Lake Abereiddi Blue Lagoon — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Abereiddi Blue Lagoon, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Abereiddi Blue Lagoon today is 12.9°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 |
|---|---|---|---|
| OCT 7 | 14.1°C | 15.0°C | |
| OCT 8 | 14.3°C | 15.0°C | |
| OCT 9 | 13.9°C | 15.0°C | |
| OCT 10 | 13.6°C | 15.0°C | |
| OCT 11 | 13.5°C | 15.0°C | |
| OCT 12 | 13.6°C | 15.0°C | |
| OCT 13 | 12.9°C | 15.0°C | |
| OCT 14 | 12.9°C | 15.0°C | |
| OCT 15 | 15.0°C | 13.0°C | |
| OCT 16 | 15.0°C | 13.1°C | |
| OCT 17 | 15.0°C | 13.2°C | |
| OCT 18 | 15.0°C | 13.3°C | |
| OCT 19 | 15.0°C | 13.4°C | |
| OCT 20 | 15.0°C | 13.5°C | |
| OCT 21 | 15.0°C | 13.6°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 | 3°C | 7°C | 10°C |
| February | 4°C | 8°C | 11°C |
| March | 6°C | 10°C | 13°C |
| April | 9°C | 13°C | 17°C |
| May | 11°C | 17°C | 22°C |
| June | 14°C | 22°C | 28°C |
| July | 17°C | 23°C | 29°C |
| August | 17°C | 23°C | 28°C |
| September | 16°C | 21°C | 26°C |
| October | 11°C | 15°C | 19°C |
| November | 6°C | 10°C | 13°C |
| December | 4°C | 8°C | 11°C |
Lake Abereiddi Blue Lagoon: Water Temperature by Location
Lake Abereiddi Blue Lagoon: Weather Forecast
October 15
October 16
October 17
October 18
Location & Local Information
The Abereiddi Blue Lagoon, a flooded former slate quarry on the Pembrokeshire coast, is a popular and permitted spot for wild swimming. As it’s an ocean-fed pool, its temperature reflects that of the Atlantic, meaning it remains chilly year-round, even in summer. The water is typically between 8∘C (46∘F) in winter and a maximum of about 16∘C to 18∘C (61∘F to 64∘F) during peak summer months, making a wetsuit advisable for most.
Swimming is allowed here, and the lagoon's sheltered nature, surrounded by high cliffs, keeps the water calmer than the open sea, which makes it attractive for confident swimmers, coasteering groups, and kayakers. Visitors should note that the lagoon is very deep, around 25 meters. A key nearby attraction is the picturesque former fishing village of Porthgain, just a short walk along the Pembrokeshire Coast Path, which offers a pub and art galleries. The lagoon is sometimes closed to the public in autumn to protect breeding seals.