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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 Tuesday 19 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
30.1° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Backwash today?
The current surf forecast for Backwash at 9PM is: 0.7m 16s primary swell from a Southwest direction and 0.6m 12s secondary swell from a South-southwest direction (forecast issued at 05:00pm May 19). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 2.5ft (0.7m) | 18s |
| Evening (19 May) | 2.5ft (0.7m) | 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 29mm), heaviest during Wed afternoon. Warm (max 30°C on Wed morning, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 18 | SSW 18 | SW 16 | SW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 15 | SW 15 | SSW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SW 15 | |
273 | 204 | 268 | 261 | 326 | 326 | 127 | 173 | 175 | 318 | 203 | 188 | 223 | 146 | 148 | 232 | 239 | 236 | 229 | 223 | 176 | 176 | 144 | 171 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | glassy | glassy | cross-off | cross-off | glassy | cross | cross-off | off | off | glassy | cross-off | cross | glassy | cross-on | cross-on | cross-on | off | cross-off | glassy | cross-off | glassy | cross-on | |
High Tide | 4:32PM3.20m | 5:10AM3.01m | 5:25PM3.07m | 6:05AM2.93m | 6:20PM2.90m | 7:02AM2.84m | ||||||||||||||||||
Low Tide | 10:53PM-0.04m | 11:14AM0.30m | 11:45PM0.08m | 12:11PM0.42m | 00:40AM0.24m | |||||||||||||||||||
 |  | |  | |  | | | |  | |  | |  | | | | | | | | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — |
 | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | 5:45 |
— | — | — | 1 | 2 | 1 | 1 | — | 2 | 8 | 2 | — | — | — | — | — | — | 5 | 7 | — | — | — | — | — | |
Temp °C | 29 | 28 | 28 | 27 | 27 | 27 | 29 | 30 | 30 | 27 | 26 | 26 | 26 | 26 | 28 | 29 | 29 | 28 | 23 | 24 | 25 | 25 | 28 | 29 |
33 | 32 | 33 | 32 | 32 | 32 | 35 | 34 | 34 | 30 | 30 | 31 | 30 | 30 | 32 | 32 | 32 | 32 | 24 | 27 | 29 | 28 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SW 16 | SW 16 | SSW 16 | SSW 16 | SW 16 | SSW 13 | SSW 13 | SSW 16 | SW 16 | SW 15 | SW 15 | SSW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | S 8 | S 8 | S 8 |
 kJ | 273 | 204 | 268 | 261 | 326 | 326 | 127 | 116 | 120 | 318 | 203 | 188 | 223 | 146 | 148 | 232 | 239 | 236 | 229 | 223 | 176 | 49 | 50 | 48 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SW 11 | SSW 12 | SSW 16 | SSW 16 | SSW 7 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 6 | S 7 | SSW 6 | SSW 11 | SSW 8 | S 8 | S 8 | SW 15 | SSW 15 | SW 15 |
| kJ | 96 | 94 | 96 | 99 | 49 | 31 | 52 | 173 | 175 | 15 | 56 | 36 | 35 | 35 | 13 | 9 | 10 | 66 | 37 | 45 | 48 | 176 | 144 | 171 |
Swell 3 Height (m) Direction Period (s) | SSW 7 | SW 14 | SSW 7 | S 7 | S 7 | S 7 | SW 14 | S 7 | SSW 7 | S 12 | SSW 14 | SSW 7 | SSW 6 | SSW 6 | SW 11 | SW 11 | SW 11 | S 7 | S 7 | SSW 11 | SSW 11 | S 10 | SSW 10 | S 10 |
| kJ | 18 | 103 | 17 | 15 | 15 | 15 | 47 | 15 | 15 | 11 | 66 | 10 | 8 | 13 | 33 | 30 | 30 | 4 | 8 | 11 | 11 | 8 | 11 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 160 | 0 | 0 | 0 | 0 | 0 | 0 | 156 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 160 | 98 | 18 | 0 | 0 | 0 | 0 | 0 | 160 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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