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Dunes surfForecast / Puerto Rico / Puerto Rico
48hr Weather and Surf, issued 1 pm Monday 18 May 2026 ASTForecast update in hr min s Forecast update imminent
Dunes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dunes sea temperature is
28.2° C
(Which is slightly warmer than usual)How big are the waves at Dunes today?
The current surf forecast for Dunes at 4PM is: 2.0m 7s primary swell from a East-northeast direction and 0.3m 10s secondary swell from a Northeast direction, 0.1m 9s secondary swell from a North direction (forecast issued at 01:00pm May 18). The wind direction is predicted to be cross-shore.
| Time (AST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.5m) | 7s |
| Afternoon (18 May) | 6.5ft (2.0m) | 7s |
| Evening (18 May) | 6ft (1.9m) | 7s |
Table - waves today at Dunes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Wed afternoon. Warm (max 29°C on Thu morning, min 23°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 7 | ENE 6 | ENE 7 | E 7 | ENE 8 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
219 | 298 | 350 | 366 | 383 | 365 | 341 | 294 | 286 | 460 | 324 | 437 | 414 | 414 | 414 | 318 | 359 | 438 | 472 | 469 | 383 | 341 | 295 | 295 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-off | cross | |
High Tide | 9:13AM0.32m | 10:35PM0.68m | 10:11AM0.32m | 11:30PM0.66m | 11:13AM0.33m | 00:25AM0.63m | ||||||||||||||||||
Low Tide | 3:10PM-0.03m | 5:27AM0.16m | 4:05PM-0.02m | 6:24AM0.16m | 5:05PM0.02m | 7:19AM0.16m | ||||||||||||||||||
 |  | |  |  | | |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — |
 | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | 6:55 |
— | 1 | 1 | — | — | — | — | — | — | 3 | 4 | 3 | 1 | — | — | 1 | — | 4 | 5 | 3 | — | — | — | — | |
Temp °C | 29 | 27 | 27 | 27 | 25 | 24 | 24 | 25 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 26 | 28 | 27 | 27 | 26 | 24 | 24 | 23 | 26 |
28 | 25 | 25 | 26 | 25 | 24 | 24 | 25 | 28 | 26 | 27 | 26 | 25 | 24 | 24 | 26 | 27 | 25 | 25 | 24 | 24 | 24 | 23 | 26 | |
Swell 1 Height (m) Direction Period (s) | NE 10 | N 10 | NE 10 | NE 10 | NE 10 | NE 10 | NNE 10 | NE 10 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 6 | N 6 | N 7 | — | — | — | — | ENE 8 | — |
 kJ | 37 | 2 | 17 | 16 | 15 | 15 | 10 | 15 | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | 295 | — |
Swell 2 Height (m) Direction Period (s) | — | — | N 9 | N 9 | N 8 | N 8 | N 8 | N 8 | N 8 | — | — | — | — | — | — | — | — | N 6 | — | — | — | — | — | — |
| kJ | — | — | 2 | 2 | 6 | 5 | 5 | 5 | 4 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 6 | ENE 7 | E 7 | ENE 8 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | ENE 8 |
| kJ | 219 | 298 | 350 | 366 | 383 | 365 | 341 | 294 | 286 | 460 | 324 | 437 | 414 | 414 | 414 | 318 | 359 | 438 | 472 | 469 | 383 | 341 | — | 295 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 26 | 879 | 878 | 13 | 13 | 26 | 20 | 84 | 130 | 130 | 13 | 21 | 341 | 13 | 84 | 130 | 26 | 878 | 28 | 341 | 13 | 35 | 20 | 130 |
Best forecast wave conditions in Puerto Rico | ||||||||||||||||||||||||
Best forecast wave conditions in Puerto Rico | ||||||||||||||||||||||||
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