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Whangaehu River Mouth ratings
Quality on a good day: 3.5
Consistency of Surf: 3.0
Difficulty Level: 2.0
Wind and Kite Surfing: 3.0
Crowds: 4.5

Overall: 2.8

See all 18 ratings

Based on 2 votes. Vote


Surf Report Feed

Whangaehu River Mouth Swell Statistics, Spring: Surf with Light or Offshore Winds

This image shows only the swells directed at Whangaehu River Mouth that coincided with light winds or offshore conditions through a typical southern hemisphere spring and is based upon 8475 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 show increasing swell sizes and red represents highest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how frequently that size swell occurs.

The diagram suggests that the dominant swell direction, shown by the longest spokes, was W, whereas the the dominant 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 2% of the time, equivalent to 2 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal southern hemisphere spring but 2% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 2%, equivalent to (2 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Whangaehu River Mouth is slightly protected from open water swells, we calculate that clean surf can be found at Whangaehu River Mouth about 2% of the time and that surf is spoilt by onshore wind 39% of the time. This is means that we expect 37 days with waves in a typical southern hemisphere spring, of which 2 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.