uk es it fr pt nl
Chart House Rights ratings
Quality on a good day: 2.0
Consistency of Surf: 2.0
Difficulty Level: 4.0
Crowds: 4.0

Overall: 3.2

See all 18 ratings

Based on 1 vote. Vote


Surf Report Feed

Chart House Rights Swell Statistics, May: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Chart House Rights that coincided with light winds or offshore conditions over a normal May. It is based on 2696 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 highest swells greater than >3m (>10ft) are shown in red. In both graphs, the area of any colour is proportional to how frequently that size swell was forecast.

The diagram suggests that the prevailing swell direction, shown by the biggest spokes, was SSW, whereas the the dominant wind blows from the SW. 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 37% of the time, equivalent to 11 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal May. Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Chart House Rights is exposed to open water swells, we calculate that clean surf can be found at Chart House Rights about 37% of the time and that surf is messed up by onshore wind 51% of the time. This is means that we expect 27 days with waves in a typical May, of which 11 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.