Today's Marloes Sands sea temperature is 13.0 °C
(Normal for this time of year)
| Mean: | 12.8 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 11.7 °C to 14.3 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 09 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a spring wetsuit, a neoprene hood, gloves and boots.
The water temperature (13 °C) at Marloes Sands is fairly cool. Despite the sun, a windchill factor of (9 °C) means that surfers will need a good quality spring wetsuit, a neoprene hood. Some surfers would wear gloves and boots.
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Below is a graph of Historical Sea Surface Temperature for Marloes Sands. This has been derived from analysis of two decades of oceanographic satellite measurements of nearby open water. We have calculated the average water temperature variation around the year as well as the extremes that have been observed on each date.

All of the graphs for the surf breaks presented on Surf-Forecast.com are on the same scale to enable comparison between locations around the world.
Marloes Sands water temperatures peak in the range 14 to 18°C (57 to 64°F) on around the 13th of August and are at their coldest on about the 28th of February, in the range 7 to 9°C (45 to 48°F). The maximum seasonal water temperatures at Marloes Sands in the third week of August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The coldest water temperatures at Marloes Sands mean that you will need a flexible 6/5/4mm wetsuit or a well fitting 5/4mm wetsuit with gloves and 5mm neoprene booties and a hood to surf here in the fourth week of February.
Actual sea surface water temperatures close to shore at Marloes Sands can vary by several degrees compared with these open water averages. This is especially true after heavy rain, close to river mouths or after long periods of strong offshore winds. Offshore winds cause colder deep water to replace surface water that has been warmed by the sun. Air temperature, wind-chill and sunshine should also be considered before deciding on the kind of wetsuit needed to stay warm when surfing at Marloes Sands. Refer to our detailed weather forecasts for this information.


