Afon Lwyd River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Afon Lwyd River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Afon Lwyd River today is 19.3°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 15 | 19.5°C | 19.1°C | |
| JUL 16 | 19.5°C | 19.1°C | |
| JUL 17 | 19.3°C | 19.1°C | |
| JUL 18 | 19.3°C | 19.1°C | |
| JUL 19 | 19.3°C | 19.1°C | |
| JUL 20 | 19.3°C | 19.1°C | |
| JUL 21 | 19.3°C | 19.1°C | |
| JUL 22 | 19.3°C | 19.1°C | |
| JUL 23 | 19.1°C | 19.3°C | |
| JUL 24 | 19.1°C | 19.3°C | |
| JUL 25 | 19.1°C | 19.3°C | |
| JUL 26 | 19.1°C | 19.3°C | |
| JUL 27 | 19.1°C | 19.3°C | |
| JUL 28 | 19.1°C | 19.2°C | |
| JUL 29 | 19.1°C | 19.2°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 | 10°C | 17°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 |
Afon Lwyd River: Water Temperature by Location
Afon Lwyd River: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
The Afon Lwyd, a river flowing through the Eastern Valleys of South Wales, maintains characteristically cold water temperatures typical of inland British rivers. Seasonal fluctuations mean that in the deepest parts of winter, from December to February, the water temperature is often chillingly low, usually ranging from 4∘C to 7∘C (39∘F to 45∘F). During the warmer summer months, its temperature rarely exceeds a cool 16∘C to 18∘C (61∘F to 64∘F), making it a significant risk for cold water shock even in July.
Swimming in the Afon Lwyd is generally not recommended or officially permitted due to various dangers. The river is prone to flash flooding, particularly after heavy rainfall, turning quickly into a fast-flowing torrent. Hazards also include sudden depth changes, submerged objects, and potential water quality issues from urban runoff. Instead of swimming, the river is best appreciated alongside the Afon Lwyd Trail, a picturesque, traffic-free route perfect for walking and cycling. Nearby attractions include the Blaenavon World Heritage Site and the industrial history of the Big Pit National Coal Museum.