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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 31 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 1.6°C warmer than normal for this time of year)How big are the waves at Backwash today (31 May):
- Afternoon surf: Afternoon surf (31 May, local time) - 5ft (1.5m), 14s period with SSW swell.
- Evening surf: Evening surf (31 May, local time) - 4ft (1.2m), 19s period with SW swell.
The current surf forecast for Backwash at 10PM is: 1.2m 19s primary swell from a Southwest direction and 1.4m 14s secondary swell from a South-southwest direction (forecast issued at 05:00pm May 31). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | - | - |
| Afternoon (31 May) | 5ft (1.5m) | 14s |
| Evening (31 May) | 4ft (1.2m) | 19s |
Table - waves today at Backwash. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 41mm), heaviest during Tue afternoon. Warm (max 30°C on Tue afternoon, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 14 | SW 19 | SW 19 | SSW 18 | SW 18 | SW 18 | SW 18 | SSW 18 | SW 17 | SW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 15 | |
886 | 1088 | 1066 | 903 | 926 | 905 | 1249 | 1399 | 1235 | 1221 | 1107 | 907 | 1230 | 843 | 832 | 832 | 729 | 657 | 649 | 863 | 576 | 482 | 482 | 489 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | glassy | glassy | glassy | glassy | glassy | cross | cross-off | off | glassy | glassy | glassy | glassy | glassy | cross | cross | cross | glassy | off | glassy | glassy | glassy | cross | |
High Tide | 2:45PM2.76m | 3:19AM2.60m | 3:23PM2.76m | 3:58AM2.60m | 4:01PM2.74m | 4:37AM2.59m | ||||||||||||||||||
Low Tide | 9:06PM0.36m | 9:16AM0.64m | 9:44PM0.35m | 9:55AM0.65m | 10:22PM0.38m | 10:34AM0.69m | ||||||||||||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | | |  | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — |
 | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | 5:47 |
2 | 1 | — | — | 1 | — | 1 | 3 | 3 | 2 | 3 | 2 | 1 | 1 | — | 1 | 2 | 6 | 5 | 1 | 1 | 1 | 4 | — | |
Temp °C | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 29 | 28 | 27 | 27 | 27 | 26 | 26 | 28 | 29 | 30 | 28 | 27 | 26 | 26 | 26 | 28 | 29 |
33 | 33 | 34 | 32 | 32 | 32 | 33 | 32 | 32 | 32 | 32 | 32 | 31 | 30 | 33 | 33 | 33 | 32 | 32 | 30 | 31 | 31 | 33 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SSW 18 | SW 17 | SW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 15 |
 kJ | 886 | 874 | 801 | 683 | 642 | 555 | 1249 | 1399 | 1235 | 1221 | 1107 | 907 | 1230 | 843 | 832 | 832 | 729 | 657 | 649 | 863 | 576 | 482 | 482 | 489 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 19 | SW 19 | SSW 18 | SW 18 | SW 18 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 20 | SSW 10 | SSW 10 | SW 19 | SW 19 |
| kJ | 863 | 1088 | 1066 | 903 | 926 | 905 | 405 | 411 | 323 | 313 | 308 | 254 | 250 | 173 | 164 | 128 | 128 | 126 | 121 | 188 | 118 | 116 | 384 | 380 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 7 | — | — | — | — | — | — | — | — | — | SW 22 | SW 22 | SSW 22 | SW 21 | SW 21 | SW 20 | W 16 | SW 20 | SW 19 | SSW 5 | SSW 10 |
| kJ | — | — | — | 18 | — | — | — | — | — | — | — | — | — | 19 | 18 | 45 | 71 | 69 | 101 | 5 | 188 | 303 | 16 | 106 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 98 | 0 | 0 | 0 | 0 | 0 | 0 | 156 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 156 | 164 | 18 | 0 | 0 | 0 | 0 | 0 | 98 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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