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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 Thursday 21 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
30.0° 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 1AM is: 0.7m 15s primary swell from a Southwest direction and 0.6m 8s secondary swell from a South direction (forecast issued at 05:00pm May 21). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 2ft (0.6m) | 15s |
| Afternoon (22 May) | 2ft (0.6m) | 15s |
| Evening (22 May) | 2ft (0.6m) | 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 19mm), heaviest on Thu night. Warm (max 30°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SW 15 | SW 15 | SSW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 13 | SW 13 | SW 13 | SW 19 | SW 19 | SW 18 | |
239 | 236 | 229 | 223 | 176 | 176 | 144 | 171 | 171 | 136 | 162 | 160 | 133 | 133 | 160 | 92 | 103 | 125 | 85 | 84 | 94 | 175 | 170 | 159 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | off | glassy | glassy | cross | glassy | cross | cross | cross-off | off | off | glassy | glassy | glassy | cross | cross-off | off | off | off | cross-off | glassy | glassy | cross | |
High Tide | 6:20PM2.90m | 7:02AM2.84m | 7:19PM2.71m | 8:03AM2.74m | 8:23PM2.54m | 9:06AM2.67m | ||||||||||||||||||
Low Tide | 12:11PM0.42m | 00:40AM0.24m | 1:12PM0.57m | 1:38AM0.41m | 2:18PM0.68m | 2:39AM0.57m | ||||||||||||||||||
 |  |  | | |  | | | | | | |  | | |  | | |  | | | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — |
 | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | 5:45 |
— | 3 | — | 1 | 4 | 1 | — | — | — | 1 | — | — | — | 1 | 2 | — | 1 | 1 | — | — | 1 | 1 | 1 | 1 | |
Temp °C | 30 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 |
33 | 33 | 32 | 32 | 30 | 30 | 33 | 33 | 32 | 32 | 32 | 32 | 31 | 30 | 33 | 32 | 32 | 32 | 32 | 31 | 30 | 31 | 33 | 32 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | S 8 | S 8 | S 8 | S 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
 kJ | 239 | 236 | 229 | 223 | 176 | 176 | 50 | 49 | 69 | 71 | 76 | 73 | 90 | 66 | 84 | 84 | 87 | 84 | 66 | 68 | 66 | 66 | 64 | 48 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 6 | S 8 | S 8 | S 8 | S 8 | SSW 15 | SW 15 | SW 15 | SSW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 13 | SW 13 | SW 13 | SW 19 | SW 19 | SW 18 |
| kJ | 10 | 11 | 34 | 33 | 48 | 49 | 144 | 171 | 171 | 136 | 162 | 160 | 133 | 133 | 160 | 92 | 91 | 125 | 85 | 84 | 83 | 175 | 170 | 159 |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 11 | S 7 | S 7 | SSW 11 | S 10 | SSW 10 | S 10 | S 16 | SSW 18 | S 16 | S 16 | S 16 | S 12 | S 12 | SW 16 | SSW 16 | SW 13 | SW 16 | SW 16 | SW 16 | SW 13 | SW 14 | SW 14 |
| kJ | 30 | 18 | 9 | 4 | 11 | 8 | 11 | 19 | 21 | 31 | 20 | 20 | 20 | 11 | 11 | 67 | 103 | 85 | 66 | 67 | 94 | 82 | 97 | 103 |
Wind waves Height (m) Direction Period (s) | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 160 | 0 | 0 | 0 | 0 | 2 | 0 | 156 | 129 | 0 | 0 | 0 | 0 | 0 | 0 | 160 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 340 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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