Katwijk aan Zee Wind Stats

This picture shows how often and how strongly the wind blows from different directions over a normal November. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with deep blue strongest. It is based on 3345 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Katwijk aan Zee, located 31 km away (19 miles). There are insufficient recording stations world wide to use actual wind data. No doubt some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the dominant wind at Katwijk aan Zee blows from the NW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Katwijk aan Zee. Converseley, dominant spokes show favoured directions, and the more the darkest shade of blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical November, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 3% of the time (1 days each November) and blows offshore just 7% of the time (1 days in an average November). Over an average November winds stronger than >40kph (25mph) are expected on 2 days at Katwijk aan Zee

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