Newtown — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Newtown, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Newtown today is 12.3°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 16 | 13.8°C | 15.0°C | |
| SEP 17 | 13.1°C | 15.0°C | |
| SEP 18 | 12.9°C | 15.0°C | |
| SEP 19 | 13.3°C | 15.0°C | |
| SEP 20 | 12.9°C | 15.0°C | |
| SEP 21 | 13.5°C | 15.0°C | |
| SEP 22 | 12.9°C | 15.0°C | |
| SEP 23 | 12.3°C | 15.0°C | |
| SEP 24 | 15.0°C | 12.4°C | |
| SEP 25 | 15.0°C | 12.6°C | |
| SEP 26 | 15.0°C | 12.7°C | |
| SEP 27 | 15.0°C | 12.8°C | |
| SEP 28 | 15.0°C | 13.0°C | |
| SEP 29 | 15.0°C | 13.1°C | |
| SEP 30 | 15.0°C | 13.2°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 | 0°C | 3°C | 6°C |
| February | 0°C | 4°C | 7°C |
| March | 2°C | 6°C | 9°C |
| April | 6°C | 9°C | 12°C |
| May | 9°C | 15°C | 19°C |
| June | 11°C | 17°C | 22°C |
| July | 14°C | 18°C | 23°C |
| August | 14°C | 18°C | 23°C |
| September | 10°C | 15°C | 19°C |
| October | 8°C | 11°C | 14°C |
| November | 3°C | 6°C | 9°C |
| December | 0°C | 4°C | 7°C |
Newtown: Weather Forecast
September 23
September 24
September 25
September 26
September 27
Location & Local Information
Newtown, a charming market town in mid-Wales, sits along the upper course of the River Severn, where the water still has the freshness of its mountain origins. The Severn here is relatively narrow and fast-flowing, with clear, cool water that reflects the changing Welsh seasons. In winter, the temperature usually stays between 4 and 7°C (39–45°F), while in spring it slowly rises to around 9–12°C (48–54°F). During the warmest summer months, July and August, the river can reach 16–18°C (61–64°F) on sunny days, though shaded sections remain cooler. By early autumn, the water gradually cools back to around 12–14°C (54–57°F), keeping a refreshing character year-round.
Swimming in the River Severn near Newtown is possible but generally recommended only for experienced wild swimmers because of its cold water and occasional strong currents. Local enthusiasts often take short swims or paddle in calmer spots during summer, but wetsuits are advised for comfort and safety. For those preferring gentler recreation, riverside walks and kayaking are popular alternatives. Beyond the water, Newtown offers attractions such as Dolforwyn Castle, Pwll Penarth Nature Reserve, and a network of scenic trails that reveal the quiet beauty of the Welsh countryside.