Surf Break

Lat Long: 21.08° S 175.34° W

The Peak Sea Temperature and Wetsuit Guide

Issued: 6 pm 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Peak sea temperature is
23.0°C
0.3° 

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

Today's The Peak sea temperature is 23.0 °C

(Normal for this time of year (within 0.3° of average))

Mean: 23.3 °C
Range: 22.1 °C to 24.6 °C
Statistics for 25 Sep (1981–2005)

    Today, many surfers would wear a summer wetsuit.

    The The Peak water temperature is warm (23 °C) and the air temperature not too different (windchill forecast 19 °C). A good quality summer wetsuit would be ideal though a shorty will suffice.

    Tonga Sea Water Temperature

    Map of current Tonga
    Surface Water Temperatures

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

    Map of current Tonga
    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 The Peak. 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.

    The Peak 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.

    The Peak water temperatures peak in the range 28 to 29°C (82 to 84°F) on around the 1st of March and are at their coldest on about the 21st of August, in the range 22 to 24°C (72 to 75°F). Year round warm water temperatures at The Peak climb to their maximum at the beginning of March. Even then a rash vest and board shorts should be fine for surfing at any time of year. The Peak water temperatures are always warm but dip to their coldest in mid to late August. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy.

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

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