Definitions for "Light breeze"
A wind with velocity from 4 to 6 NAUTICAL MILES per hour.
Beaufort force 2. Sustained wind speeds in the range of 4 to 6 knots. Small wavelets, still short but more pronaounced; crests have a glassy appearance and do not break.
wind moving 4-7 knots; 2 on the Beaufort scale