Mounts Bay (Penzance) Water Temperature and Wetsuit Guide
(South Cornwall, UK)
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Today's Mounts Bay (Penzance) sea temperature is 12.4 °C
(Which is 1.0°C warmer than normal for this time of year)
| Mean: | 11.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 10.0 °C to 12.9 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 07 May (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a winter wetsuit, a neoprene hood, gloves and boots.
The water temperature (12 °C) at Mounts Bay (Penzance) is fairly cold. Surfers will need a quality steamer wetsuit, a neoprene hood, gloves and boots because it will be cloudy with an effective air temperature of (9 °C).
(click thumbnails to expand)
Below is a graph of Historical Sea Surface Temperature for Mounts Bay (Penzance). 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.
Mounts Bay (Penzance) sea water temperatures peak in the range 15 to 19°C (59 to 66°F) on around the 10th of August and are at their coldest on about the 1st of March, in the range 9 to 10°C (48 to 50°F). The warmest seasonal sea water temperatures at Mounts Bay (Penzance) in early to mid August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. At its coldest at the beginning of March, low sea water temperatures at Mounts Bay (Penzance) are suited to a 5/4mm or 5/3mm good quality wetsuit with neoprene gloves and 3mm boots. You will need a hood if it's windy or the air is cold.
Actual sea surface water temperatures close to shore at Mounts Bay (Penzance) 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 Mounts Bay (Penzance). Refer to our detailed weather forecasts for this information.



