Surf Forecasts:
Cabo Blanco surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 7AM (local time) - 3ft (0.9m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 7AM (local time) - 3ft (0.9m), 16s period, SSW swell with 447 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 4AM (local time) - 2.5ft (0.8m), 14s period with SW swell.
Best Forecast Surf Conditions for Cabo Blanco this week:
The surf forecast for Cabo Blanco over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 4AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.6m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cabo Blanco in the next 16 days are 0.9m 16s and forecast to arrive on Wednesday (Sep 16) at 7AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 12th Sep) | 2.5ft (0.8m) 14s |
| Best Surf | 7AM (Wed 16th Sep) | 3ft (0.9m) 16s |
| Most Powerful | 7AM (Wed 16th Sep) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Cabo Blanco over the next 16 days.
The Lowdown
Alright folks, let’s talk Cabo Blanco. This break faces southwest and picks up swell pretty regularly, so you’ll have windows to surf over the next couple of weeks, but not every window is worth the paddle.
The water is sitting at 86°F, which is much warmer than usual for this time of year – feels like a hot tub.
Friday the 11th afternoon: glassy, no wind, 3ft SW groundswell with a 15-second period. Moderate energy at 450. Those are long, lined-up waves – you’ll wait between sets but they’ll be clean. Saturday morning the 12th is glassy again, 3ft SW at 14 seconds. Nice shape. Afternoon blows onshore, so morning is where it’s at.
Sunday the 13th morning: glassy with a light WNW breeze, 2ft SW at 13 seconds – still clean but getting smaller. Afternoon turns onshore and junky.
Monday the 14th morning: glassy again, 3ft SSW at 8 seconds. Shorter period, more frequent, but weaker energy (273). Still clean. Afternoon gets cross-on and messy.
Tuesday the 15th morning: dead calm, glassy, 2ft SW with a long 18-second period, energy climbing to 376. That’s a groundswell pulse – long, powerful lines. Better on a point than a beach.
Here’s the real standout: Wednesday the 16th morning. Glassy calm, 3ft SSW at 16 seconds and strong energy at 529. That’s the full package – size, power, and perfect wind. Get out there before the afternoon cross-on chops it.
Thursday the 17th morning stays glassy with 3ft SW at 14 seconds – another good one.
Friday the 18th starts glassy, 2ft SW at 13 seconds. Afternoon onshore and poor.
Saturday the 19th morning: glassy, tiny 1ft SW but a very long 19-second period – super clean but small. Sunday the 20th morning picks back up: glassy, 2ft SW, 19 seconds, energy 430. Great for the size.
Monday the 21st is wrecked by moderate cross-onshore wind – forget it. Tuesday the 22nd morning is glassy again, 2ft SW at 16 seconds and strong energy of 513 – another top morning. The rest of that week fades to glassy starts but shorter period and lower energy, ending up ordinary by the 26th.
So the takeaway: Wednesday the 16th morning is your best call – clean, powerful, long-period swell. Tuesday the 22nd morning is right up there too.
Rusty.
Short Range ForecastHeavy rain (total 49mm), heaviest during Sun night. Warm (max 29°C on Sat morning, min 23°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Tue afternoon. Warm (max 29°C on Tue morning, min 26°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 9 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 16 | SSW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 365 | 248 | 248 | 248 | 144 | 140 | 101 | 183 | 109 | 150 | 258 | 249 | 312 | 376 | 447 | 353 | 305 | 301 | 293 | 183 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | on | glassy | glassy | on | cross-off | glassy | cross-on | glassy | glassy | on | glassy | glassy | cross-on | cross-off | glassy | on | glassy |
High Tide | 4:11AM3.19m | 4:31PM3.05m | 4:50AM3.21m | 5:12PM3.01m | 5:28AM3.15m | 5:51PM2.92m | 6:05AM3.03m | 6:29PM2.77m | 6:42AM2.86m | 7:08PM2.59m | 7:21AM2.67m | 7:50PM2.40m | ||||||||
Low Tide | 9:56PM0.14m | 10:23AM0.13m | 10:37PM0.14m | 11:04AM0.11m | 11:16PM0.20m | 11:43AM0.16m | 11:54PM0.31m | 12:21PM0.27m | 00:31AM0.46m | 1:00PM0.42m | 1:10AM0.63m | 1:41PM0.59m | 1:51AM0.81m | |||||||
 |  |  | |  | | | | | |  | | | | | | | | | | |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — |
 | 6:35 | — | — | 6:34 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — |
mm | 4 | 1 | — | 4 | 3 | 3 | 12 | 22 | — | — | — | 1 | 4 | 5 | 1 | 2 | 7 | 1 | 2 | 1 |
Temp °C | 28 | 27 | 29 | 29 | 27 | 29 | 28 | 25 | 29 | 28 | 27 | 29 | 29 | 27 | 28 | 28 | 27 | 29 | 28 | 27 |
Feels °C | 34 | 32 | 33 | 33 | 32 | 33 | 31 | 29 | 33 | 32 | 32 | 33 | 32 | 31 | 32 | 32 | 32 | 33 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 9 | SW 16 | SSW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SW 13 |
| kJ | 365 | 248 | 248 | 248 | 82 | 80 | 101 | 99 | 109 | 127 | 111 | 94 | 137 | 376 | 447 | 353 | 305 | 301 | 293 | 183 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 9 | S 9 | SSW 8 | S 10 | S 9 | S 9 | SSW 9 |
| kJ | 48 | 41 | 50 | 73 | 144 | 140 | 84 | 82 | 73 | 150 | 258 | 249 | 312 | 111 | 76 | 72 | 92 | 79 | 74 | 79 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | S 10 | S 10 | SW 18 | SSW 21 | SSW 21 | SSW 16 | SW 19 | SW 19 | SW 12 | SW 12 | SW 11 | SW 14 | SSW 11 | WSW 6 | W 12 | SSW 23 | SW 22 | SW 22 | SW 21 |
| kJ | 37 | 8 | 7 | 79 | 45 | 44 | 50 | 183 | 91 | 37 | 35 | 33 | 30 | 11 | 6 | 12 | 54 | 78 | 73 | 115 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 143 | 0 | 0 | 16 | 0 | 0 | 111 | 0 | 0 | 143 | 0 | 0 | 149 | 0 | 0 | 149 | 0 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||
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Information about the Cabo Blanco Surf forecast
The above surf forecast table for Cabo Blanco provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cabo Blanco can be found by selecting the local surf guide option on the grey menu. Our Cabo Blanco 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 (Cabo Blanco) 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 Cabo Blanco 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 Cabo Blanco, camping, hotels and holiday cottages in Golfo Dulce, consider staying in Golfito which is 31 km (19 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 32 km (20 miles) away, La Concepcion, Pedregal and David.
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