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Reading — Current Water Temperature, Annual Trends and Forecast

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

Reading, United Kingdom
Reading, United Kingdom © By Chris j wood, CC BY-SA 4.0

Current Water Temperature

12.9°C
Today
12.9°C
Yesterday
15.0°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Reading today is 12.9°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 313.9°C18.5°C
JUN 413.9°C18.5°C
JUN 513.9°C18.5°C
JUN 613.9°C18.5°C
JUN 712.9°C18.5°C
JUN 812.9°C18.5°C
JUN 1012.9°C18.5°C
JUN 1118.5°C13.2°C
JUN 1218.5°C13.5°C
JUN 1318.5°C13.7°C
JUN 1418.5°C14.0°C
JUN 1518.5°C14.3°C
JUN 1618.5°C14.6°C
JUN 1718.5°C14.9°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
January2°C6°C9°C
February3°C7°C9°C
March5°C9°C11°C
April7°C11°C14°C
May9°C14°C18°C
June12°C19°C24°C
July16°C20°C25°C
August15°C19°C24°C
September13°C18°C22°C
October9°C13°C16°C
November4°C8°C11°C
December3°C7°C9°C

Reading: Weather Forecast

June 9

° / °
light drizzle
rain: 73% | wind:

June 10

° / °
light drizzle
rain: 60% | wind:

June 11

° / °
slight rain
rain: 56% | wind:

June 12

° / °
overcast
rain: 14% | wind:

June 13

° / °
mainly clear
rain: 8% | wind:

Location & Local Information

Reading, a lively town in Berkshire, sits along one of the most attractive middle stretches of the River Thames. The river here flows at a moderate pace, surrounded by wooded banks and meadows that make it a popular spot for boating and riverside walks. Water temperatures in this area vary with the seasons but remain relatively mild for England. In winter, the Thames around Reading averages 5–7°C (41–45°F), staying cold and brisk. By spring, the water gradually warms to 10–13°C (50–55°F), and during the height of summer — July and August — temperatures often reach 18–21°C (64–70°F). In early autumn, the river cools back to around 13–15°C (55–59°F), maintaining a pleasant but refreshing feel.

Swimming in the River Thames at Reading is generally allowed, though it is best suited for confident swimmers who understand open-water conditions. The water quality is usually good, but care must be taken near locks and weirs where currents are stronger. Many residents enjoy wild swimming in quieter sections, especially around Mapledurham and Sonning, where the flow is gentle. For those who prefer to stay dry, the riverside paths, kayaking routes, and the town’s cultural attractions — including Reading Abbey ruins and Forbury Gardens — offer plenty of ways to enjoy the river’s peaceful setting.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Reading?
Water Temperature in Reading today is 12.9°C.
What is the water temperature in Reading during the summer months?
The water temperature in Reading in summer fluctuates in the range of 12°C - 25°C.
Is it possible to swim in Reading (United Kingdom) in River Thames and what are the possibilities for this?
Swimming in Reading's stretch of the River Thames is possible but not universally advised for casual bathers, as there are informal wild‑swim spots, organised club swims and occasional supervised events available while you should avoid weirs and busy boating areas, check recent water quality and local signage, swim with others or under supervision, and consider local pools or lidos for a safer, regulated alternative.