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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, April: All Swell – Any Wind

This chart shows the combination of swells directed at Whitsand Bay and Tregantle through an average April, based on 2640 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind or surf right at the coastline so we have chosen the most applicable grid node based on what we know about Whitsand Bay and Tregantle. In this particular case the best grid node is 42 km away (26 miles).

The rose diagram illustrates the distribution of swell sizes and directions, while the graph at the bottom shows the same thing but 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 30% of the time. Green and yellow illustrate increasing swell sizes and red shows biggest 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 prevailing swell direction, shown by the largest spokes, was WSW, whereas the the prevailing wind blows from the NW. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from Whitsand Bay and Tregantle and offshore. We combine 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 Whitsand Bay and Tregantle, you can select a similar diagram that shows only the swells that were predicted to coincide with glassy or offshore wind conditions. In a typical April, swells large enough to cause surfable waves at Whitsand Bay and Tregantle run for about 70% 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.