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Church Bay ratings
Quality on a good day: 1.0
Consistency of Surf: 2.0

Overall: 2.7

See all 18 ratings

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Surf Report Feed

Church Bay Swell Statistics, December: Surf with Light or Offshore Winds

This image shows only the swells directed at Church Bay that coincided with light winds or offshore conditions through a typical December. It is based on 1961 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 represent increasing swell sizes and red shows the highest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how frequently that size swell happens.

The diagram suggests that the dominant swell direction, shown by the longest spokes, was NNW, whereas the the dominant 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 December. Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Church Bay is slightly protected from open water swells, we think that that clean surf can be found at Church Bay about 0% of the time and that surf is spoilt by onshore wind 18% of the time. This is means that we expect 5 days with waves in a typical December, 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.