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Backwash Surf Forecast
/ Golfo Dulce (13 surf breaks) /
Surf Forecasts:
Backwash surfForecast / Golfo Dulce / Costa Rica
48hr Weather and Surf, issued 5 pm Wednesday 13 May 2026 CSTForecast update in hr min s Forecast update imminent
Backwash surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backwash sea temperature is
29.7° C
(Which is slightly warmer than usual)How big are the waves at Backwash today?
The current surf forecast for Backwash at 11PM is: 0.9m 16s primary swell from a South-southwest direction and 0.7m 10s secondary swell from a South direction (forecast issued at 05:00pm May 13). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | - | - |
| Afternoon (13 May) | 2ft (0.6m) | 17s |
| Evening (13 May) | 3ft (0.9m) | 16s |
Table - waves today at Backwash. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Wed night. Warm (max 30°C on Wed afternoon, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 17 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | |
193 | 274 | 447 | 441 | 436 | 425 | 409 | 461 | 496 | 496 | 496 | 496 | 443 | 362 | 357 | 425 | 419 | 419 | 337 | 323 | 313 | 309 | 309 | 222 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | glassy | glassy | glassy | cross-off | glassy | cross | cross-off | cross-off | off | off | cross-off | cross | glassy | cross | cross | cross-off | off | off | off | glassy | glassy | cross-off | |
High Tide | 00:07AM2.47m | 12:25PM2.87m | 1:00AM2.64m | 1:14PM3.05m | 1:50AM2.81m | |||||||||||||||||||
Low Tide | 6:00PM0.62m | 6:07AM0.65m | 6:50PM0.39m | 6:59AM0.50m | 7:39PM0.18m | 7:49AM0.35m | ||||||||||||||||||
 |  |  | |  |  | | | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — |
 | 5:44 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | 5:44 |
1 | 4 | 8 | 1 | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | 1 | 1 | — | — | 1 | — | — | 1 | |
Temp °C | 30 | 28 | 28 | 27 | 26 | 26 | 28 | 29 | 30 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 |
33 | 32 | 33 | 32 | 30 | 30 | 33 | 32 | 33 | 32 | 31 | 32 | 30 | 31 | 33 | 32 | 32 | 32 | 31 | 32 | 30 | 31 | 33 | 32 | |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
 kJ | 98 | 96 | 447 | 441 | 436 | 425 | 409 | 461 | 496 | 496 | 496 | 496 | 443 | 362 | 357 | 425 | 419 | 419 | 337 | 323 | 313 | 309 | 309 | 222 |
Swell 2 Height (m) Direction Period (s) | SSW 17 | SW 16 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 |
| kJ | 193 | 274 | 94 | 70 | 68 | 66 | 66 | 66 | 48 | 43 | 42 | 42 | 43 | 45 | 46 | 46 | 46 | 47 | 29 | 29 | 28 | 27 | 27 | 27 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | W 11 | W 11 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 15 | W 15 | W 15 | W 15 | W 14 | S 20 | S 20 | S 20 | W 14 | SSW 18 | SSW 18 | SSW 18 | W 12 | SSW 16 |
| kJ | 120 | 118 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 7 | 7 | 7 | 4 | 31 | 31 | 31 | 3 | 52 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 150 | 0 | 0 | 0 | 0 | 0 | 0 | 160 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 156 | 339 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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