This image shows only the swells directed at Ramsgate (The Wall) that coincided with light winds or offshore conditions over a normal July and is based upon 1240 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 illustrate increasing swell sizes and largest swells greater than >3m (>10ft) are shown in red. In each graph, the area of any colour is proportional to how often that size swell happens.
The diagram indicates that the dominant swell direction, shown by the biggest spokes, was WSW, whereas the the most common wind blows from the WSW. 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 0% of the time, equivalent to 0 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal July. Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Ramsgate (The Wall) is quite sheltered from open water swells, we think that that clean surf can be found at Ramsgate (The Wall) about 0% of the time and that surf is spoilt by onshore wind 0% of the time. This is means that we expect 0 days with waves in a typical July, of which 0 days should be clean enough to surf.
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.