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Swell Matrix
South Hatteras
Graphical Wave Forecast
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Thu Jan 09
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Swell Height (feet)
Day of Week, AM / PM
Multiple swell forecast for Wed Jan 22: Swell 1: Height: 1.66 feet Period: 7.9 seconds Direction: 20 degrees Swell 2: Height: 1.66 feet Period: 7.9 seconds Direction: 20 degrees Swell 3: Height: 2.67 feet Period: 7.5 seconds Direction: 14 degrees Swell 4: Height: 2.57 feet Period: 5.5 seconds Direction: 286 degrees Swell 5: Height: 2.56 feet Period: 4 seconds Direction: 237 degrees Swell 6: Height: 2.56 feet Period: 4 seconds Direction: 237 degrees... Thu Jan 23: Swell 1: Height: 1.12 feet Period: 8.9 seconds Direction: 134 degrees Swell 2: Height: 1.37 feet Period: 8.6 seconds Direction: 132 degrees Swell 3: Height: 1.37 feet Period: 8.6 seconds Direction: 132 degrees Swell 4: Height: 1.68 feet Period: 5.4 seconds Direction: 284 degrees Swell 5: Height: 1.68 feet Period: 5.4 seconds Direction: 284 degrees Swell 6: Height: 1.12 feet Period: 4.9 seconds Direction: 281 degrees Swell 7: Height: 1.12 feet Period: 4.9 seconds Direction: 281 degrees Swell 8: Height: 2.77 feet Period: 4.2 seconds Direction: 184 degrees Swell 9: Height: 2.21 feet Period: 3.6 seconds Direction: 188 degrees Swell 10: Height: 2.21 feet Period: 3.6 seconds Direction: 188 degrees Swell 11: Height: 2.21 feet Period: 3.6 seconds Direction: 188 degrees... Fri Jan 24: Swell 1: Height: 1.4 feet Period: 8.8 seconds Direction: 127 degrees Swell 2: Height: 2.51 feet Period: 8.8 seconds Direction: 137 degrees Swell 3: Height: 11.75 feet Period: 8.5 seconds Direction: 259 degrees Swell 4: Height: 11.75 feet Period: 8.5 seconds Direction: 259 degrees Swell 5: Height: 7.43 feet Period: 6.3 seconds Direction: 193 degrees... Thu Jan 09: Swell 1: Height: 10.21 feet Period: 8.3 seconds Direction: 345 degrees... Fri Jan 10: Swell 1: Height: 6.12 feet Period: 10.1 seconds Direction: 20 degrees Swell 2: Height: 5.64 feet Period: 10 seconds Direction: 21 degrees Swell 3: Height: 2.63 feet Period: 5.5 seconds Direction: 303 degrees Swell 4: Height: 2.63 feet Period: 5.5 seconds Direction: 303 degrees Swell 5: Height: 1.69 feet Period: 5 seconds Direction: 295 degrees Swell 6: Height: 1.69 feet Period: 5 seconds Direction: 295 degrees... Sat Jan 11: Swell 1: Height: 14.44 feet Period: 9.5 seconds Direction: 263 degrees Swell 2: Height: 2.7 feet Period: 9.1 seconds Direction: 27 degrees Swell 3: Height: 1.59 feet Period: 8.8 seconds Direction: 35 degrees Swell 4: Height: 7.19 feet Period: 6 seconds Direction: 210 degrees... Sun Jan 12: Swell 1: Height: 1.25 feet Period: 14.3 seconds Direction: 53 degrees Swell 2: Height: 1.25 feet Period: 14.3 seconds Direction: 53 degrees Swell 3: Height: 1.22 feet Period: 14.1 seconds Direction: 52 degrees Swell 4: Height: 1.18 feet Period: 13.8 seconds Direction: 52 degrees Swell 5: Height: 1.18 feet Period: 13.8 seconds Direction: 52 degrees Swell 6: Height: 1.18 feet Period: 13.8 seconds Direction: 52 degrees Swell 7: Height: 3.28 feet Period: 8.2 seconds Direction: 14 degrees Swell 8: Height: 3.28 feet Period: 8.2 seconds Direction: 14 degrees Swell 9: Height: 3.28 feet Period: 8.2 seconds Direction: 14 degrees Swell 10: Height: 4.85 feet Period: 7.9 seconds Direction: 238 degrees Swell 11: Height: 3.51 feet Period: 7.3 seconds Direction: 19 degrees Swell 12: Height: 3.51 feet Period: 7.3 seconds Direction: 19 degrees Swell 13: Height: 3.51 feet Period: 7.3 seconds Direction: 19 degrees Swell 14: Height: 2.76 feet Period: 6.8 seconds Direction: 226 degrees Swell 15: Height: 2.76 feet Period: 6.8 seconds Direction: 226 degrees Swell 16: Height: 2.06 feet Period: 5.5 seconds Direction: 319 degrees Swell 17: Height: 2.06 feet Period: 5.5 seconds Direction: 319 degrees Swell 18: Height: 2.06 feet Period: 5.5 seconds Direction: 319 degrees... Mon Jan 13: Swell 1: Height: 1.22 feet Period: 12.9 seconds Direction: 52 degrees Swell 2: Height: 1.25 feet Period: 12.5 seconds Direction: 51 degrees Swell 3: Height: 1.25 feet Period: 12.5 seconds Direction: 51 degrees Swell 4: Height: 2.3 feet Period: 7.4 seconds Direction: 23 degrees Swell 5: Height: 1.94 feet Period: 7.2 seconds Direction: 27 degrees Swell 6: Height: 1.94 feet Period: 7.2 seconds Direction: 27 degrees Swell 7: Height: 1.21 feet Period: 6.9 seconds Direction: 33 degrees Swell 8: Height: 1.21 feet Period: 6.9 seconds Direction: 33 degrees Swell 9: Height: 4.49 feet Period: 5.1 seconds Direction: 274 degrees... Tue Jan 14: Swell 1: Height: 1.4 feet Period: 11.9 seconds Direction: 54 degrees Swell 2: Height: 1.84 feet Period: 11.6 seconds Direction: 56 degrees Swell 3: Height: 1.84 feet Period: 11.6 seconds Direction: 56 degrees Swell 4: Height: 5.83 feet Period: 6.6 seconds Direction: 334 degrees Swell 5: Height: 5.83 feet Period: 6.6 seconds Direction: 334 degrees Swell 6: Height: 6.1 feet Period: 6.5 seconds Direction: 311 degrees... Wed Jan 15: Swell 1: Height: 1.68 feet Period: 11.7 seconds Direction: 56 degrees Swell 2: Height: 5.29 feet Period: 8.3 seconds Direction: 13 degrees Swell 3: Height: 5.29 feet Period: 8.3 seconds Direction: 13 degrees Swell 4: Height: 9.05 feet Period: 7.4 seconds Direction: 320 degrees Swell 5: Height: 5.5 feet Period: 6.8 seconds Direction: 305 degrees Swell 6: Height: 5.5 feet Period: 6.8 seconds Direction: 305 degrees... Thu Jan 16: Swell 1: Height: 5.29 feet Period: 8.3 seconds Direction: 19 degrees Swell 2: Height: 5.29 feet Period: 8.3 seconds Direction: 19 degrees Swell 3: Height: 8.39 feet Period: 7.1 seconds Direction: 339 degrees Swell 4: Height: 3.77 feet Period: 6 seconds Direction: 310 degrees... Fri Jan 17: Swell 1: Height: 2.76 feet Period: 7.8 seconds Direction: 26 degrees Swell 2: Height: 2.76 feet Period: 7.8 seconds Direction: 26 degrees Swell 3: Height: 2.15 feet Period: 7.5 seconds Direction: 28 degrees Swell 4: Height: 4.62 feet Period: 5.1 seconds Direction: 252 degrees Swell 5: Height: 2.79 feet Period: 3.9 seconds Direction: 257 degrees Swell 6: Height: 2.79 feet Period: 3.9 seconds Direction: 257 degrees Swell 7: Height: 2.79 feet Period: 3.9 seconds Direction: 257 degrees... Sat Jan 18: Swell 1: Height: 4.21 feet Period: 6 seconds Direction: 269 degrees Swell 2: Height: 2.92 feet Period: 4.9 seconds Direction: 241 degrees Swell 3: Height: 2.92 feet Period: 4.9 seconds Direction: 241 degrees... Sun Jan 19: Swell 1: Height: 8.39 feet Period: 7.4 seconds Direction: 237 degrees Swell 2: Height: 8.01 feet Period: 6.9 seconds Direction: 234 degrees... Mon Jan 20: Swell 1: Height: 8.85 feet Period: 7.8 seconds Direction: 255 degrees Swell 2: Height: 10.06 feet Period: 7.8 seconds Direction: 258 degrees... Tue Jan 21: Swell 1: Height: 13.06 feet Period: 9.1 seconds Direction: 287 degrees Swell 2: Height: 8.77 feet Period: 7.7 seconds Direction: 305 degrees...
Instructions
Circle size corresponds to wave period length.
For a given swell height, a longer-period wave will break into larger surf than a short period wave
.
Hover or tap a circle for detailed swell train information
Circle color indicates the direction the swell is coming from
The line indicates estimated surf height. It assumes swell hitting the shore at a 90 degree angle at a well exposed-spot.
On small screens, swipe or scroll horizontally to see all the days in the forecast
Surf Height Calculator:
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Data run: 2025-01-09_12_41002