Trevone Bay Surf Break

Lat Long: 50.55° N 4.98° W

Trevone Bay Sea Temperature and Wetsuit Guide

Issued: 12 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trevone Bay sea temperature is
18.4° C
1.7° 

Trevone Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Trevone Bay sea temperature is 18.4 °C

(1.7° warmer than normal for this time of year)

Mean: 16.7 °C
Range: 14.8 °C to 18.4 °C
Statistics for 05 Aug (1981–2005)

    Today, many surfers would wear a summer wetsuit.

    The water temperature (18 °C) at Trevone Bay is relatively warm. If the sun does come out as forecast, it should feel warm enough to surf in a summer wetsuit. Effective air temperature of 16 °C.

    United Kingdom Sea Water Temperature

    Map of current United Kingdom
    Surface Water Temperatures

    (based on measurements from oceanographic satellites)
    United Kingdom Water Temperature Anomaly

    Map of current United Kingdom
    Sea Water Temperature Anomalies

    (compared with long term averages
    at this time of year)

    click thumbnails to expand

    Below is a graph of Historical Sea Surface Temperature for Trevone Bay. 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.

    Trevone Bay Water Temperature Graph

    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.

    Trevone Bay water temperatures peak in the range 15 to 18°C (59 to 64°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 highest seasonal water temperatures at Trevone Bay 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 water temperatures at Trevone Bay 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 Trevone Bay 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 Trevone Bay. Refer to our detailed weather forecasts for this information.

    Nearest locationNearest