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Surf Break Rating

Rate Zoo (Bull Bay)


Surf Report Feed

Zoo (Bull Bay) Swell Statistics, All Year: Surf with Light or Offshore Winds

This image shows only the swells directed at Zoo (Bull Bay) that coincided with light winds or offshore conditions through a typical year. It is based on 33260 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. Green and yellow represent increasing swell sizes and largest swells greater than >3m (>10ft) are shown in red. In both graphs, the area of any colour is proportional to how frequently that size swell occurs.

The diagram suggests that the most common swell direction, shown by the longest spokes, was SE, whereas the the most common wind blows from the ENE. 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 6% of the time, equivalent to 22 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal year but 1.2% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 1.2%, equivalent to (4 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Zoo (Bull Bay) is exposed to open water swells, we think that that clean surf can be found at Zoo (Bull Bay) about 6% of the time and that surf is messed up by onshore wind 78% of the time. This is means that we expect 307 days with waves in a typical year, of which 22 days should be clean enough to surf.

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.