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Nungwi Reefs ratings
Quality on a good day: 2.0
Consistency of Surf: 3.0
Difficulty Level: 1.0
Crowds: 5.0

Overall: 2.6

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Surf Report Feed

Nungwi Reefs Swell Statistics, All Year: Surf with Light or Offshore Winds

This image shows only the swells directed at Nungwi Reefs that coincided with light winds or offshore conditions over a normal year and is based upon 33260 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 illustrate increasing swell sizes and red shows biggest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell occurs.

The diagram implies that the prevailing swell direction, shown by the biggest spokes, was ESE, whereas the the prevailing 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 38% of the time, equivalent to 139 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal year but 3% of the time we expect swell in the range 2-3m (6.5-10ft) 3%, equivalent to (11 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Nungwi Reefs is exposed to open water swells, we think that that clean surf can be found at Nungwi Reefs about 38% of the time and that surf is messed up by onshore wind 57% of the time. This is means that we expect 347 days with waves in a typical year, of which 139 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.