uk es it fr pt nl
Usal Beach ratings
Quality on a good day: 2.0
Crowds: 5.0

Overall: 4.0

See all 18 ratings

Based on 1 vote. Vote


Surf Report Feed

Usal Beach Swell Statistics, Spring: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Usal Beach that coincided with light winds or offshore conditions through a typical northern hemisphere spring. It is based on 8052 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 represent increasing swell sizes and red shows highest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how often that size swell happens.

The diagram indicates that the dominant swell direction, shown by the biggest spokes, was WNW, whereas the the dominant wind blows from the NW. 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 16% of the time, equivalent to 15 days. Open water swells exceeding >3m (>10ft) only arise 1.6% of the time in a typical northern hemisphere spring, equivalent to just one day but 7% of the time we expect swell in the range 2-3m (6.5-10ft) 7%, equivalent to (6 days). Taking into account the proportion of these swells that coincided with predicted offshore winds we think that that clean surf can be found at Usal Beach about 16% of the time and that surf is messed up by onshore wind 79% of the time. This is means that we expect 86 days with waves in a typical northern hemisphere spring, of which 15 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.