Portadown — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Portadown, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Portadown today is 8.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing 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 |
|---|---|---|---|
| OCT 28 | 8.9°C | 11.0°C | |
| OCT 29 | 9.7°C | 11.0°C | |
| OCT 30 | 9.5°C | 11.0°C | |
| OCT 31 | 9.2°C | 11.0°C | |
| NOV 1 | 9.1°C | 7.0°C | |
| NOV 2 | 9.6°C | 7.0°C | |
| NOV 3 | 9.6°C | 7.0°C | |
| NOV 4 | 8.9°C | 7.0°C | |
| NOV 5 | 7.0°C | 8.8°C | |
| NOV 6 | 7.0°C | 8.7°C | |
| NOV 7 | 7.0°C | 8.6°C | |
| NOV 8 | 7.0°C | 8.5°C | |
| NOV 9 | 7.0°C | 8.4°C | |
| NOV 10 | 7.0°C | 8.3°C | |
| NOV 11 | 7.0°C | 8.2°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 | 4°C | 7°C |
| February | 0°C | 4°C | 7°C |
| March | 2°C | 6°C | 9°C |
| April | 5°C | 8°C | 12°C |
| May | 9°C | 13°C | 18°C |
| June | 13°C | 18°C | 22°C |
| July | 14°C | 18°C | 23°C |
| August | 14°C | 18°C | 23°C |
| September | 11°C | 16°C | 20°C |
| October | 8°C | 11°C | 14°C |
| November | 4°C | 7°C | 10°C |
| December | 0°C | 4°C | 8°C |
Portadown: Weather Forecast
November 5
November 6
November 7
November 8
November 9
Location & Local Information
Portadown is a major town in County Armagh, defined by its position on the River Bann, which connects it to Lough Neagh. The water temperature in the River Bann, being a slow-moving, large river system, shows a noticeable seasonal shift. In the colder months, the water typically registers around 5 to 9∘C (41 to 48∘F), making for a bracing environment. During the peak of summer, surface temperatures in this area can warm up considerably, often reaching 15 to 19∘C (59 to 66∘F), though this depends entirely on the ambient air temperature and sunshine.
Swimming in the River Bann at Portadown is generally discouraged and can be risky. While open-water swimming is not strictly banned everywhere, this stretch of the river is a navigation channel, meaning it is frequented by boats, which poses a safety hazard. Furthermore, like many urban rivers, the water quality can be unpredictable, making it unsafe for recreational bathing. Visitors seeking attractions can explore the nearby Moneypenny’s Lock, a historic former navigation lock on the river, or take a short drive to the popular Oxford Island Nature Reserve on the shores of Lough Neagh.