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North Myrtle/27th Avenue South ratings
Quality on a good day: 2.2
Consistency of Surf: 3.7
Difficulty Level: 2.0
Wind and Kite Surfing: 2.2
Crowds: 2.3

Overall: 3.1

See all 18 ratings

Based on 6 votes. Vote


Surf Report Feed

North Myrtle/27th Avenue South Swell Statistics, September: All Swell – Any Wind

The figure describes the combination of swells directed at North Myrtle/27th Avenue South over a normal September, based on 2400 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast wind or surf right at the coast so we have chosen the optimum grid node based on what we know about North Myrtle/27th Avenue South. In this particular case the best grid node is 39 km away (24 miles).

The rose diagram illustrates the distribution of swell sizes and swell direction, while the graph at the bottom shows the same thing without direction information. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. These were forecast only 26% of the time. Green and yellow represent increasing swell sizes and highest swells greater than >3m (>10ft) are shown in red. 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 biggest spokes, was SE, whereas the the dominant wind blows from the E. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from North Myrtle/27th Avenue South and offshore. We group these with the no surf category of the bar chart. To simplify things we don't show these in the rose graph. Because wind determines whether or not waves are clean enough to surf at North Myrtle/27th Avenue South, you can load a different image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. During a typical September, swells large enough to cause surfable waves at North Myrtle/27th Avenue South run for about 74% of the time.

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.