River Avon Bristol — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the River Avon Bristol, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the River Avon Bristol today is 11.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. 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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 3 | 11.4°C | 18.0°C | |
| JUN 4 | 11.4°C | 18.0°C | |
| JUN 5 | 11.4°C | 18.0°C | |
| JUN 6 | 11.4°C | 18.0°C | |
| JUN 7 | 11.4°C | 18.0°C | |
| JUN 8 | 11.4°C | 18.0°C | |
| JUN 10 | 11.4°C | 18.0°C | |
| JUN 11 | 18.0°C | 11.7°C | |
| JUN 12 | 18.0°C | 12.1°C | |
| JUN 13 | 18.0°C | 12.4°C | |
| JUN 14 | 18.0°C | 12.7°C | |
| JUN 15 | 18.0°C | 13.1°C | |
| JUN 16 | 18.0°C | 13.4°C | |
| JUN 17 | 18.0°C | 13.7°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 | 2°C | 6°C | 9°C |
| February | 3°C | 7°C | 9°C |
| March | 5°C | 9°C | 11°C |
| April | 7°C | 11°C | 14°C |
| May | 8°C | 14°C | 18°C |
| June | 11°C | 18°C | 24°C |
| July | 16°C | 20°C | 25°C |
| August | 15°C | 19°C | 24°C |
| September | 13°C | 18°C | 22°C |
| October | 9°C | 13°C | 16°C |
| November | 5°C | 9°C | 11°C |
| December | 3°C | 7°C | 9°C |
River Avon Bristol: Water Temperature by Location
River Avon Bristol: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Source Didmarton
• location Gloucestershire, England
• coordinates 51°31′49″N 2°16′26″W
• elevation 120 m (390 ft)
Mouth Severn Estuary
• location Avonmouth, Bristol, England
• coordinates 51°30′22″N 2°43′06″W
Length 134 km (83 mi)
The River Avon near Bristol flows through a broad, winding valley before meeting the Severn Estuary, carrying a mix of freshwater and tidal influence. Its temperature reflects the mild but variable climate of southwest England, with gradual seasonal changes. During winter, the water usually ranges between 4 and 6°C (39–43°F), staying cool and often fast-moving after rainfall. By spring, it rises to about 9–12°C (48–54°F), while in midsummer—especially in July and August—the Avon can reach 17–20°C (63–68°F) in calm, sheltered sections. As autumn arrives, temperatures slowly fall back to around 12–14°C (54–57°F), maintaining a refreshing feel through much of the year.
Swimming in the River Avon near Bristol is possible but should be approached with care. The lower stretches are tidal, and the current can change quickly, making it suitable only for experienced wild swimmers who understand the conditions. In calmer upstream areas, such as near Saltford or Keynsham, the water is clearer and safer for summer swimming. Many residents enjoy kayaking or paddleboarding along the river’s scenic banks instead. The Avon Gorge, with its dramatic cliffs and views of the Clifton Suspension Bridge, adds a striking backdrop to the river, while nearby trails and parks offer further opportunities for recreation and relaxation.