Today's Blacks Reef sea temperature is 15.2 °C
(Normal for this time of year (within 0.1° of average))
| Mean: | 15.1 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 13.8 °C to 16.8 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 02 Nov (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a spring wetsuit.
Sunny with pleasantly warm air temperatures (feels like 20 °C) at Blacks Reef, yet the sea remains several degrees colder than the air. Most surfers will need a spring wetsuit though a summer suit or even a shorty may suffice for a short session.
 Map of current New Zealand Surface Water Temperatures (based on measurements from oceanographic satellites) |  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 Blacks Reef. 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.
Blacks Reef sea water temperatures peak in the range 18 to 21°C (64 to 70°F) on around the 9th of February and are at their minimum on about the 24th of August, in the range 13 to 14°C (55 to 57°F). The warmest Blacks Reef sea water temperatures in early to mid February require something like a 3/2mm fully sealed wetsuit. The minimum sea water temperatures at Blacks Reef in the fourth week of 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 Blacks Reef 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 Blacks Reef. Refer to our detailed weather forecasts for this information.
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