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Noosa - Johnsons ratings
Quality on a good day: 3.0
Consistency of Surf: 3.0
Difficulty Level: 3.0
Crowds: 2.0

Overall: 3.5

See all 18 ratings

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Surf Report Feed

Noosa - Johnsons Swell Statistics, Autumn: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Noosa - Johnsons that coincided with light winds or offshore conditions through a typical southern hemisphere autumn. It is based on 8682 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 show increasing swell sizes and largest swells greater than >3m (>10ft) are shown in red. In both graphs, the area of any colour is proportional to how commonly that size swell was forecast.

The diagram implies that the dominant swell direction, shown by the biggest spokes, was E, whereas the the most common wind blows from the SE. 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 43% of the time, equivalent to 39 days. Open water swells exceeding >3m (>10ft) only occur 1.1% of the time in a typical southern hemisphere autumn, equivalent to just one day but 14% of the time we expect swell in the range 2-3m (6.5-10ft) 14%, equivalent to (13 days). Taking into account the proportion of these swells that coincided with forecast offshore winds, and given the fact that Noosa - Johnsons is exposed to open water swells, we think that that clean surf can be found at Noosa - Johnsons about 43% of the time and that surf is spoilt by onshore wind 35% of the time. This is means that we expect 71 days with waves in a typical southern hemisphere autumn, of which 39 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.