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Ewa Beach Park ratings
Quality on a good day: 2.5
Consistency of Surf: 3.5
Difficulty Level: 3.0
Wind and Kite Surfing: 1.0
Crowds: 3.0

Overall: 3.1

See all 18 ratings

Based on 2 votes. Vote


Surf Report Feed

Ewa Beach Park Swell Statistics, December: Surf with Light or Offshore Winds

This image shows only the swells directed at Ewa Beach Park that coincided with light winds or offshore conditions through a typical December and is based upon 2953 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 red illustrates highest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell occurs.

The diagram implies that the prevailing swell direction, shown by the largest 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 3% of the time, equivalent to 1 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal December. Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Ewa Beach Park is exposed to open water swells, we calculate that clean surf can be found at Ewa Beach Park about 3% of the time and that surf is blown out by onshore wind 8% of the time. This is means that we expect 3 days with waves in a typical December, of which 1 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.