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Wanjapu ratings
Quality on a good day: 4.0
Consistency of Surf: 4.0
Difficulty Level: 4.0
Crowds: 3.0

Overall: 4.0

See all 18 ratings

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Surf Report Feed

Wanjapu Swell Statistics, Summer: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Wanjapu that coincided with light winds or offshore conditions through a typical southern hemisphere summer. It is based on 8485 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 illustrate increasing swell sizes and red illustrates the biggest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell occurs.

The diagram implies that the prevailing swell direction, shown by the largest spokes, was SW, whereas the the prevailing wind blows from the W. 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 40% of the time, equivalent to 36 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal southern hemisphere summer but 13% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 13%, equivalent to (12 days). Taking into account the ratio of these swells that coincided with expected offshore winds, and given the fact that Wanjapu is exposed to open water swells, we calculate that clean surf can be found at Wanjapu about 40% of the time and that surf is messed up by onshore wind 60% of the time. This is means that we expect 91 days with waves in a typical southern hemisphere summer, of which 36 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.