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Aan ratings
Quality on a good day: 2.0
Consistency of Surf: 2.0
Crowds: 4.0

Overall: 3.0

See all 18 ratings

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Surf Report Feed

Aan Swell Statistics, Spring: Surf with Light or Offshore Winds

This image shows only the swells directed at Aan that coincided with light winds or offshore conditions through a typical southern hemisphere spring and is based upon 8724 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. Green and yellow show increasing swell sizes and red represents the highest 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 dominant swell direction, shown by the longest spokes, was SW, whereas the the dominant wind blows from the S. 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 15% of the time, equivalent to 14 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal southern hemisphere spring but 5% of the time we expect swell in the range 2-3m (6.5-10ft) 5%, equivalent to (5 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Aan is slightly protected from open water swells, we think that that clean surf can be found at Aan about 15% of the time and that surf is messed up by onshore wind 77% of the time. This is means that we expect 84 days with waves in a typical southern hemisphere spring, of which 14 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.