uk es it fr pt nl
Shipwreck Bay-Supertubes ratings
Quality on a good day: 4.0
Consistency of Surf: 4.0
Difficulty Level: 3.0
Wind and Kite Surfing: 2.0
Crowds: 2.7

Overall: 4.2

See all 18 ratings

Based on 4 votes. Vote


Surf Report Feed

Shipwreck Bay-Supertubes Swell Statistics, March: Surf with Light or Offshore Winds

This image shows only the swells directed at Shipwreck Bay-Supertubes that coincided with light winds or offshore conditions over a normal March. It is based on 2964 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. Green and yellow represent increasing swell sizes and red represents biggest swells greater than >3m (>10ft). In each graph, the area of any colour is proportional to how frequently that size swell occurs.

The diagram suggests that the prevailing swell direction, shown by the longest spokes, was SW, whereas the the prevailing wind blows from the SE. The chart at the bottom shows the same thing but without direction information. For example, swells larger than 1.5 feet (0.5m) coincided with good wind conditions 28% of the time, equivalent to 9 days. Expect open water swells to exceed >3m (>10ft) 5% of the time (2 days). Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Shipwreck Bay-Supertubes is quite sheltered from open water swells, we estimate that clean surf can be found at Shipwreck Bay-Supertubes about 28% of the time and that surf is blown out by onshore wind 18% of the time. This is means that we expect 14 days with waves in a typical March, of which 9 days should be surfable.

IMPORTANT: Beta version feature! Swell heights are open water values from NWW3. There is no attempt to model near-shore effects. Coastal wave heights will generally be less, especially if the break does not have unobstructed exposure to the open ocean.