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Motunau Beach ratings
Quality on a good day: 3.0
Consistency of Surf: 3.0
Crowds: 4.0

Overall: 3.2

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Surf Report Feed

Motunau Beach Swell Statistics, March: Surf with Light or Offshore Winds

This image shows only the swells directed at Motunau Beach that coincided with light winds or offshore conditions over a normal March. It is based on 2716 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 biggest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how frequently that size swell happens.

The diagram suggests that the prevailing swell direction, shown by the longest spokes, was SSE, whereas the the prevailing wind blows from the N. 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 33% of the time, equivalent to 10 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal March but 11% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 11%, equivalent to (3 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Motunau Beach is exposed to open water swells, we estimate that clean surf can be found at Motunau Beach about 33% of the time and that surf is blown out by onshore wind 31% of the time. This is means that we expect 20 days with waves in a typical March, of which 10 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.