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Clarence River ratings
Quality on a good day: 3.0
Consistency of Surf: 4.0
Crowds: 4.0

Overall: 3.8

See all 18 ratings

Based on 2 votes. Vote


Surf Report Feed

Clarence River Swell Statistics, May: Surf with Light or Offshore Winds

This image shows only the swells directed at Clarence River that coincided with light winds or offshore conditions through a typical 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 illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. Green and yellow represent increasing swell sizes and largest 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 largest spokes, was SE, whereas the the most common wind blows from the WNW. 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 45% of the time, equivalent to 14 days. Expect open water swells to exceed >3m (>10ft) 5% of the time (2 days). Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Clarence River is exposed to open water swells, we think that that clean surf can be found at Clarence River about 45% of the time and that surf is messed up by onshore wind 31% of the time. This is means that we expect 24 days with waves in a typical May, of which 14 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.