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Whitsand Bay and Tregantle ratings
Quality on a good day: 3.0
Consistency of Surf: 2.0
Difficulty Level: 2.7
Wind and Kite Surfing: 2.5
Crowds: 2.0

Overall: 2.3

See all 18 ratings

Based on 3 votes. Vote


Surf Report Feed

Whitsand Bay and Tregantle Swell Statistics, Winter: All Swell – Any Wind

This picture illustrates the variation of swells directed at Whitsand Bay and Tregantle over a normal northern hemisphere winter, based on 7765 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast wind or surf right at the coastline so we have chosen the optimum grid node based on what we know about Whitsand Bay and Tregantle, and at Whitsand Bay and Tregantle the best grid node is 42 km away (26 miles).

The rose diagram describes the distribution of swell sizes and directions, while the graph at the bottom shows the same thing without direction information. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. These occurred only 18% of the time. Green and yellow illustrate increasing swell sizes and red represents largest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how frequently that size swell occurs.

The diagram suggests that the most common swell direction, shown by the largest spokes, was WSW (which was the same as the most common wind direction). Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Whitsand Bay and Tregantle and out to sea. We lump these in with the no surf category of the bar chart. To simplify things we don't show these in the rose plot. Because wind determines whether or not waves are good for surfing at Whitsand Bay and Tregantle, you can select a similar diagram that shows only the swells that were expected to coincide with glassy or offshore wind conditions. During a typical northern hemisphere winter, swells large enough to cause clean enough to surf waves at Whitsand Bay and Tregantle run for about 82% 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.