1. In general, a light wind. In the Beaufort wind scale, this is a wind between 4 and 10 kt (4 and 12 mph). 2. In the Beaufort wind scale (Beaufort wind force numbers 2–6), a wind speed ranging from 4 to 27 kt (4 to 31 mph) and categorized as follows: light breeze, 4–6 kt; gentle breeze, 7–10 kt; moderate breeze, 11–16 kt; fresh breeze, 17–21 kt; and strong breeze, 22–27 kt.