Surf Forecast Surf Report
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Spanish Bay-Dunes Surf Stats

All swells

(any wind direction)

Good Surf

(light / offshore wind)

This image illustrates the range of swells directed at Spanish Bay-Dunes through an average March. It is based on 3460 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind and surf right at the coastline so we have chosen the optimum grid node based on what we know about Spanish Bay-Dunes, and at Spanish Bay-Dunes the best grid node is 14 km away (9 miles). The rose diagram shows the distribution of swell sizes and swell direction, while the graph at the bottom shows the same thing but without direction information. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. These occurred only 5% of the time. Green and yellow show increasing swell sizes and red illustrates largest swells greater than >3m (>10ft). In both graphs, 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 largest spokes, was WNW, whereas the the most common wind blows from the NW. Because the wave model grid is offshore, sometimes a strong offshore wind blows largest waves away from Spanish Bay-Dunes and away from the coast. We lump these in with the no surf category of the bar chart. To avoid confusion we don't show these in the rose diagram. Because wind determines whether or not waves are surfable at Spanish Bay-Dunes, you can load a different image that shows only the swells that were expected to coincide with glassy or offshore wind conditions. In a typical March, swells large enough to cause good for surfing waves at Spanish Bay-Dunes run for about 95% of the time.

Also see Spanish Bay-Dunes wind stats

Compare Spanish Bay-Dunes with another surf break

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