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Uluwatu ratings
Quality on a good day: 4.4
Consistency of Surf: 4.2
Difficulty Level: 4.0
Wind and Kite Surfing: 1.0
Crowds: 1.6

Overall: 3.4

See all 18 ratings

Based on 7 votes. Vote


Surf Report Feed

Uluwatu Swell Statistics, Summer: Surf with Light or Offshore Winds

This image shows only the swells directed at Uluwatu that coincided with light winds or offshore conditions through a typical southern hemisphere summer and is based upon 7765 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 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 often that size swell was forecast.

The diagram indicates that the prevailing swell direction, shown by the largest spokes, was SW, whereas the the most common wind blows from the WSW. 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 37% of the time, equivalent to 34 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal southern hemisphere summer but 4% of the time we expect swell in the range 2-3m (6.5-10ft) 4%, equivalent to (4 days). Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Uluwatu is exposed to open water swells, we estimate that clean surf can be found at Uluwatu about 37% of the time and that surf is spoilt by onshore wind 63% of the time. This is means that we expect 91 days with waves in a typical southern hemisphere summer, of which 34 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.