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Caister-on-Sea ratings
Quality on a good day: 1.0
Consistency of Surf: 2.0
Difficulty Level: 1.0
Wind and Kite Surfing: 2.0
Crowds: 4.0

Overall: 2.8

See all 18 ratings

Based on 2 votes. Vote


Surf Report Feed

Caister-on-Sea Swell Statistics, Winter: All Swell – Any Wind

The figure describes the combination of swells directed at Caister-on-Sea through a typical northern hemisphere winter and is based upon 6930 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 Caister-on-Sea. In this particular case the best grid node is 22 km away (14 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 65% of the time. Green and yellow illustrate increasing swell sizes and red shows highest swells greater than >3m (>10ft). In each 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 biggest spokes, was N, whereas the the dominant wind blows from the WSW. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from Caister-on-Sea and offshore. We lump these in 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 Caister-on-Sea, you can load a different image that shows only the swells that were expected to coincide with glassy or offshore wind conditions. Over an average northern hemisphere winter, swells large enough to cause clean enough to surf waves at Caister-on-Sea run for about 15% 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.