Swell Matrix:
Try the new graphical forecast here!
First time here?
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: 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 14 15 16
Sea Height 3.21 ft 3.21 ft 3.18 ft 3.18 ft 3.18 ft 3.18 ft 3.18 ft 3.18 ft 3.15 ft 3.15 ft 3.15 ft 3.15 ft 3.12 ft 3.15 ft 3.12 ft 3.12 ft 3.08 ft 3.08 ft 3.08 ft 3.08 ft 3.05 ft 3.05 ft 3.02 ft 3.02 ft 3.02 ft 3.02 ft 2.98 ft 3.02 ft 3.02 ft 3.02 ft 3.02 ft 2.98 ft 2.92 ft 2.85 ft 2.79 ft 2.76 ft 2.76 ft 3.12 ft 3.77 ft 4.26 ft 4.66 ft 5.05 ft 5.22 ft 5.18 ft 5.02 ft 4.82 ft 4.62 ft 4.49 ft 4.36 ft 4.30 ft 4.20 ft 4.13 ft 4.00 ft 3.90 ft 3.77 ft 3.64 ft 3.48 ft 3.35 ft 3.21 ft 3.12 ft 3.02 ft 2.92 ft 2.85 ft 2.79 ft 2.69 ft 2.62 ft 2.53 ft 2.46 ft 2.39 ft 2.33 ft 2.26 ft 2.23 ft 2.16 ft 2.13 ft 2.07 ft 2.00 ft 1.94 ft 1.90 ft 1.84 ft 1.80 ft 1.74 ft 1.71 ft 1.67 ft 1.64 ft 1.64 ft 1.61 ft 1.57 ft 1.54 ft 1.51 ft 1.51 ft 1.48 ft 1.44 ft 1.41 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 1.28 ft 1.28 ft 1.28 ft 1.28 ft 1.28 ft 1.28 ft 1.31 ft 1.31 ft 1.31 ft 1.31 ft 1.34 ft 1.38 ft 1.38 ft 1.41 ft 1.44 ft 1.48 ft 1.54 ft 1.57 ft 1.61 ft 1.64 ft 1.67 ft 1.71 ft 1.71 ft 1.74 ft 1.74 ft 1.77 ft 1.77 ft 1.80 ft 1.84 ft 1.84 ft 1.90 ft 1.94 ft 1.97 ft 2.00 ft 2.07 ft 2.20 ft 2.53 ft 2.85 ft 3.21 ft 3.54 ft 3.77 ft 3.84 ft 3.87 ft 3.77 ft 3.74 ft 3.77 ft 3.77 ft 3.64 ft 3.44 ft 3.25 ft 3.05 ft 2.85 ft 2.72 ft 2.59 ft 2.49 ft 2.39 ft 2.30 ft 2.23 ft 2.16 ft 2.10 ft 2.07 ft 2.07 ft 2.03 ft 2.03 ft 2.00 ft 1.97 ft 1.94 ft 1.94 ft 1.90 ft 1.87 ft 1.87 ft 1.84 ft 1.84 ft 1.80 ft 1.74 ft 1.67 ft 1.61 ft 1.51 ft 1.44 ft 1.41 ft 1.38 ft 1.31 ft 1.28 ft 1.25 ft 1.21 ft 1.21 ft 1.18 ft 1.18 ft
Height 0.92 ft 1.05 ft 1.31 ft 1.38 ft 1.38 ft 1.38 ft 1.34 ft 1.34 ft 1.38 ft 1.44 ft 1.15 ft 1.12 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 0.59 ft 0.56 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 ft 0.59 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 0.52 ft 0.52 ft 0.52 ft 0.52 ft 0.52 ft 0.52 ft 0.52 ft 0.52 ft 0.52 ft 0.52 ft 0.49 ft 0.49 ft 0.49 ft 0.49 ft 0.49 ft 0.52 ft 0.59 ft 0.62 ft 0.59 ft 0.52 ft 1.12 ft 1.08 ft 1.15 ft 1.08 ft 1.02 ft 0.98 ft 0.95 ft 0.89 ft 0.85 ft 0.85 ft 0.79 ft
Period 2″ 2″ 3″ 3″ 3″ 3″ 4″ 4″ 4″ 4″ 7″ 7″ 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″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 3″ 3″ 3″ 3″ 3″ 7″ 7″ 7″ 7″ 7″ 7″ 6″ 6″ 6″ 6″ 6″
Direction → 264° → 263° → 264° → 264° → 265° → 266° → 267° → 268° → 269° → 270° → 279° → 279° ↗ 192° ↗ 192° ↗ 192° ↗ 192° ↗ 192° ↗ 192° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 194° ↗ 193° ↗ 194° ↗ 193° ↗ 194° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 193° ↗ 192° ↗ 193° ↙ 78° ↙ 80° ↙ 79° ↙ 77° ↙ 73° → 281° → 282° → 282° → 282° → 282° → 282° → 281° → 281° → 281° → 281° → 281°
Height 1.90 ft 1.94 ft 1.97 ft 2.39 ft 2.33 ft 2.30 ft 2.23 ft 2.33 ft 3.35 ft 3.97 ft 4.46 ft 5.02 ft 5.22 ft 5.18 ft 4.99 ft 4.79 ft 4.59 ft 4.46 ft 4.36 ft 4.26 ft 4.20 ft 4.10 ft 4.00 ft 3.87 ft 3.74 ft 3.61 ft 3.44 ft 3.31 ft 3.18 ft 3.08 ft 2.95 ft 2.89 ft 2.79 ft 2.72 ft 2.62 ft 2.56 ft 2.46 ft 2.39 ft 2.33 ft 2.26 ft 2.23 ft 2.16 ft 2.10 ft 2.03 ft 1.97 ft 1.94 ft 1.87 ft 1.80 ft 1.74 ft 1.71 ft 1.64 ft 1.61 ft 1.57 ft 1.54 ft 0.98 ft 0.98 ft 1.44 ft 1.41 ft 1.38 ft 1.34 ft 1.31 ft 0.85 ft 0.82 ft 0.82 ft 0.79 ft 0.79 ft 0.75 ft 0.75 ft 0.75 ft 0.79 ft 0.79 ft 0.79 ft 0.75 ft 0.79 ft 0.75 ft 0.72 ft 0.62 ft 0.49 ft 0.52 ft 0.56 ft 0.49 ft 0.66 ft 0.56 ft 0.59 ft 0.66 ft 0.72 ft 0.79 ft 0.92 ft 1.02 ft 1.12 ft 1.18 ft 1.28 ft 1.54 ft 1.94 ft 2.39 ft 2.79 ft 3.48 ft 3.71 ft 3.80 ft 3.58 ft 3.51 ft 3.48 ft 3.61 ft 3.61 ft 3.51 ft 3.31 ft 3.08 ft 2.89 ft 2.69 ft 2.56 ft 2.43 ft 2.30 ft 2.30 ft 2.20 ft 2.13 ft 1.21 ft
Period 11″ 11″ 11″ 11″ 11″ 11″ 11″ 9″ 9″ 9″ 10″ 10″ 10″ 10″ 10″ 11″ 11″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 11″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 9″ 10″ 9″ 10″ 15″ 15″ 15″ 2″ 2″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 4″ 4″ 4″ 4″ 5″ 5″ 5″ 6″ 7″ 7″ 8″ 8″ 8″ 8″ 8″ 8″ 9″ 9″ 9″ 9″ 7″
Direction → 278° → 278° → 278° → 279° → 280° → 280° → 280° → 274° → 276° → 277° → 278° → 278° → 278° → 278° → 278° → 278° → 279° → 279° → 279° → 279° → 280° → 280° → 280° → 280° → 280° → 281° → 281° → 281° → 281° → 281° → 281° → 281° → 282° → 282° → 282° → 281° → 281° → 281° → 281° → 281° → 281° → 281° → 282° → 282° → 282° → 282° → 282° → 282° → 282° → 281° → 281° → 281° → 281° → 281° → 284° → 284° → 281° → 281° → 281° → 281° → 281° → 285° → 285° → 285° → 284° → 284° → 285° → 285° → 284° → 284° → 284° → 284° → 284° → 284° → 284° → 285° → 285° → 280° → 280° → 280° → 268° → 272° → 269° → 270° → 272° → 272° → 272° → 272° → 271° → 270° → 269° → 270° → 271° → 271° → 271° → 271° → 274° → 275° → 276° → 276° → 277° → 278° → 280° → 280° → 281° → 281° → 282° → 282° → 282° → 282° → 282° → 282° → 282° → 281° → 281° → 281°
Height 1.48 ft 1.51 ft 1.54 ft 1.54 ft 1.51 ft 1.57 ft 1.44 ft 2.66 ft 2.62 ft 2.56 ft 2.56 ft 2.62 ft 2.66 ft 2.53 ft 2.46 ft 2.46 ft 0.95 ft 0.92 ft 0.92 ft 0.89 ft 0.52 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 0.72 ft 0.72 ft 0.69 ft 0.66 ft 0.66 ft 0.62 ft 0.59 ft 0.59 ft 0.59 ft 0.56 ft 0.56 ft 0.56 ft 0.62 ft 0.62 ft 0.62 ft 0.69 ft 0.69 ft 1.34 ft 1.28 ft 0.89 ft 0.85 ft 0.85 ft 0.82 ft 0.79 ft 0.79 ft 0.75 ft 0.75 ft 0.69 ft 0.66 ft 0.66 ft 2.07 ft 2.00 ft 1.97 ft 1.94 ft 1.94 ft 1.90 ft 1.90 ft 1.87 ft 1.84 ft 1.80 ft 1.80 ft 1.74 ft 1.71 ft 1.64 ft 1.57 ft 1.48 ft 0.75 ft 0.69 ft 0.62 ft 0.52 ft 0.52 ft
Period 15″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 7″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 6″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 5″ 14″ 14″ 14″ 14″ 14″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 11″ 11″ 11″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 10″ 9″ 9″ 9″ 9″ 9″ 9″ 9″
Direction → 281° → 281° → 281° → 280° → 278° → 278° → 279° → 279° → 279° → 279° → 279° → 279° → 279° → 278° → 279° → 279° → 278° → 278° → 278° → 279° → 282° → 279° → 279° → 279° → 278° → 278° → 278° → 278° → 279° → 279° → 279° → 279° → 279° → 279° → 279° → 279° → 279° → 279° → 279° → 279° → 278° → 275° → 275° → 275° → 273° → 272° → 283° → 283° → 282° → 283° → 282° → 283° → 282° → 283° → 283° → 283° → 282° → 283° → 282° → 281° → 281° → 281° → 281° → 281° → 281° → 281° → 282° → 282° → 282° → 282° → 282° → 282° → 282° → 282° → 282° → 285° → 285° → 285° → 286° → 285°
Height 0.69 ft 0.75 ft 0.79 ft 0.82 ft 0.85 ft 0.85 ft 0.49 ft 0.52 ft 0.66 ft 0.69 ft 0.82 ft 1.18 ft 1.25 ft 1.31 ft 1.34 ft 1.38 ft 1.41 ft 1.44 ft 1.61 ft 1.48 ft 1.48 ft 1.51 ft 1.51 ft 1.51 ft 1.51 ft 1.51 ft 1.51 ft 1.51 ft 1.48 ft 1.48 ft 1.44 ft 1.44 ft 1.41 ft 1.41 ft 0.59 ft
Period 5″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 13″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 12″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 9″
Direction → 276° → 285° → 284° → 284° → 284° → 284° → 283° → 282° → 281° → 281° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 281° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283° → 283°
Height 1.18 ft 1.25 ft 1.28 ft 1.34 ft 1.41 ft 1.44 ft 1.64 ft 1.64 ft 1.67 ft 1.77 ft 1.77 ft 1.64 ft 1.57 ft 1.77 ft 1.84 ft 1.84 ft 3.05 ft 3.05 ft 3.02 ft 3.02 ft 2.98 ft 3.02 ft 2.98 ft 2.98 ft 2.95 ft 2.95 ft 2.79 ft 2.76 ft 2.95 ft 2.69 ft 2.62 ft 2.59 ft 2.53 ft 2.46 ft 2.39 ft 2.33 ft 2.30 ft 2.03 ft 1.71 ft 1.54 ft 1.31 ft 0.72 ft 0.75 ft 0.75 ft 0.79 ft 0.79 ft
Period 18″ 18″ 18″ 18″ 17″ 17″ 17″ 17″ 17″ 17″ 16″ 16″ 16″ 16″ 16″ 16″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 15″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 14″ 11″ 11″ 11″ 11″ 11″
Direction → 273° → 273° → 272° → 273° → 274° → 273° → 274° → 274° → 274° → 275° → 276° → 274° → 274° → 276° → 276° → 276° → 278° → 277° → 278° → 278° → 278° → 277° → 278° → 277° → 277° → 277° → 278° → 278° → 276° → 278° → 278° → 278° → 278° → 278° → 278° → 278° → 278° → 279° → 280° → 279° → 279° → 285° → 285° → 285° → 285° → 285°
Height 1.67 ft 1.54 ft 1.41 ft
Period 7″ 7″ 7″
Direction → 281° → 282° → 281°

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...