Goldcliff — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Goldcliff (Wales, United Kingdom). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Goldcliff help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Goldcliff in the Celtic Sea today is 18°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
Currently, the sea water at this location is slightly warmer than average for this day in previous years.
According to our forecast, Water temperature in Goldcliff will be 17.0°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 15 | 18.6°C | 17.8°C | |
| SEP 16 | 18.7°C | 17.5°C | |
| SEP 17 | 18.2°C | 16.8°C | |
| SEP 18 | 18.5°C | 17.3°C | |
| SEP 19 | 18.7°C | 17.3°C | |
| SEP 20 | 18.4°C | 17.0°C | |
| SEP 21 | 18.4°C | 17.8°C | |
| SEP 22 | 18.4°C | 17.3°C | |
| SEP 23 | 18.2°C | 17.0°C | 18.2°C |
| SEP 24 | 17.0°C | 18.0°C | |
| SEP 25 | 17.0°C | 17.9°C | |
| SEP 26 | 16.8°C | 17.7°C | |
| SEP 27 | 16.3°C | 17.5°C | |
| SEP 28 | 16.5°C | 17.4°C | |
| SEP 29 | 16.5°C | 17.2°C | |
| SEP 30 | 16.0°C | 17.0°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.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Goldcliff is a small coastal village on the eastern edge of the Gwent Levels in Wales, bordering the Severn Estuary and characterised by mudflats, salt marshes and nature reserves. The estuarine location produces a wide seasonal range of water temperatures. In winter the water commonly falls to around 6–8 °C, rising through spring to roughly 8–13 °C. Summer sea temperatures are typically in the 14–18 °C band on warmer days, while autumn sees a gradual cooling back to about 10–15 °C. These values can vary year to year with tides, weather and longer-term climate patterns, and the shallow, sheltered nature of the marsh edges can warm or cool faster than open sea.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 6°C | 8°C | 11°C |
| February | 6°C | 8°C | 10°C |
| March | 6°C | 8°C | 10°C |
| April | 7°C | 9°C | 12°C |
| May | 9°C | 12°C | 15°C |
| June | 12°C | 14°C | 17°C |
| July | 14°C | 17°C | 20°C |
| August | 15°C | 18°C | 21°C |
| September | 15°C | 17°C | 20°C |
| October | 13°C | 15°C | 18°C |
| November | 10°C | 12°C | 15°C |
| December | 7°C | 9°C | 13°C |
* Click on a month to view detailed water temperature data.
Goldcliff: Weather Forecast
September 24
September 25
September 26
September 27
Location, Beaches & Local Information
Nearby Beaches & Facilities
Newport Seawall
Swimming Conditions
Opportunities for swimming at Goldcliff are limited and different from a conventional sandy beach holiday. The shoreline is dominated by mudflats and salt marsh rather than wide bathing sand, so access to clear swimming points is restricted and conditions can be unpredictable, with strong tides, shifting channels and extensive soft mud. There are no formal bathing facilities or regular lifeguard cover at the immediate site, so open-water swimming tends to suit experienced swimmers who are familiar with tidal behaviour and prepared for cold water—wetsuits are common when temperatures are in the 8–15 °C range. For visitors seeking a traditional beach holiday with easy entry, amenities and supervised water, more developed coastal resorts are a better option; Goldcliff is chiefly attractive for nature walks, birdwatching and tranquil shoreline experiences rather than mainstream bathing.