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Sumner Bar Voti
Qualità su una buona giornata: 4.1
Coerenza del surf: 2.0
Livello di difficoltà: 3.1
Wind e kite surf: 2.2
Folle: 4.0

Overall: 3.5

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Surf Report Feed

Sumner Bar Swell Statistics, Ottobre: Surf with Light or Offshore Winds

This image shows only the swells directed at Sumner Bar that coincided with light winds or offshore conditions over a normal October. It is based on 2480 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 shows the largest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how commonly that size swell occurs.

The diagram implies that the dominant swell direction, shown by the biggest spokes, was E, whereas the the most common 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 2% of the time, equivalent to 1 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal October. Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Sumner Bar is slightly protected from open water swells, we think that that clean surf can be found at Sumner Bar about 2% of the time and that surf is spoilt by onshore wind 5% of the time. This is means that we expect 2 days with waves in a typical October, of which 1 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.