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Backwash Surf Forecast
/ Golfo Dulce (13 surf breaks) /
Backwash surfForecast / Golfo Dulce / Costa Rica
12 Day Weather and Surf, issued 5 pm Friday 16 May 2025 CST
Best Forecast Surf Conditions for Backwash this week:
The surf forecast for Backwash over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 17) at 12AM. The primary swell is predicted to be 6ft and 15s period with a secondary swell of 1ft and 6s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Backwash in the next 12 days are 5ft 18s and forecast to arrive on Thursday (May 22) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2ft 5s period and expected on Sunday (May 18) at 9PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 17th May) | 6ft (1.8m) 15s |
| Best Surf | 3AM (Sat 17th May) | 6ft (1.8m) 15s |
| Most Powerful | 12PM (Thu 22nd May) | 5ft (1.6m) 18s |
Table - best surf conditions forecast for Backwash over the next 12 days.
Fri 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wed 28 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 22 | 13 | 14 | 18 | 18 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 20 | 18 | 17 | 16 | 16 | 15 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 1923 | 1471 | 1364 | 1364 | 1136 | 970 | 1106 | 1106 | 767 | 756 | 714 | 789 | 504 | 514 | 317 | 447 | 651 | 559 | 817 | 1276 | 674 | 1067 | 1354 | 1289 | 1555 | 1955 | 1517 | 1225 | 1446 | 1874 | 2295 | 2033 | 1684 | 1431 | 1024 | 956 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | glass | cross- on | glass | glass | cross- off | off | glass | cross | glass | glass | cross | glass | glass | cross | glass | glass | cross | glass | glass | cross | glass | glass | cross- off | glass | glass | cross | off | glass | cross- on | glass | on | cross- on | off | glass |
High Tide / height (ft) | 5:02PM 8.76 | 5:38AM 8.2 | 5:41PM 8.5 | 6:20AM 8.04 | 6:24PM 8.2 | 7:07AM 7.97 | 7:15PM 7.94 | 8:01AM 8.04 | 8:14PM 7.74 | 8:59AM 8.27 | 9:22PM 7.74 | 10:01AM 8.66 | 10:31PM 7.94 | 11:01AM 9.19 | 11:36PM 8.33 | 11:58AM 9.71 | 12:36AM 8.83 | 12:53PM 10.17 | 1:31AM 9.29 | 1:46PM 10.53 | 2:24AM 9.68 | 2:37PM 10.7 | 3:15AM 9.88 | |||||||||||||
Low Tide / height (ft) | 11:23PM 1.54 | 11:35AM 2.59 | 12:03AM 1.8 | 12:19PM 2.85 | 12:46AM 2.1 | 1:10PM 3.02 | 1:36AM 2.3 | 2:11PM 3.05 | 2:32AM 2.43 | 3:19PM 2.85 | 3:34AM 2.43 | 4:26PM 2.4 | 4:38AM 2.23 | 5:28PM 1.77 | 5:38AM 1.87 | 6:26PM 1.08 | 6:36AM 1.48 | 7:19PM 0.46 | 7:31AM 1.08 | 8:10PM 0 | 8:24AM 0.82 | 9:00PM -0.23 | 9:16AM 0.72 | |||||||||||||
Fri 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wed 28 | ||||||||||||||||||||||||
| Sunrise | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 |
| Sunset | 5:44 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:45 | - | - | 5:46 | - | - |
 |  |  | | | | | | | | |  | | | | | | | | | | | | | | | | | |  | | | | | | | |
Rain (in) | 0.2 | 0.0 | - | 0.2 | 0.2 | 0.1 | 0.2 | 0.0 | 0.1 | 0.2 | 0.2 | - | - | 0.2 | 0.1 | - | 0.2 | 0.1 | 0.1 | 0.1 | - | 0.1 | 0.3 | 0.2 | 0.3 | 0.3 | 0.1 | 0.2 | 0.3 | 0.0 | 0.1 | 0.1 | 0.0 | 0.1 | 0.2 | 0.0 |
| Temp. °F | 82 | 77 | 82 | 82 | 79 | 81 | 82 | 79 | 82 | 82 | 77 | 82 | 82 | 81 | 82 | 84 | 81 | 82 | 84 | 79 | 82 | 84 | 79 | 82 | 82 | 79 | 82 | 82 | 79 | 82 | 81 | 79 | 82 | 82 | 81 | 82 |
| Feels °F (?) | 90 | 84 | 90 | 90 | 88 | 90 | 88 | 86 | 90 | 90 | 82 | 88 | 88 | 90 | 88 | 90 | 90 | 88 | 90 | 88 | 88 | 90 | 88 | 90 | 88 | 86 | 88 | 88 | 86 | 90 | 88 | 88 | 88 | 90 | 90 | 90 |
Short Range Forecast: Heavy rain (total 1.0in), heaviest during Fri afternoon. Warm (max 82°F on Fri afternoon, min 77°F on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 1.0in), heaviest during Mon night. Warm (max 84°F on Wed afternoon, min 77°F on Mon night). Wind will be generally light. | Days 6-9 Weather Summary Heavy rain (total 1.4in), heaviest during Sat afternoon. Warm (max 84°F on Thu afternoon, min 77°F on Sat night). Wind will be generally light. | Long Range Forecast: Heavy rain (total 1.1in), heaviest during Sun night. Warm (max 82°F on Sun afternoon, min 77°F on Sun night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 12 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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