selset Reservoir: Water Temperature by Location

🇬🇧 United Kingdom > England

Selset Reservoir: Weather Forecast

July 24

° / °

light drizzle

rain: 21% | wind:

July 25

° / °

light drizzle

rain: 84% | wind:

July 26

° / °

light drizzle

rain: 82% | wind:

July 27

° / °

light drizzle

rain: 80% | wind:

Location & Local Information

#County Durham

Selset Reservoir in County Durham sits high in Upper Teesdale and typically has cool, year‑round water. Surface temperatures in winter commonly hover around 2–6 °C (36–43 °F), rising through spring to roughly 6–12 °C (43–54 °F). In summer the reservoir often warms to about 14–20 °C (57–68 °F) on warmer spells, while autumn sees a steady drop to around 8–12 °C (46–54 °F). Being an upland waterbody, Selset’s surface temperature can change quickly with weather and usually remains noticeably cooler than lowland lakes and reservoirs.

Swimming at Selset is not formally supervised and the reservoir is part of a working water supply, so bathing is generally discouraged by the water company and local authorities because of cold‑water shock risk, submerged hazards, sudden depth changes and the absence of lifeguards. Wild swimmers do visit, but anyone entering the water should be experienced, wear appropriate thermal protection and check local guidance. The surrounding area is popular for walking, cycling and fishing, with Upper Teesdale scenery, High Force waterfall and a network of Pennine footpaths and rural villages nearby.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Selset Reservoir?

Water Temperature in Selset Reservoir today is 17.2°C.

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

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

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

Selset Reservoir is a working water supply where swimming is not officially promoted and can be hazardous, though people do swim there informally and organised or club-led swims may be possible only with the reservoir owner's permission and appropriate safety precautions.