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Waimea Rivermouth ratings
Quality on a good day: 3.0
Consistency of Surf: 3.0
Difficulty Level: 1.0
Crowds: 3.0

Overall: 2.8

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Surf Report Feed

Waimea Rivermouth Swell Statistics, All Year: Surf with Light or Offshore Winds

This image shows only the swells directed at Waimea Rivermouth that coincided with light winds or offshore conditions over a normal year. It is based on 34628 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 red shows the highest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how commonly that size swell happens.

The diagram implies that the most common swell direction, shown by the biggest spokes, was S, whereas the the dominant wind blows from the ENE. 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 12% of the time, equivalent to 44 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal year but 4% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 4%, equivalent to (15 days). Taking into account the proportion of these swells that coincided with forecast offshore winds, and given the fact that Waimea Rivermouth is exposed to open water swells, we estimate that clean surf can be found at Waimea Rivermouth about 12% of the time and that surf is messed up by onshore wind 3% of the time. This is means that we expect 55 days with waves in a typical year, of which 44 days should be surfable.

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.