Tahunanui Beach Surf Break

Lat Long: 41.28° S 173.24° E

Tahunanui Beach Sea Temperature and Wetsuit Guide

Issued: 5 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Tahunanui Beach sea temperature is
13.4°C
1.0° 

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

Today's Tahunanui Beach sea temperature is 13.4 °C

(1.0° warmer than normal for this time of year)

Mean: 12.4 °C
Range: 11.2 °C to 13.8 °C
Statistics for 21 Sep (1981–2005)

    Today, many surfers would wear a spring wetsuit.

    The water temperature (13 °C) at Tahunanui Beach is quite cool. If the sun shines as we have forecast, it should feel warm enough to surf in a good spring wetsuit. Effective windchill factor of (18 °C) will make the air and water feel about the same temperature.

    New Zealand Sea Water Temperature

    Map of current New Zealand
    Surface Water Temperatures

    (based on measurements from oceanographic satellites)
    New Zealand Water Temperature Anomaly

    Map of current New Zealand
    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 Tahunanui Beach. 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.

    Tahunanui Beach 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.

    Tahunanui water temperatures peak in the range 16 to 19°C (61 to 66°F) on around the 7th of February and are at their coldest on about the 21st of August, in the range 11 to 13°C (52 to 55°F). The warmest seasonal water temperatures at Tahunanui in the first part of February lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The coldest water temperatures at Tahunanui in mid to late August are ideally suited to a 4/3mm wetsuit + 3mm boots, although a 5/3mm wetsuit may be preferable for longer sessions and cold windy days.

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

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