Bristol Wind Stats

This image describes how often and how strongly the wind blows from different directions through a typical October. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the strongest winds shown by the darkest shade of blue. It is based on 3471 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Bristol, located 31 km away (19 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 dominant wind at Bristol blows from the NNW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Bristol. By contrast, dominant spokes illustrate favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average October, the model suggests that winds are light enough for the sea to be glassy (light blue) about 14% of the time (4 days each October) and blows offshore 22% of the time (3 days in an average October). In a typical October winds exceeding >40kph (25mph) are not expected, but 3 have winds on the range 30-40 (19-25) at Bristol

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