uk es it fr pt nl
Upper Sereweh ratings
Quality on a good day: 3.0
Consistency of Surf: 3.0
Difficulty Level: 1.0

Overall: 2.2

See all 18 ratings

Based on 1 vote. Vote


Surf Report Feed

Upper Sereweh Swell Statistics, Summer: Surf with Light or Offshore Winds

This image shows only the swells directed at Upper Sereweh that coincided with light winds or offshore conditions through a typical southern hemisphere summer. It is based on 8485 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 highest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how frequently that size swell was forecast.

The diagram suggests that the dominant swell direction, shown by the biggest spokes, was SW, whereas the the dominant wind blows from the W. 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 74% of the time, equivalent to 67 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal southern hemisphere summer but 15% of the time we expect swell in the range 2-3m (6.5-10ft) 15%, equivalent to (14 days). Taking into account the proportion of these swells that coincided with predicted offshore winds, and given the fact that Upper Sereweh is exposed to open water swells, we calculate that clean surf can be found at Upper Sereweh about 74% of the time and that surf is blown out by onshore wind 25% of the time. This is means that we expect 90 days with waves in a typical southern hemisphere summer, of which 67 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.