Swell Matrix:
Try the new graphical forecast here!
First time here?
hide labels Wednesday, August 12 Thursday, August 13 Friday, August 14 Saturday, August 15 Sunday, August 16 Monday, August 17 Tuesday, August 18 Wednesday, August 19 Thursday, Aug 20
Hour: 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 20 21 22 23 0 1
Sea Height 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.26 ft 0.26 ft 0.26 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.30 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.26 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.23 ft 0.26 ft 0.30 ft 0.36 ft 0.46 ft 0.52 ft 0.59 ft 0.66 ft 0.66 ft 0.66 ft 0.62 ft 0.59 ft 0.52 ft 0.49 ft 0.49 ft 0.52 ft 0.56 ft 0.56 ft 0.56 ft 0.52 ft 0.49 ft 0.46 ft 0.46 ft 0.46 ft 0.46 ft 0.52 ft 0.56 ft 0.59 ft 0.59 ft 0.59 ft 0.56 ft 0.56 ft 0.52 ft 0.49 ft 0.49 ft 0.46 ft 0.46 ft 0.46 ft 0.46 ft 0.52 ft 0.62 ft 0.66 ft 0.66 ft 0.66 ft 0.66 ft 0.62 ft 0.62 ft 0.62 ft 0.62 ft 0.66 ft 0.69 ft 0.72 ft 0.72 ft 0.75 ft 0.75 ft 0.75 ft 0.75 ft 0.79 ft 0.79 ft 0.79 ft 0.79 ft 0.79 ft 0.79 ft 0.82 ft 0.89 ft 0.92 ft 0.92 ft 0.95 ft 0.92 ft 0.89 ft 0.82 ft 0.79 ft 0.79 ft 0.75 ft 0.75 ft 0.72 ft 0.69 ft 0.69 ft 0.69 ft 0.69 ft 0.75 ft 0.79 ft 0.82 ft 0.85 ft 0.85 ft 0.89 ft 0.89 ft 0.89 ft 0.89 ft 0.89 ft 0.85 ft 0.85 ft 0.82 ft 0.82 ft 0.82 ft 0.82 ft 0.82 ft 0.82 ft 0.85 ft 0.85 ft 0.85 ft 0.85 ft 0.82 ft 0.82 ft 0.82 ft 0.85 ft 0.89 ft 0.92 ft 0.98 ft 1.05 ft 1.08 ft 1.15 ft 1.15 ft 1.18 ft 1.18 ft 1.21 ft 1.25 ft 1.31 ft 1.38 ft 1.41 ft 1.41 ft 1.38 ft 1.34 ft 1.31 ft 1.28 ft 1.25 ft 1.21 ft 1.18 ft 1.12 ft 1.12 ft 1.08 ft 1.12 ft 1.15 ft 1.18 ft 1.18 ft 1.18 ft 1.15 ft 1.12 ft 1.12 ft 1.08 ft 1.05 ft 1.02 ft 0.98 ft 0.95 ft 0.95 ft 0.92 ft
Height 0.49 ft 0.52 ft 0.56 ft 0.56 ft 0.52 ft 0.49 ft 0.52 ft 0.56 ft 0.56 ft 0.56 ft 0.56 ft 0.52 ft 0.49 ft 0.59 ft 0.62 ft 0.66 ft 0.69 ft 0.69 ft 0.72 ft 0.72 ft 0.72 ft 0.72 ft 0.75 ft 0.75 ft 0.75 ft 0.75 ft 0.75 ft 0.72 ft 0.72 ft 0.85 ft 0.89 ft 0.92 ft 0.92 ft 0.59 ft 0.52 ft 0.49 ft 0.52 ft 0.52 ft 0.62 ft 0.66 ft 0.69 ft 0.69 ft 0.72 ft 0.72 ft 0.72 ft 0.69 ft 0.75 ft 0.79 ft 0.85 ft 0.92 ft 0.98 ft 1.05 ft 1.12 ft 1.15 ft 1.18 ft 1.18 ft 1.21 ft 1.25 ft 1.31 ft 1.38 ft 1.41 ft 1.41 ft 1.38 ft 1.34 ft 1.31 ft 1.28 ft 1.25 ft 1.21 ft 1.18 ft 1.12 ft 1.12 ft 1.08 ft 1.05 ft 1.02 ft
Period 4″ 4″ 4″ 4″ 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″ 4″ 4″ 4″ 4″ 4″ 4″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 2″ 2″
Direction ↖ 169° ↖ 169° ↖ 168° ↖ 167° ↖ 166° ↖ 165° ↖ 165° ↖ 166° ↖ 166° ↖ 166° ↖ 166° ↖ 166° ↖ 165° ↘ 306° ↘ 307° ↘ 308° ↘ 309° ↘ 309° ↘ 308° ↘ 308° ↘ 307° ↘ 306° ↘ 306° ↘ 305° ↘ 304° ↘ 304° ↘ 303° ↘ 303° ↘ 302° ↘ 295° ↘ 294° ↘ 295° ↘ 296° ↘ 300° ↘ 300° → 275° → 278° → 278° ↗ 258° ↗ 259° ↗ 257° ↗ 254° ↗ 255° ↗ 254° ↗ 251° ↗ 245° ↗ 245° ↗ 242° ↗ 239° ↗ 236° ↗ 235° ↗ 236° ↗ 240° ↗ 242° ↗ 245° ↗ 245° ↗ 244° ↗ 244° ↗ 245° ↗ 247° ↗ 248° ↗ 250° ↗ 251° ↗ 252° ↗ 253° ↗ 254° ↗ 255° ↗ 256° ↗ 258° ↗ 260° ↗ 260° ↗ 259° ↗ 234° ↗ 233°
Height 0.69 ft 0.69 ft 0.56 ft 0.79 ft 0.75 ft 0.75 ft 0.72 ft 0.72 ft 0.69 ft 0.66 ft 0.69 ft 0.66 ft 0.75 ft 0.79 ft 0.82 ft 0.85 ft 0.82 ft 0.82 ft 0.79 ft 0.75 ft 0.72 ft 0.72 ft 0.69 ft 0.66 ft 0.82 ft 0.82 ft 0.82 ft 0.82 ft 0.69 ft 0.56 ft 0.52 ft 0.49 ft 0.49 ft 0.92 ft 0.89 ft 0.85 ft 0.85 ft 0.75 ft 0.49 ft
Period 2″ 2″ 4″ 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″ 4″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″ 4″
Direction ↘ 296° ↘ 298° ↘ 303° ↘ 302° ↘ 302° ↘ 302° ↘ 302° ↘ 302° ↘ 302° ↘ 301° ↘ 302° ↘ 301° ↘ 302° ↘ 302° ↘ 301° ↘ 301° ↘ 301° ↘ 301° ↘ 300° ↘ 300° ↘ 300° ↘ 299° ↘ 299° ↘ 298° ↘ 291° → 290° → 288° → 285° ↘ 297° ↘ 299° ↘ 298° ↘ 298° ↘ 298° → 278° → 281° → 287° → 288° → 281° ↘ 310°
Height 0.59 ft 0.72 ft 0.82 ft 0.85 ft 0.82 ft 0.79 ft 0.79 ft 0.75 ft 0.72 ft 0.72 ft 0.72 ft 0.69 ft 0.66 ft
Period 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″ 2″
Direction ↗ 193° ↗ 197° ↗ 202° ↗ 202° ↗ 201° ↗ 204° ↗ 206° ↗ 203° ↗ 199° ↗ 200° ↗ 199° ↗ 195° ↗ 192°
Height 0.79 ft 0.75 ft 0.72 ft 0.72 ft 0.69 ft 0.66 ft 0.66 ft 0.62 ft
Period 3″ 3″ 3″ 3″ 3″ 3″ 3″ 3″
Direction → 290° ↘ 291° → 290° → 290° ↘ 291° ↘ 291° ↘ 291° ↘ 291°
Height
Period
Direction
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...