Porthcawl Point Wind Stats

The figure describes how often and how strongly the wind blows from different directions through a typical August. The longest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with the darkest shade of blue strongest. It is based on 3589 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Porthcawl Point, located 21 km away (13 miles). There are too few 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 prevailing wind at Porthcawl Point blows from the WSW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Porthcawl Point. On the other hand, dominant spokes show favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average August, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 10% of the time (3 days each August) and blows offshore 15% of the time (0 days in an average August). During a typical August wind stronger than >40kph (25mph) was forecast for only a single days at Porthcawl Point

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