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Jongensfontein ratings
Quality on a good day: 4.0
Consistency of Surf: 4.0
Difficulty Level: 3.0
Crowds: 3.0

Overall: 3.7

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Surf Report Feed

Jongensfontein Swell Statistics, Autumn: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Jongensfontein that coincided with light winds or offshore conditions through a typical southern hemisphere autumn and is based upon 8052 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 biggest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell happens.

The diagram implies that the most common swell direction, shown by the largest spokes, was SSW, whereas the the prevailing wind blows from the SSE. 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 30 days. Expect open water swells to exceed >3m (>10ft) 3% of the time (3 days). Taking into account the ratio of these swells that coincided with expected offshore winds, and given the fact that Jongensfontein is exposed to open water swells, we calculate that clean surf can be found at Jongensfontein about 33% of the time and that surf is blown out by onshore wind 61% of the time. This is means that we expect 86 days with waves in a typical southern hemisphere autumn, of which 30 days should be clean enough to surf.

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.