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Grandview ratings
Quality on a good day: 2.5
Consistency of Surf: 3.0
Difficulty Level: 3.5
Wind and Kite Surfing: 1.0
Crowds: 2.2

Overall: 2.7

See all 18 ratings

Based on 4 votes. Vote


Surf Report Feed

Grandview Swell Statistics, October: Surf with Light or Offshore Winds

This image shows only the swells directed at Grandview that coincided with light winds or offshore conditions through a typical October. It is based on 2976 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. Green and yellow represent increasing swell sizes and red illustrates biggest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how frequently that size swell was forecast.

The diagram suggests that the dominant swell direction, shown by the longest spokes, was SW, whereas the the prevailing 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 53% of the time, equivalent to 16 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal October. Taking into account the proportion of these swells that coincided with predicted offshore winds, and given the fact that Grandview is exposed to open water swells, we calculate that clean surf can be found at Grandview about 53% of the time and that surf is spoilt by onshore wind 45% of the time. This is means that we expect 30 days with waves in a typical October, of which 16 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.