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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 11 am Sunday 17 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
29.9° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Backwash today?
The current surf forecast for Backwash at 4PM is: 0.9m 14s primary swell from a South-southwest direction and 0.5m 6s secondary swell from a South direction (forecast issued at 11:00am May 17). The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 3ft (0.9m) | 14s |
| Afternoon (17 May) | 3ft (0.9m) | 14s |
| Evening (17 May) | 3ft (0.9m) | 14s |
Table - waves today at Backwash. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Warm (max 29°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 13 | SSW 17 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 16 | SW 16 | SSW 16 | SSW 16 | |
325 | 325 | 325 | 321 | 312 | 286 | 225 | 222 | 222 | 219 | 219 | 175 | 149 | 195 | 280 | 207 | 273 | 243 | 273 | 204 | 334 | 261 | 326 | 226 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross | cross | cross | glassy | glassy | glassy | cross-off | glassy | cross-on | cross-on | glassy | glassy | off | glassy | cross | glassy | cross-on | cross | cross | glassy | glassy | glassy | glassy | |
High Tide | 2:52PM3.26m | 3:28AM3.02m | 3:42PM3.27m | 4:18AM3.04m | 4:32PM3.20m | 5:10AM3.01m | ||||||||||||||||||
Low Tide | 8:39AM0.25m | 9:14PM-0.08m | 9:29AM0.20m | 10:03PM-0.10m | 10:21AM0.21m | 10:53PM-0.04m | ||||||||||||||||||
 | | |  | |  |  |  | | | | | | | |  | | | | | | | | | |
 | 5:13 | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — |
 | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | 5:45 |
— | — | — | 1 | 5 | — | — | — | — | — | — | 1 | — | — | — | 2 | — | — | — | — | — | 2 | 6 | 1 | |
Temp °C | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 28 | 27 | 26 | 27 |
33 | 32 | 32 | 32 | 32 | 32 | 30 | 30 | 33 | 32 | 32 | 33 | 32 | 32 | 31 | 30 | 33 | 33 | 32 | 32 | 33 | 32 | 31 | 33 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 13 | SSW 13 | SSW 13 | SSW 18 | SSW 12 | SSW 12 | SSW 18 | SSW 18 | SSW 18 | SSW 16 | SW 16 | SSW 16 | SSW 16 |
 kJ | 325 | 325 | 325 | 321 | 312 | 286 | 225 | 222 | 222 | 219 | 219 | 175 | 149 | 142 | 280 | 131 | 129 | 243 | 273 | 204 | 334 | 261 | 326 | 226 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | S 6 | SSW 6 | S 6 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 16 | S 7 | SSW 17 | SSW 12 | SSW 18 | SSW 18 | SSW 12 | SSW 12 | SW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 6 |
| kJ | 20 | 20 | 19 | 17 | 10 | 17 | 27 | 27 | 27 | 26 | 26 | 175 | 27 | 195 | 133 | 207 | 273 | 96 | 96 | 69 | 56 | 99 | 49 | 14 |
Swell 3 Height (m) Direction Period (s) | SSW 20 | SSW 19 | SSW 19 | SSW 18 | S 7 | SW 18 | SSW 18 | SSW 18 | SW 18 | SSW 17 | SW 16 | S 7 | SW 16 | S 8 | S 8 | S 7 | S 7 | S 7 | S 6 | S 7 | S 7 | S 7 | SSW 7 | SSW 12 |
| kJ | 37 | 37 | 36 | 33 | 17 | 81 | 124 | 124 | 78 | 111 | 130 | 26 | 127 | 29 | 30 | 28 | 28 | 26 | 18 | 24 | 24 | 24 | 15 | 53 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 160 | 110 | 98 | 0 | 0 | 0 | 0 | 0 | 160 | 164 | 0 | 0 | 0 | 0 | 2 | 0 | 165 | 160 | 16 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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