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Backwash Surf Forecast
/ Golfo Dulce (13 surf breaks) /
Surf Forecasts:
Backwash surfForecast / Golfo Dulce / Costa Rica
16 Day Weather and Surf, issued 5 pm Wednesday 29 Apr 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
30.2° C
(Which is 1.0°C warmer than normal for this time of year)Best Forecast Surf Conditions for Backwash this week:
The surf forecast for Backwash over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Apr 30) at 12AM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.2m and 16s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Backwash in the next 16 days are 1.2m 15s and forecast to arrive on Thursday (May 07) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Sunday (May 03) at 3AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 30th Apr) | 3.5ft (1.0m) 13s |
| Best Surf | 12AM (Thu 30th Apr) | 3.5ft (1.0m) 13s |
| Most Powerful | 12AM (Thu 7th May) | 4ft (1.2m) 15s |
Table - best surf conditions forecast for Backwash over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 34mm), heaviest during Thu night. Warm (max 29°C on Wed afternoon, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 83mm), heaviest during Sun night. Warm (max 29°C on Mon afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wed 29 | Thursday 30 | Friday 1 | Saturday 2 | Sunday 3 | Monday 4 | Tuesday 5 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SSW 13 | SSW 13 | S 13 | SSW 12 | SSW 12 | S 12 | S 11 | S 12 | S 12 | SSW 11 | S 11 | S 11 | S 11 | S 10 | S 15 | S 14 | SSW 16 | SW 15 | SSW 15 | SW 14 | SW 16 | |
451 | 367 | 345 | 271 | 244 | 196 | 160 | 171 | 134 | 319 | 112 | 146 | 110 | 94 | 107 | 100 | 173 | 113 | 169 | 167 | 248 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | glassy | glassy | cross-off | off | glassy | cross-off | off | glassy | cross | cross-off | off | cross | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | |
High Tide | 1:49AM2.64m | 1:59PM2.87m | 2:28AM2.70m | 2:36PM2.90m | 3:05AM2.73m | 3:11PM2.90m | 3:41AM2.73m | 3:47PM2.87m | 4:17AM2.69m | 4:23PM2.80m | 4:54AM2.62m | 4:59PM2.70m | 5:33AM2.52m | ||||||||
Low Tide | 7:39PM0.44m | 7:48AM0.57m | 8:18PM0.35m | 8:27AM0.53m | 8:54PM0.29m | 9:03AM0.51m | 9:29PM0.27m | 9:39AM0.52m | 10:05PM0.29m | 10:16AM0.56m | 10:41PM0.35m | 10:52AM0.64m | 11:19PM0.44m | 11:31AM0.75m | |||||||
 |  | |  | |  | | |  | | | | | | | | | | |  | | |
 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 |
 | 5:42 | — | — | 5:42 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | 5:43 |
— | 4 | — | 2 | 10 | 1 | 9 | 7 | 1 | 11 | 30 | — | 2 | 31 | 1 | 5 | 2 | 1 | 4 | 1 | 1 | |
Temp °C | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 26 | 28 | 28 | 25 | 28 | 27 | 25 | 28 | 29 | 27 | 29 | 28 | 26 | 29 |
32 | 31 | 32 | 31 | 31 | 32 | 32 | 29 | 33 | 31 | 29 | 33 | 30 | 28 | 32 | 33 | 32 | 33 | 31 | 30 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | S 13 | SSW 12 | SSW 12 | S 12 | S 11 | S 12 | S 12 | SW 16 | S 6 | S 11 | S 11 | S 10 | S 10 | S 10 | SSW 16 | SW 15 | SSW 15 | SW 14 | SW 16 |
 kJ | 451 | 367 | 345 | 271 | 244 | 196 | 160 | 171 | 134 | 66 | 33 | 146 | 110 | 94 | 90 | 67 | 173 | 113 | 169 | 167 | 248 |
Swell 2 Height (m) Direction Period (s) | WNW 16 | S 16 | WNW 15 | S 15 | WNW 16 | SSW 12 | SSW 12 | WSW 3 | SSW 5 | W 13 | S 11 | SW 15 | SSW 15 | SW 14 | S 15 | S 14 | S 13 | S 12 | S 9 | S 15 | S 11 |
| kJ | 25 | 20 | 21 | 17 | 24 | 57 | 14 | 2 | 19 | 14 | 112 | 106 | 84 | 51 | 107 | 100 | 87 | 75 | 36 | 112 | 85 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 14 | W 17 | WNW 15 | S 15 | WNW 14 | W 13 | WNW 14 | SW 16 | W 14 | WSW 5 | WSW 5 | S 18 | S 16 | SW 13 | SW 13 | SW 13 | S 8 | S 12 | S 9 | SSW 13 |
| kJ | 3 | 16 | 6 | 21 | 17 | 19 | 14 | 18 | 41 | 4 | 18 | 7 | 54 | 81 | 88 | 87 | 87 | 32 | 46 | 37 | 60 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 8 | — | WSW 3 | — | — | SSW 11 | — | — | WSW 4 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 2 | — | 2 | — | — | 319 | — | — | 4 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 98 | 0 | 0 | 160 | 0 | 0 | 98 | 0 | 0 | 98 | 0 | 0 |
Best forecast wave conditions in Golfo Dulce | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Backwash surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Backwash Surf forecast
The above surf forecast table for Backwash provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Backwash can be found by selecting the local surf guide option on the grey menu. Our Backwash surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Backwash) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Backwash may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Golfo Dulce? If you are looking for accommodation near Backwash, camping, hotels and holiday cottages in Golfo Dulce, consider staying in Golfito which is 28 km (17 miles) away. Other places in and around Golfo Dulce where you can find information about places to rent, and car hire include Puerto Armuelles which is 48 km (30 miles) away, La Concepcion, Pedregal and David.
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