Swell Matrix:
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hide labels Friday, December 15 Saturday, December 16 Sunday, December 17 Monday, December 18 Tuesday, December 19 Wednesday, December 20 Thursday, December 21 Friday, Dec 22
Hour: 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Sea Height 1.28 ft 1.25 ft 1.21 ft 1.21 ft 1.18 ft 1.18 ft 1.18 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.18 ft 1.18 ft 1.18 ft 1.21 ft 1.21 ft 1.18 ft 1.18 ft 1.18 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.18 ft 1.18 ft 1.21 ft 1.21 ft 1.18 ft 1.18 ft 1.15 ft 1.15 ft 1.15 ft 1.18 ft 1.25 ft 1.31 ft 1.38 ft 1.48 ft 1.54 ft 1.61 ft 1.67 ft 1.71 ft 1.77 ft 1.84 ft 1.90 ft 1.97 ft 2.03 ft 2.03 ft 2.03 ft 2.03 ft 2.03 ft 2.03 ft 2.03 ft 2.07 ft 2.10 ft 2.10 ft 2.13 ft 2.16 ft 2.23 ft 2.26 ft 2.26 ft 2.26 ft 2.26 ft 2.23 ft 2.23 ft 2.20 ft 2.20 ft 2.16 ft 2.13 ft 2.10 ft 2.10 ft 2.10 ft 2.10 ft 2.13 ft 2.13 ft 2.16 ft 2.16 ft 2.20 ft 2.20 ft 2.23 ft 2.23 ft 2.26 ft 2.26 ft 2.30 ft 2.30 ft 2.30 ft 2.26 ft 2.23 ft 2.20 ft 2.16 ft 2.10 ft 2.03 ft 1.97 ft 1.90 ft 1.87 ft 1.80 ft 1.74 ft 1.71 ft 1.67 ft 1.61 ft 1.57 ft 1.57 ft 1.57 ft 1.57 ft 1.61 ft 1.64 ft 1.74 ft 1.80 ft 1.90 ft 1.94 ft 1.97 ft 2.00 ft 2.00 ft 2.03 ft 2.03 ft 2.03 ft 2.00 ft 1.97 ft 1.94 ft 1.90 ft 1.87 ft 1.84 ft 1.84 ft 1.80 ft 1.77 ft 1.74 ft 1.71 ft 1.67 ft 1.64 ft 1.57 ft 1.54 ft 1.51 ft 1.48 ft 1.44 ft 1.44 ft 1.41 ft 1.44 ft 1.54 ft 1.67 ft 1.84 ft 2.07 ft 2.30 ft 2.56 ft 2.79 ft 2.98 ft 3.25 ft 3.51 ft 3.74 ft 3.97 ft 4.20 ft 4.40 ft 4.59 ft 4.72 ft 4.85 ft 4.89 ft 4.92 ft 4.92 ft 4.92 ft 4.92 ft 4.85 ft 4.82 ft 4.79 ft 4.72 ft 4.66 ft 4.62 ft 4.59 ft 4.56 ft 4.49 ft 4.46 ft 4.43 ft 4.36 ft 4.30 ft 4.23 ft 4.17 ft 4.10 ft 4.03 ft 3.97 ft 3.90 ft 3.87 ft 3.80 ft 3.77 ft 3.74 ft 3.74 ft 3.77 ft 3.80 ft 3.84 ft 3.90 ft 3.94 ft 4.00 ft
Height 0.89 ft 0.79 ft 0.72 ft 0.69 ft 0.62 ft 0.56 ft 0.49 ft 0.52 ft 1.41 ft 1.34 ft 1.31 ft 1.21 ft 1.21 ft 1.08 ft 1.05 ft 0.98 ft 0.95 ft 0.92 ft 0.89 ft 0.82 ft 0.82 ft 0.79 ft 0.79 ft 0.75 ft 0.66 ft 0.72 ft 0.69 ft 0.59 ft 0.56 ft 0.52 ft 0.52 ft 1.12 ft 1.05 ft 1.05 ft 0.95 ft 0.92 ft 0.89 ft 0.85 ft 0.82 ft 0.79 ft 0.72 ft 0.69 ft 0.62 ft 0.62 ft 0.59 ft 0.56 ft 0.52 ft 0.49 ft 0.72 ft 0.72 ft 0.72 ft 0.72 ft 0.75 ft 0.85 ft 0.82 ft 0.85 ft 0.85 ft 0.89 ft 0.85 ft 0.75 ft 0.72 ft 0.69 ft 0.66 ft 0.66 ft 0.62 ft 0.56 ft 0.49 ft 0.72 ft 1.02 ft 1.28 ft 1.61 ft 1.94 ft 2.26 ft 2.49 ft 2.72 ft 3.02 ft 3.51 ft 3.74 ft 3.97 ft 4.20 ft 4.40 ft 4.59 ft 4.72 ft 4.85 ft 4.89 ft 4.92 ft 4.92 ft 4.92 ft 4.92 ft 4.85 ft 4.82 ft 4.79 ft 4.72 ft 4.66 ft 4.62 ft 4.59 ft 4.56 ft 4.49 ft
Period 6″ 6″ 6″ 6″ 6″ 6″ 6″ 1″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 3″ 3″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 3″ 3″ 4″ 3″ 4″ 4″ 4″ 4″ 4″ 4″ 3″ 3″ 2″ 2″ 2″ 3″ 3″ 4″ 4″ 4″ 4″ 5″ 5″ 5″ 5″ 5″ 5″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″
Direction ↙ 27° ↙ 27° ↙ 28° ↙ 28° ↙ 28° ↙ 28° ↙ 29° → 290° ↙ 11° ↙ 10° ↙ 11° ↙ 10° ↙ 11° ↓ 8° ↓ 8° ↓ 7° ↓ 8° ↓ 7° ↓ 7° ↓ 7° ↓ 8° ↙ 10° ↙ 10° ↙ 11° ↓ 9° ↙ 14° ↙ 14° ↙ 11° ↙ 12° ↙ 11° ↙ 12° ↖ 140° ↖ 140° ↖ 139° ↖ 140° ↖ 139° ↖ 139° ↖ 138° ↖ 138° ↖ 138° ↖ 138° ↖ 140° ↖ 142° ↖ 141° ↖ 142° ↖ 143° ↖ 144° ↖ 144° ↖ 138° ↖ 138° ↖ 137° ↖ 140° ↖ 142° ↖ 143° ↖ 139° ↖ 138° ↖ 137° ↖ 146° ↖ 147° ↖ 138° ↖ 139° ↖ 138° ↖ 139° ↖ 152° ↖ 150° ↖ 147° ↖ 144° ↓ 7° ↙ 20° ↙ 26° ↙ 29° ↙ 30° ↙ 30° ↙ 30° ↙ 30° ↙ 32° ↙ 41° ↙ 43° ↙ 45° ↙ 48° ↙ 50° ↙ 52° ↙ 54° ↙ 55° ↙ 57° ↙ 58° ↙ 59° ↙ 60° ↙ 61° ↙ 62° ↙ 63° ↙ 63° ↙ 64° ↙ 65° ↙ 65° ↙ 66° ↙ 67° ↙ 67°
Height 0.79 ft 0.79 ft 0.82 ft 0.82 ft 0.85 ft 0.85 ft 0.89 ft 0.89 ft 0.92 ft 0.92 ft 0.95 ft 0.95 ft 0.98 ft 0.98 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 0.98 ft 0.98 ft 0.98 ft 0.98 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.02 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.05 ft 1.08 ft 1.08 ft 1.08 ft 1.08 ft 1.12 ft 1.12 ft 1.12 ft 1.12 ft 1.12 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.18 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.15 ft 1.12 ft 1.18 ft 1.28 ft 1.31 ft 1.34 ft 1.12 ft 1.12 ft 1.08 ft 1.08 ft 1.05 ft 1.05 ft 1.05 ft 1.08 ft 1.08 ft 1.12 ft 1.12 ft 1.12 ft 1.12 ft 1.12 ft 1.12 ft 1.12 ft 1.28 ft 1.31 ft 1.31 ft 1.31 ft 1.54 ft 1.48 ft 1.48 ft 1.44 ft 1.41 ft 1.38 ft 1.34 ft 1.34 ft 1.34 ft 1.31 ft 1.31 ft 1.31 ft 1.31 ft 1.28 ft 1.25 ft 1.25 ft 1.25 ft 1.21 ft 1.21 ft 1.18 ft 1.18 ft 1.21 ft 1.18 ft 3.25 ft 3.21 ft 2.98 ft 2.89 ft 2.79 ft 2.66 ft 2.62 ft 2.66 ft 2.39 ft 2.43 ft 2.33 ft 2.20 ft 2.10 ft 2.03 ft 1.67 ft
Period 10″ 11″ 11″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 8″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 9″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″
Direction ↙ 80° ← 81° ← 81° ↙ 80° ← 81° ← 81° ← 81° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 79° ↙ 79° ↙ 79° ↙ 79° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ↙ 80° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 81° ← 82° ← 82° ← 82° ← 82° ← 82° ← 82° ← 82° ← 82° ← 82° ← 82° ← 82° ← 83° ← 83° ← 83° ← 83° ← 83° ← 83° ← 83° ← 83° ← 84° ← 84° ← 84° ← 84° ← 84° ← 84° ← 84° ← 84° ← 84° ← 84° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 85° ← 84° ← 85° ← 85° ← 85° ← 85° ← 85° ← 84° ← 84° ← 84° ← 84° ← 84° ← 85° ← 85° ← 85° ← 85° ← 85° ← 84° ← 84° ← 85° ← 86° ← 86° ← 85° ← 86° ← 86° ← 86° ← 86° ← 86° ← 86° ← 86° ← 86° ← 85° ← 85° ← 84° ← 84° ← 83° ← 85° ← 85° ← 86° ← 86° ← 85° ← 86° ← 85° ← 85° ← 85° ← 86° ↙ 45° ↙ 45° ↙ 42° ↙ 41° ↙ 41° ↙ 39° ↙ 40° ↙ 41° ↙ 38° ↙ 39° ↙ 38° ↙ 36° ↙ 36° ↙ 35° ↙ 30°
Height 0.49 ft 0.52 ft 0.52 ft 0.52 ft 0.49 ft 0.49 ft 0.52 ft 0.56 ft 0.56 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.56 ft 0.52 ft 0.56 ft 0.59 ft 0.59 ft 0.59 ft 0.56 ft 0.52 ft 0.56 ft 0.56 ft 0.62 ft 0.72 ft 0.85 ft 0.95 ft 1.08 ft 1.18 ft 1.25 ft 1.31 ft 1.38 ft 1.44 ft 1.54 ft 1.61 ft 1.71 ft 1.74 ft 1.77 ft 1.21 ft 0.59 ft 0.79 ft 0.82 ft 0.85 ft 0.85 ft 0.56 ft 0.56 ft 0.52 ft 0.85 ft 0.85 ft 0.82 ft 0.82 ft 0.79 ft 0.75 ft 0.75 ft 0.72 ft 0.72 ft 0.69 ft 0.72 ft 0.69 ft 0.69 ft 0.66 ft 0.66 ft 0.59 ft 0.59 ft 0.56 ft 0.56 ft 0.52 ft 0.52 ft 0.82 ft 0.89 ft 1.02 ft 1.18 ft 1.34 ft 1.44 ft 1.51 ft 1.57 ft 1.61 ft 1.61 ft 1.64 ft 1.71 ft 1.67 ft 1.51 ft 0.66 ft 0.66 ft 2.89 ft 2.85 ft 3.05 ft 3.15 ft 3.18 ft 3.21 ft 3.15 ft 3.05 ft 3.18 ft 3.08 ft 3.08 ft 3.12 ft 3.15 ft 3.15 ft 3.35 ft 3.77 ft 3.80 ft 3.84 ft 3.90 ft 3.94 ft 4.00 ft
Period 1″ 1″ 1″ 2″ 2″ 2″ 1″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 1″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 4″ 4″ 4″ 4″ 3″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 6″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 4″ 4″ 4″ 4″ 4″ 5″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 7″ 7″ 7″
Direction ↑ 187° ↗ 190° ↗ 191° ↗ 192° ↗ 192° ↗ 193° ↗ 193° ↗ 191° ↑ 189° ↑ 187° ↑ 186° ↑ 185° ↑ 186° ↑ 188° ↗ 193° ↘ 306° ↘ 320° ↘ 331° ↘ 338° ↘ 343° ↘ 348° ↓ 351° ↓ 355° ↓ 360° ↓ 4° ↓ 9° ↙ 13° ↙ 15° ↙ 18° ↙ 19° ↙ 21° ↙ 22° ↙ 23° ↙ 23° ↙ 24° ↙ 24° ↙ 26° ↙ 28° ← 84° ↙ 31° ↙ 25° ↙ 26° ↙ 27° ↙ 28° ↙ 37° ↙ 37° ↙ 37° ↙ 29° ↙ 29° ↙ 29° ↙ 29° ↙ 30° ↙ 30° ↙ 31° ↙ 31° ↙ 31° ↙ 32° ↙ 33° ↙ 33° ↙ 33° ↙ 34° ↙ 34° ↙ 34° ↙ 34° ↙ 34° ↙ 35° ↙ 35° ↙ 36° ← 86° ← 85° ← 86° ← 87° ← 87° ← 87° ← 88° ← 88° ← 89° ← 90° ← 92° ← 95° ← 94° ← 89° ← 89° ← 90° ← 96° ← 96° ← 93° ← 91° ← 90° ← 88° ← 88° ← 89° ← 86° ← 86° ← 85° ← 84° ← 84° ← 83° ↙ 79° ↙ 70° ↙ 71° ↙ 71° ↙ 72° ↙ 73° ↙ 74°
Height 1.05 ft 1.15 ft 1.18 ft 1.28 ft 1.28 ft 1.41 ft 1.48 ft 1.54 ft 1.57 ft 1.64 ft 1.74 ft 1.77 ft 1.80 ft 1.80 ft 1.80 ft 1.80 ft 1.77 ft 1.74 ft 1.74 ft 1.67 ft 1.61 ft 1.57 ft 1.54 ft 1.54 ft 1.54 ft 1.57 ft 1.57 ft 1.61 ft 1.64 ft 1.64 ft 1.67 ft 1.71 ft 1.74 ft 1.77 ft 1.80 ft 1.84 ft 1.80 ft 1.80 ft 1.77 ft 1.74 ft 1.67 ft 1.61 ft 1.54 ft 1.18 ft 1.08 ft 0.95 ft 0.92 ft 1.05 ft 0.95 ft 0.92 ft
Period 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 8″ 8″ 9″
Direction ↙ 73° ↙ 74° ↙ 78° ↙ 78° ← 82° ← 81° ← 83° ← 84° ← 88° ← 90° ← 91° ← 93° ← 96° ← 98° ↖ 101° ↖ 103° ↖ 104° ↖ 107° ↖ 107° ↖ 109° ↖ 109° ↖ 110° ↖ 110° ↖ 110° ↖ 110° ↖ 110° ↖ 110° ↖ 110° ↖ 110° ↖ 111° ↖ 111° ↖ 111° ↖ 112° ↖ 112° ↖ 113° ↖ 114° ↖ 114° ↖ 115° ↖ 115° ↖ 117° ↖ 117° ↖ 118° ↖ 118° ← 91° ← 90° ← 89° ← 88° ← 83° ← 83° ← 84°
Height 1.08 ft 0.95 ft 0.92 ft 0.82 ft 0.82 ft 0.75 ft 0.72 ft 0.66 ft 0.56 ft
Period 4″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″
Direction ↖ 138° ← 86° ← 87° ← 85° ← 87° ← 86° ← 85° ← 84° ← 82°
Height
Period
Direction

How to use this site

Use the ≡ menu and the site name selector at the top of the screen to navigate the site and see different forecasts

Up to 6 individual swells are forecast every hour for the buoy site.
Overall sea height is the top row.
Following rows show height, period, and direction for each swell

Heights less than 1 are gray, heights greater than 5 are bold.

Wave periods colored by length. Longer periods equal larger breaking waves.

High and low tides are given above the sea height for select coastal sites.

A hindcast for the previous 12 hours are shown for comparison with current buoy data, available as the first link in the ≡ menu.

Learn more...