The Beaufort scale


You can find below the Beaufort scale. Move with the mouse over
the description to find more characteristics on the Beaufort number.

Beaufort Description Wave Height Knots Km/h Meters per seconds Miles per hour
0 Calm 0cm <1 <0 0- 0,2 <1
1 Light Air 10cm 1 - 3 2 - 6 0,3 - 1,5 1 - 3
2 Light Breeze 20cm 4 - 6 6 - 12 1,6 - 3,3 4 - 7
3 Gentle Breeze 60cm 7 - 10 12 - 20 3,4 - 5,4 8 - 12
4 Moderate Breeze 1m 11 - 16 20 - 28 5,5 - 7,9 13 - 18
5 Fresh Breeze 2m 17 - 21 28 - 38 8,0 - 10,7 19 - 24
6 Strong Breeze 3m 22 - 27 38 - 50 10,8 - 13,8 25 - 31
7 Near Gale 4m 28 - 33 50 - 62 13,9 - 17,1 32 - 38
8 Gale 5,5m 34 - 40 62 - 74 17,2 - 20,7 39 - 46
9 Strong Gale 7m 41 - 47 74 - 88 20,8 - 24,4 47 - 54
10 Storm 9m 48 - 55 88 - 102 24,5 - 28,4 55 - 63
11 Violent Storm 11,5m 56 - 63 102 - 118 28,5 - 32,6 64 - 72
12 Hurricane 14m >64 >118 >32,7 >73