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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 Sunday 10 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
29.8° C
(Which is slightly warmer than usual)How big are the waves at Backwash today?
The current surf forecast for Backwash at 12AM is: 1.2m 16s primary swell from a South-southwest direction and 0.7m 11s secondary swell from a South-southwest direction (forecast issued at 05:00pm May 10). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | - | - |
| Afternoon (11 May) | 3.5ft (1.1m) | 16s |
| Evening (11 May) | 4ft (1.2m) | 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 27mm), heaviest during Sun afternoon. Warm (max 30°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 10 | SSW 17 | |
643 | 635 | 733 | 733 | 627 | 620 | 475 | 387 | 358 | 344 | 339 | 334 | 272 | 268 | 268 | 268 | 183 | 178 | 168 | 161 | 158 | 158 | 141 | 197 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | glassy | glassy | cross | cross-off | glassy | cross-on | cross-on | cross | glassy | glassy | glassy | glassy | glassy | cross | cross-off | cross-off | glassy | off | cross-off | cross-off | glassy | cross | |
High Tide | 8:58PM2.21m | 9:43AM2.37m | 10:06PM2.23m | 10:41AM2.50m | 11:10PM2.33m | 11:34AM2.68m | ||||||||||||||||||
Low Tide | 2:57PM1.07m | 3:17AM0.90m | 4:04PM0.99m | 4:16AM0.87m | 5:05PM0.83m | 5:13AM0.78m | ||||||||||||||||||
 |  | |  | |  |  | | |  | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — |
 | 5:43 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | 5:44 |
1 | 5 | 4 | — | — | — | — | — | — | — | 1 | — | 5 | 2 | 1 | 2 | 1 | 2 | 3 | — | — | — | — | — | |
Temp °C | 30 | 28 | 28 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 26 | 26 | 26 | 28 | 29 |
33 | 32 | 32 | 31 | 30 | 30 | 32 | 32 | 31 | 32 | 31 | 32 | 31 | 31 | 33 | 33 | 32 | 32 | 31 | 30 | 30 | 30 | 33 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 10 | SSW 11 | SSW 11 | S 11 | S 10 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 |
 kJ | 643 | 635 | 733 | 733 | 627 | 620 | 475 | 387 | 358 | 344 | 339 | 334 | 272 | 144 | 150 | 150 | 146 | 133 | 143 | 135 | 127 | 130 | 141 | 130 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 271 | 289 | 156 | 103 | 91 | 121 | 176 | 179 | 158 | 150 | 141 | 133 | 139 | 268 | 268 | 268 | 183 | 178 | 168 | 161 | 158 | 158 | 118 | 118 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 11 | SSW 12 | SSW 12 | SSW 12 | — | — | W 13 | W 14 | — | S 21 | W 9 | SW 20 | SW 20 | SW 20 | SSW 19 | SSW 19 | SW 19 | SW 18 | SW 18 | SSW 18 | SSW 18 | SSW 17 |
| kJ | — | — | 30 | 52 | 47 | 45 | — | — | 3 | 4 | — | 8 | 2 | 16 | 15 | 15 | 37 | 36 | 92 | 85 | 82 | 123 | 121 | 197 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 160 | 19 | 0 | 0 | 2 | 0 | 0 | 160 | 165 | 19 | 0 | 0 | 0 | 0 | 0 | 160 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 235 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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