Martinhal Surf Break
Lat Long: 37.02° N 8.93° W

Martinhal Sea Temperature and Wetsuit Guide

Weather Forecast for Martinhal

Issued: 12 am 05 Jun 2026 (local time)

Forecast update in  hr  min

Today's Martinhal sea temperature is
18.5° C

Normal for this time of year

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

Today's Martinhal sea temperature is 18.5 °C

(Normal for this time of year)

Mean: 18.9 °C
Range: 17.5 °C to 19.7 °C
Statistics for 05 Jun (1981–2005)

    Today, many surfers would wear a summer wetsuit.

    The water temperature (18 °C) at Martinhal 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 14 °C.

    Portugal Sea Water Temperature

    Map of current Portugal
    Surface Water Temperatures

    (based on measurements from oceanographic satellites)
    Portugal Water Temperature Anomaly

    Map of current Portugal
    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 Martinhal. 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.

    Martinhal 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.

    Martinhal sea water temperatures peak in the range 21 to 23°C (70 to 73°F) on around the 15th of August and are at their coldest on about the 24th of February, in the range 15 to 17°C (59 to 63°F). Martinhal sea water temperatures are highest in mid August. Surfers should use a 2mm long sleeve shorty or a 3/2mm spring wetsuit if the wind is up. The coldest seasonal sea water temperatures at Martinhal in the fourth week of February lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots.

    Actual sea surface water temperatures close to shore at Martinhal 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 Martinhal. Refer to our detailed weather forecasts for this information.

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