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Porthtowan ratings
Quality on a good day: 3.8
Consistency of Surf: 3.2
Difficulty Level: 2.8
Wind and Kite Surfing: 2.0
Crowds: 2.7

Overall: 2.4

See all 18 ratings

Based on 5 votes. Vote


Surf Report Feed

Porthtowan Surf Stats

All swells

(any wind direction)
Porthtowan.surf.statistics.aprilWnw.animatedWnw.label.animated

Good Surf

(light / offshore wind)

This chart describes the range of swells directed at Porthtowan through an average April. It is based on 3360 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 best grid node based on what we know about Porthtowan, and at Porthtowan the best grid node is 30 km away (19 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 represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. These occurred only 15% of the time. Green and yellow show increasing swell sizes and highest 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 was forecast. The diagram indicates that the most common swell direction, shown by the biggest spokes, was W, whereas the the dominant wind blows from the NNE. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Porthtowan and out to sea. We combine these with the no surf category of the bar chart. To simplify things we don't show these in the rose diagram. Because wind determines whether or not waves are good for surfing at Porthtowan, you can select a similar diagram that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. In a typical April, swells large enough to cause clean enough to surf waves at Porthtowan run for about 52% of the time.

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Also see Porthtowan wind stats

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