Swanage Wind Stats

The rose diagram shows how frequently and how strongly the wind blows from different directions through a typical November. The largest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with dark blue strongest. It is based on 3347 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Swanage, located 13 km away (8 miles). There are too few recording stations world wide to use actual wind data. Without question some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the dominant wind at Swanage blows from the SW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Swanage. Converseley, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average November, the model suggests that winds are light enough for the sea to be glassy (light blue) about 3% of the time (1 days each November) and blows offshore just 42% of the time (0 days in an average November). During a typical November winds stronger than >40kph (25mph) are expected on 7 days at Swanage

read more