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Baie des Trepasses ratings
Quality on a good day: 3.6
Consistency of Surf: 4.2
Difficulty Level: 3.0
Wind and Kite Surfing: 1.0
Crowds: 3.0

Overall: 3.1

See all 18 ratings

Based on 5 votes. Vote


Surf Report Feed

Baie des Trepasses Swell Statistics, August: Surf with Light or Offshore Winds

This image shows only the swells directed at Baie des Trepasses that coincided with light winds or offshore conditions over a normal August. 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 illustrates largest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how often that size swell happens.

The diagram indicates that the prevailing swell direction, shown by the largest spokes, was W, whereas the the most common 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 7% of the time, equivalent to 2 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal August but 5% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 5%, equivalent to (2 days). Taking into account the ratio of these swells that coincided with predicted offshore winds, and given the fact that Baie des Trepasses is slightly protected from open water swells, we estimate that clean surf can be found at Baie des Trepasses about 7% of the time and that surf is spoilt by onshore wind 36% of the time. This is means that we expect 13 days with waves in a typical August, of which 2 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.