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Wairoa River Mouth ratings
Quality on a good day: 3.5
Consistency of Surf: 3.5
Difficulty Level: 5.0
Wind and Kite Surfing: 1.0
Crowds: 2.0

Overall: 3.3

See all 18 ratings

Based on 2 votes. Vote


Surf Report Feed

Wairoa River Mouth Swell Statistics, September: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Wairoa River Mouth that coincided with light winds or offshore conditions through a typical September and is based upon 2880 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 each graph, the area of any colour is proportional to how commonly that size swell occurs.

The diagram implies that the most common swell direction, shown by the biggest spokes, was SSE, whereas the the dominant wind blows from the NW. 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 30% of the time, equivalent to 9 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal September but 12% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 12%, equivalent to (4 days). Taking into account the ratio of these swells that coincided with predicted offshore winds, and given the fact that Wairoa River Mouth is exposed to open water swells, we think that that clean surf can be found at Wairoa River Mouth about 30% of the time and that surf is blown out by onshore wind 38% of the time. This is means that we expect 20 days with waves in a typical September, of which 9 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.