Swell Matrix:
Try the new graphical forecast here!
First time here?
hide labels Thursday, September 21 Friday, September 22 Saturday, September 23 Sunday, September 24 Monday, September 25 Tuesday, September 26 Wednesday, September 27 Thursday, Sep 28
Hour: 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 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13
Sea Height 4.36 ft 4.30 ft 4.26 ft 4.20 ft 4.13 ft 4.00 ft 3.94 ft 3.80 ft 3.74 ft 3.64 ft 3.58 ft 3.48 ft 3.41 ft 3.35 ft 3.25 ft 3.15 ft 3.08 ft 2.98 ft 2.92 ft 2.85 ft 2.79 ft 2.76 ft 2.76 ft 2.76 ft 2.79 ft 2.76 ft 2.79 ft 2.79 ft 2.82 ft 2.82 ft 2.79 ft 2.79 ft 2.76 ft 2.72 ft 2.69 ft 2.66 ft 2.66 ft 2.62 ft 2.62 ft 2.62 ft 2.62 ft 2.62 ft 2.66 ft 2.69 ft 2.72 ft 2.79 ft 2.89 ft 2.95 ft 3.05 ft 3.12 ft 3.18 ft 3.25 ft 3.31 ft 3.38 ft 3.41 ft 3.44 ft 3.48 ft 3.51 ft 3.54 ft 3.58 ft 3.64 ft 3.71 ft 3.77 ft 3.84 ft 3.90 ft 3.97 ft 4.07 ft 4.10 ft 4.17 ft 4.26 ft 4.40 ft 4.56 ft 4.72 ft 4.89 ft 5.05 ft 5.18 ft 5.35 ft 5.44 ft 5.58 ft 5.67 ft 5.81 ft 5.97 ft 6.10 ft 6.26 ft 6.43 ft 6.56 ft 6.69 ft 6.86 ft 7.02 ft 7.22 ft 7.48 ft 7.71 ft 7.90 ft 8.04 ft 8.10 ft 8.13 ft 8.17 ft 8.17 ft 8.20 ft 8.20 ft 8.20 ft 8.13 ft 8.07 ft 7.97 ft 7.87 ft 7.77 ft 7.74 ft 7.68 ft 7.64 ft 7.61 ft 7.58 ft 7.51 ft 7.41 ft 7.31 ft 7.18 ft 7.05 ft 6.99 ft 6.95 ft 6.92 ft 6.92 ft 6.92 ft 6.89 ft 6.89 ft 6.89 ft 6.86 ft 6.79 ft 6.72 ft 6.66 ft 6.59 ft 6.53 ft 6.46 ft 6.40 ft 6.33 ft 6.23 ft 6.10 ft 5.97 ft 5.87 ft 5.81 ft 5.74 ft 5.74 ft 5.74 ft 5.74 ft 5.71 ft 5.71 ft 5.67 ft 5.67 ft 5.67 ft 5.67 ft 5.67 ft 5.64 ft 5.61 ft 5.58 ft 5.51 ft 5.44 ft 5.41 ft 5.35 ft 5.28 ft 5.22 ft 5.15 ft 5.08 ft 5.05 ft 5.02 ft 4.99 ft 4.95 ft 4.95 ft 4.95 ft 4.95 ft 4.99 ft 5.02 ft 5.02 ft 5.05 ft 5.08 ft 5.12 ft 5.15 ft 5.18 ft 5.22 ft 5.22 ft 5.25 ft 5.22 ft 5.22 ft 5.15 ft 5.12 ft 5.08 ft 5.02 ft 4.95 ft 4.89 ft 4.85 ft 4.82 ft 4.82 ft
Height 4.36 ft 3.67 ft 3.58 ft 3.48 ft 3.38 ft 3.31 ft 3.94 ft 3.77 ft 3.12 ft 3.05 ft 3.05 ft 2.59 ft 3.05 ft 0.49 ft 0.52 ft 0.49 ft 0.52 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.52 ft 0.56 ft 0.56 ft 0.52 ft 0.52 ft 0.52 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.52 ft 0.56 ft 0.56 ft 0.49 ft 0.52 ft 0.52 ft 0.52 ft 0.49 ft 0.52 ft 0.66 ft 0.49 ft 0.75 ft 0.52 ft 0.82 ft 0.52 ft 0.56 ft 0.62 ft 0.52 ft 0.56 ft 0.59 ft 0.69 ft 0.75 ft 0.82 ft 0.95 ft 1.05 ft 1.25 ft 1.41 ft 1.38 ft 1.54 ft 1.74 ft 2.00 ft 2.43 ft 2.69 ft 4.17 ft 4.49 ft 4.66 ft 4.92 ft 5.12 ft 5.25 ft 5.31 ft 5.54 ft 5.81 ft 6.00 ft 6.30 ft 6.53 ft 6.82 ft 7.77 ft 7.84 ft 7.87 ft 8.17 ft 8.20 ft 8.20 ft 8.17 ft 8.13 ft 8.07 ft 7.97 ft 7.87 ft 7.77 ft 7.74 ft 7.68 ft 7.64 ft 7.61 ft 7.58 ft 7.51 ft 7.41 ft 7.31 ft 7.18 ft 7.05 ft 6.99 ft 6.95 ft 6.92 ft 6.92 ft 6.92 ft 6.89 ft 6.89 ft 6.89 ft 6.86 ft 6.79 ft 6.72 ft 6.66 ft 6.59 ft 6.53 ft 6.46 ft 6.40 ft 6.33 ft 6.23 ft 6.10 ft 5.97 ft 5.87 ft 5.81 ft 5.74 ft 5.74 ft 5.74 ft 5.74 ft 5.71 ft 5.71 ft 5.67 ft 5.67 ft 5.67 ft 5.67 ft 5.67 ft 5.64 ft 5.61 ft 5.58 ft 5.51 ft 5.44 ft 5.41 ft 5.35 ft 5.28 ft 5.22 ft 5.15 ft 5.08 ft 5.05 ft 5.02 ft 4.99 ft 4.95 ft 4.95 ft 4.95 ft 4.95 ft 4.99 ft 5.02 ft 5.02 ft 5.05 ft 5.08 ft 5.12 ft 5.15 ft 5.18 ft 5.22 ft 5.22 ft 5.25 ft 5.22 ft 5.22 ft 5.15 ft 5.12 ft 5.08 ft 5.02 ft 4.95 ft 4.89 ft 4.85 ft 4.82 ft 4.82 ft
Period 12″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 18″ 18″ 18″ 18″ 18″ 18″ 18″ 17″ 16″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 12″ 12″ 12″ 12″ 12″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 12″ 12″ 12″ 12″ 12″ 12″ 13″ 13″ 12″ 12″ 12″ 12″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 12″ 12″ 12″
Direction ↙ 49° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 49° ↙ 49° ↙ 49° ↙ 49° ↙ 47° ↙ 47° ← 87° ← 86° ← 86° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 87° ← 86° ← 87° ← 87° ← 87° ← 87° ← 87° ← 88° ← 87° ← 88° ← 87° ← 89° ← 88° ← 88° ← 89° ← 90° ← 90° ← 90° ← 90° ← 90° ← 90° ← 90° ← 90° ← 90° ← 90° ← 89° ← 89° ← 89° ← 89° ← 89° ← 89° ← 89° ← 89° ← 89° ← 90° ← 90° ← 90° ← 90° ← 89° ← 89° ← 89° ← 88° ← 88° ← 87° ← 87° ← 88° ← 87° ← 86° ← 86° ← 85° ← 85° ← 84° ← 83° ↙ 76° ↙ 76° ↙ 76° ↙ 74° ↙ 74° ↙ 74° ↙ 74° ↙ 73° ↙ 73° ↙ 72° ↙ 72° ↙ 71° ↙ 71° ↙ 71° ↙ 70° ↙ 70° ↙ 70° ↙ 70° ↙ 69° ↙ 69° ↙ 68° ↙ 68° ↙ 68° ↙ 67° ↙ 67° ↙ 67° ↙ 66° ↙ 66° ↙ 66° ↙ 65° ↙ 65° ↙ 65° ↙ 64° ↙ 64° ↙ 64° ↙ 64° ↙ 64° ↙ 64° ↙ 64° ↙ 64° ↙ 63° ↙ 63° ↙ 63° ↙ 63° ↙ 63° ↙ 63° ↙ 63° ↙ 63° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 62° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 61° ↙ 60° ↙ 60° ↙ 60° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 59° ↙ 58° ↙ 58° ↙ 58° ↙ 58° ↙ 57° ↙ 57° ↙ 57°
Height 2.23 ft 2.33 ft 2.36 ft 2.33 ft 2.26 ft 2.00 ft 1.90 ft 1.77 ft 1.67 ft 1.48 ft 1.21 ft 0.92 ft 1.51 ft 1.61 ft 1.67 ft 1.71 ft 1.77 ft 1.84 ft 1.84 ft 1.87 ft 1.80 ft 1.77 ft 1.74 ft 1.71 ft 1.71 ft 1.67 ft 1.67 ft 1.64 ft 1.64 ft 1.64 ft 1.64 ft 1.51 ft 1.64 ft 1.71 ft 1.74 ft 1.80 ft 1.94 ft 2.07 ft 2.13 ft 2.26 ft 2.36 ft 2.43 ft 2.49 ft 2.56 ft 2.59 ft 2.59 ft 2.62 ft 2.62 ft 2.66 ft 2.69 ft 2.79 ft 2.82 ft 2.92 ft 2.98 ft 3.02 ft 3.08 ft 3.18 ft 3.31 ft 0.56 ft 0.82 ft 0.85 ft 0.85 ft 0.92 ft 3.28 ft 3.38 ft 3.15 ft 3.25 ft 3.12 ft 3.08 ft 0.75 ft
Period 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 2″ 3″ 3″ 3″ 3″ 3″ 3″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 5″ 5″ 5″ 5″ 5″ 5″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 4″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 6″ 10″ 18″ 18″ 18″ 18″ 6″ 7″ 6″ 7″ 6″ 7″ 10″
Direction ↙ 45° ↙ 46° ↙ 47° ↙ 49° ↙ 50° ↙ 51° ↙ 51° ↙ 51° ↙ 50° ↙ 49° ↙ 48° ↙ 29° ↙ 38° ↙ 40° ↙ 41° ↙ 43° ↙ 46° ↙ 48° ↙ 49° ↙ 49° ↙ 49° ↙ 48° ↙ 47° ↙ 46° ↙ 45° ↙ 44° ↙ 43° ↙ 43° ↙ 42° ↙ 42° ↙ 42° ↙ 37° ↙ 43° ↙ 44° ↙ 44° ↙ 45° ↙ 46° ↙ 47° ↙ 48° ↙ 51° ↙ 54° ↙ 55° ↙ 56° ↙ 57° ↙ 58° ↙ 59° ↙ 60° ↙ 61° ↙ 62° ↙ 62° ↙ 65° ↙ 65° ↙ 64° ↙ 65° ↙ 65° ↙ 66° ↙ 67° ↙ 66° ← 90° ← 86° ← 86° ← 85° ← 85° ↙ 41° ↙ 42° ↙ 39° ↙ 40° ↙ 38° ↙ 38° ↙ 43°
Height 1.51 ft 1.44 ft 2.95 ft 3.21 ft 2.85 ft 3.05 ft 2.92 ft 2.85 ft 2.79 ft 2.59 ft 2.72 ft 2.72 ft 2.26 ft 2.20 ft 2.13 ft 2.10 ft 2.07 ft 1.80 ft 2.03 ft 2.03 ft 2.03 ft 2.00 ft 2.00 ft 1.97 ft 1.97 ft 1.97 ft 1.94 ft 1.94 ft 1.97 ft 1.97 ft 1.97 ft 2.00 ft 2.03 ft 2.03 ft 2.07 ft 2.10 ft 2.13 ft 2.13 ft 2.13 ft 2.16 ft 2.16 ft 2.16 ft 2.16 ft 2.16 ft 2.16 ft 2.20 ft 2.20 ft 2.23 ft 2.26 ft 2.30 ft 2.36 ft 2.39 ft 2.43 ft 2.49 ft 2.53 ft 2.56 ft 2.59 ft 2.66 ft 2.69 ft 2.69 ft 4.43 ft 4.56 ft 4.69 ft 4.85 ft 4.95 ft 5.02 ft 5.08 ft 2.69 ft 2.69 ft 2.66 ft 2.59 ft 2.69 ft 2.66 ft 2.66 ft 2.72 ft 4.17 ft 4.33 ft 4.30 ft 4.30 ft 4.43 ft 4.43 ft 4.46 ft 4.26 ft 2.20 ft 2.16 ft 2.16 ft
Period 13″ 13″ 12″ 12″ 12″ 12″ 12″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 12″ 12″ 12″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 10″ 10″ 10″ 10″ 10″ 10″
Direction ↙ 55° ↙ 57° ↙ 49° ↙ 49° ↙ 49° ↙ 48° ↙ 48° ↙ 47° ↙ 47° ↙ 48° ↙ 45° ↙ 45° ↙ 48° ↙ 48° ↙ 48° ↙ 48° ↙ 48° ↙ 46° ↙ 48° ↙ 49° ↙ 48° ↙ 49° ↙ 49° ↙ 49° ↙ 49° ↙ 49° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 51° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 49° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 50° ↙ 59° ↙ 59° ↙ 58° ↙ 58° ↙ 58° ↙ 58° ↙ 58° ↙ 51° ↙ 51° ↙ 51° ↙ 51° ↙ 51° ↙ 51° ↙ 51° ↙ 52° ↙ 44° ↙ 47° ↙ 48° ↙ 48° ↙ 49° ↙ 49° ↙ 50° ↙ 48° ↙ 50° ↙ 50° ↙ 50°
Height 1.02 ft 0.59 ft 0.52 ft 0.59 ft 0.66 ft 2.13 ft 2.33 ft 0.59 ft 4.36 ft 4.36 ft
Period 12″ 2″ 8″ 8″ 8″ 5″ 6″ 10″ 6″ 6″
Direction ↙ 56° ← 97° ← 89° ← 89° ← 89° ↙ 41° ← 92° ← 90° ↙ 61° ↙ 61°
Height 1.94 ft 2.10 ft 2.92 ft
Period 5″ 5″ 7″
Direction ← 96° ↙ 39° ← 87°
Height 0.62 ft 0.62 ft 0.62 ft 0.59 ft
Period 4″ 4″ 4″ 4″
Direction ↖ 139° ↖ 138° ↖ 138° ↖ 138°

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...