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Castles ratings
Quality on a good day: 2.5
Consistency of Surf: 2.0
Difficulty Level: 3.0
Wind and Kite Surfing: 4.0
Crowds: 3.5

Overall: 3.1

See all 18 ratings

Based on 3 votes. Vote


Surf Report Feed

Castles Swell Statistics, August: Surf with Light or Offshore Winds

This image shows only the swells directed at Castles that coincided with light winds or offshore conditions over a normal August. It is based on 2480 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 show increasing swell sizes and largest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how often that size swell was forecast.

The diagram indicates that the dominant swell direction, shown by the largest spokes, was ENE (which was the same as the most common wind direction). 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 43% of the time, equivalent to 13 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal August but 7% of the time we expect swell in the range 2-3m (6.5-10ft) 7%, equivalent to (2 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Castles is exposed to open water swells, we think that that clean surf can be found at Castles about 43% of the time and that surf is messed up by onshore wind 10% of the time. This is means that we expect 16 days with waves in a typical August, of which 13 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.