Holbaai Wind Stats

The graph describes how commonly and how strongly the wind blows from different directions over a normal April. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with dark blue strongest. It is based on 3360 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Holbaai, located 49 km away (30 miles). There are insufficient recording stations world wide to use actual wind data. Invevitably some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the most common wind at Holbaai blows from the SW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Holbaai. Converseley, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical April, the model suggests that winds are light enough for the sea to be glassy (light blue) about 10% of the time (3 days each April) and blows offshore 29% of the time (9 days in an average April). Over an average April winds stronger than >40kph (25mph) are expected on 2 days at Holbaai

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