Mana Island Wind Stats

This chart illustrates how commonly and how strongly the wind blows from different directions through a typical July. The longest 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 deep blue. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Mana Island, located 25 km away (16 miles). There are not enough 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 Mana Island 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 Mana Island. By contrast, dominant spokes represent favoured directions, and the more the darkest shade of blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average July, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 2% of the time (1 days each July) and blows offshore just 6% of the time (2 days in an average July). In a typical July winds stronger than >40kph (25mph) are expected on 5 days at Mana Island

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