Aberdyfi — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Aberdyfi (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 Aberdyfi help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Aberdyfi 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
Water temperature in Aberdyfi rose over the last 30 days but fell over the last week. 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 Aberdyfi will be 16.7°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 |
|---|---|---|---|
| JUN 27 | 19.6°C | 13.8°C | |
| JUN 28 | 19.6°C | 14.5°C | |
| JUN 29 | 19.2°C | 14.3°C | |
| JUN 30 | 18.7°C | 16.5°C | |
| JUL 1 | 18.5°C | 16.0°C | |
| JUL 2 | 18.7°C | 16.3°C | |
| JUL 3 | 18.6°C | 16.0°C | |
| JUL 4 | 18.4°C | 16.0°C | |
| JUL 5 | 18.3°C | 16.0°C | 18.3°C |
| JUL 6 | 15.5°C | 18.1°C | |
| JUL 7 | 15.3°C | 17.8°C | |
| JUL 8 | 15.0°C | 17.6°C | |
| JUL 9 | 15.0°C | 17.4°C | |
| JUL 10 | 15.3°C | 17.2°C | |
| JUL 11 | 16.0°C | 16.9°C | |
| JUL 12 | 15.8°C | 16.7°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
Aberdyfi (Aberdovey) sits on the southern edge of Cardigan Bay where the Dyfi estuary meets the Irish Sea, giving its waters a mix of coastal and sheltered estuarine characteristics. Sea temperatures around Aberdyfi follow the typical western Wales pattern: winter waters commonly register about 6–8 °C, spring sees a gradual rise to roughly 7–12 °C, summer usually ranges between 12–18 °C with occasional brief peaks near 19 °C in warm years, and autumn cools again to around 10–15 °C. Local conditions are influenced by tides, wind and river flow, so shallow estuary areas warm up faster than the open bay. Seasonal weather variability means temperatures can change noticeably from one week to the next.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 7°C | 9°C | 11°C |
| February | 6°C | 8°C | 10°C |
| March | 6°C | 8°C | 10°C |
| April | 7°C | 9°C | 11°C |
| May | 9°C | 11°C | 14°C |
| June | 11°C | 14°C | 17°C |
| July | 13°C | 16°C | 20°C |
| August | 14°C | 17°C | 19°C |
| September | 14°C | 16°C | 19°C |
| October | 12°C | 15°C | 17°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.
Aberdyfi: Weather Forecast
July 6
July 7
July 8
Location, Beaches & Local Information
Nearby Beaches & Facilities
Aberdyfi Beach
Ynyslas
Ynyslas Beach
Borth Beach
Tywyn Beach
Wallog Beach
Swimming Conditions
Swimming around Aberdyfi offers options for both sheltered and open-water experiences, from calmer estuary paddles to sea swims off the wide sandy beach. The long gently shelving shore is suited to families and less confident swimmers at low wind, while the open bay provides more challenging conditions preferred by experienced sea swimmers and water-sports enthusiasts. Visitors should be aware of tidal movements, currents and sudden weather changes and consider a wetsuit outside the warmest weeks; many people find a 3–5 mm or thicker suit comfortable for much of the year. Checking local advice about conditions and any seasonal patrols or launch activities helps ensure a safer beach holiday.