Blackton Reservoir — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Blackton 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

12.6°C

Today

12.7°C

Yesterday

13.0°C

A Week Ago

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Water Temperature in Blackton Reservoir today is 12.6°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 May 10 to June 10

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUN 3	12.2°C	18.6°C
JUN 4	12.2°C	18.6°C
JUN 5	12.2°C	18.6°C
JUN 6	12.2°C	18.6°C
JUN 7	12.7°C	18.6°C
JUN 8	12.7°C	18.6°C
JUN 10	12.6°C	18.6°C
JUN 11		18.6°C	12.9°C
JUN 12		18.6°C	13.2°C
JUN 13		18.6°C	13.5°C
JUN 14		18.6°C	13.8°C
JUN 15		18.6°C	14.1°C
JUN 16		18.6°C	14.4°C
JUN 17		18.6°C	14.7°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	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	9°C	14°C	20°C
June	12°C	19°C	25°C
July	16°C	21°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	4°C	8°C	11°C
December	0°C	3°C	7°C

Blackton Reservoir: Water Temperature by Location

🇬🇧 United Kingdom > England

Blackton Reservoir: Weather Forecast

June 9

° / °

slight rain

rain: 100% | wind:

June 10

° / °

dense intensity drizzle

rain: 81% | wind:

June 11

° / °

moderate drizzle

rain: 84% | wind:

June 12

° / °

moderate drizzle

rain: 63% | wind:

June 13

° / °

overcast

rain: 47% | wind:

Location & Local Information

#County Durham

Blackton Reservoir in County Durham typically has cool water year-round, reflecting its upland setting. Seasonal surface temperatures commonly range from about 1–6 °C (34–43 °F) in winter, rising to roughly 6–12 °C (43–54 °F) in spring and autumn, and reaching around 14–18 °C (57–64 °F) in the warmest weeks of summer. These figures can vary with weather, depth and inflow, so conditions on any given day may be colder than expected, especially below the surface.

Swimming at Blackton Reservoir is not officially promoted and is often discouraged because reservoirs are working water bodies with safety risks such as cold shock, hidden currents and infrastructure related to water supply. Local rules and signage may prohibit entry into the water for public health and operational reasons, so visitors should check with the landowner or water company and follow posted guidance. The surrounding area offers plenty of alternatives, including country walks, upland moorland scenery and attractions associated with the North Pennines Area of Outstanding Natural Beauty, plus nearby waterfalls and village amenities for day visitors.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Blackton Reservoir?

Water Temperature in Blackton Reservoir today is 12.6°C.

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

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

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

There are no formal swimming facilities or lifeguards at Blackton Reservoir, so although people do occasionally swim there as unregulated shore-entry wild/open-water swimming, it can be dangerous and you should confirm access and ownership rules, heed any prohibition signs, and take appropriate safety precautions or obtain permission before entering the water.