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Dunedin - St Kilda Beach ratings
Quality on a good day: 3.5
Consistency of Surf: 3.7
Difficulty Level: 2.2
Wind and Kite Surfing: 1.0
Crowds: 3.2

Overall: 3.3

See all 18 ratings

Based on 6 votes. Vote


Surf Report Feed

Dunedin - St Kilda Beach Swell Statistics, March: All Swell – Any Wind

The graph shows the range of swells directed at Dunedin - St Kilda Beach over a normal March. It is based on 2964 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast surf and wind right at the coast so we have chosen the most applicable grid node based on what we know about Dunedin - St Kilda Beach, and at Dunedin - St Kilda Beach the best grid node is 10 km away (6 miles).

The rose diagram illustrates the distribution of swell directions and swell sizes, while the graph at the bottom shows the same thing but lacks direction information. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. These occurred only 29% of the time. Green and yellow represent increasing swell sizes and red represents the biggest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how frequently that size swell occurs.

The diagram suggests that the dominant swell direction, shown by the longest spokes, was S, whereas the the prevailing wind blows from the NW. Because the wave model grid is offshore, sometimes a strong offshore wind blows largest waves away from Dunedin - St Kilda Beach and away from the coast. We group these with the no surf category of the bar chart. To keep it simple we don't show these in the rose plot. Because wind determines whether or not waves are surfable at Dunedin - St Kilda Beach, you can select a similar diagram that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. During a typical March, swells large enough to cause good for surfing waves at Dunedin - St Kilda Beach run for about 71% of the time.

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.