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 19.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUL 16 | 20.1°C | 19.3°C | |
| JUL 17 | 20.0°C | 19.3°C | |
| JUL 18 | 19.9°C | 19.3°C | |
| JUL 19 | 19.9°C | 19.3°C | |
| JUL 20 | 19.9°C | 19.3°C | |
| JUL 21 | 19.7°C | 19.3°C | |
| JUL 22 | 19.7°C | 19.3°C | |
| JUL 23 | 19.7°C | 19.3°C | |
| JUL 24 | 19.3°C | 19.7°C | |
| JUL 25 | 19.3°C | 19.7°C | |
| JUL 26 | 19.3°C | 19.6°C | |
| JUL 27 | 19.3°C | 19.6°C | |
| JUL 28 | 19.3°C | 19.6°C | |
| JUL 29 | 19.3°C | 19.6°C | |
| JUL 30 | 19.3°C | 19.6°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 | 13°C | 19°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
July 23
July 24
July 25
July 26
July 27
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.