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Cannibal Bay ratings
Quality on a good day: 4.5
Consistency of Surf: 3.5
Difficulty Level: 2.5
Crowds: 4.5
Camping: 3.0

Overall: 3.5

See all 18 ratings

Based on 2 votes. Vote


Surf Report Feed

Cannibal Bay Swell Statistics, December: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Cannibal Bay that coincided with light winds or offshore conditions through a typical December. It is based on 2457 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 show increasing swell sizes and red illustrates highest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how frequently that size swell was forecast.

The diagram suggests that the prevailing swell direction, shown by the biggest spokes, was S, whereas the the dominant wind blows from the WNW. 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 24% of the time, equivalent to 7 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal December but 8% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 8%, equivalent to (2 days). Taking into account the proportion of these swells that coincided with expected offshore winds, and given the fact that Cannibal Bay is exposed to open water swells, we calculate that clean surf can be found at Cannibal Bay about 24% of the time and that surf is spoilt by onshore wind 37% of the time. This is means that we expect 18 days with waves in a typical December, of which 7 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.