Surf Forecasts:
Cabo Blanco surf forecast from 13 Aug 2026:
- Best quality surf: Friday 14 Aug, 7AM (local time) - 2.5ft (0.8m), 19s period, SW swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 7PM (local time) - 3.5ft (1.1m), 18s period, SW swell with 686 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 7AM (local time) - 2ft (0.6m), 14s period with S 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 Thursday (Aug 13) at 7AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.7m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cabo Blanco in the next 16 days are 1.1m 18s and forecast to arrive on Friday (Aug 14) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 13th Aug) | 2ft (0.6m) 14s |
| Best Surf | 7AM (Fri 14th Aug) | 2.5ft (0.8m) 19s |
| Most Powerful | 7PM (Fri 14th Aug) | 3.5ft (1.1m) 18s |
Table - best surf conditions forecast for Cabo Blanco over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at the next couple of weeks for Cabo Blanco. We’ve got a bit of a mixed bag coming up, so let’s break it down.
The main story is that we have a solid run of south-west groundswell pushing through, but the wind and the storms are going to be the real players here. Afternoons are looking pretty messy for the most part, with thunderstorms and onshore breezes likely to chop things up. That means you’ll want to be getting your sessions in early. The mornings are where the magic is happening.
To kick things off, the first decent window is on Friday morning, the 14th. We’ve got a clean 3ft SW swell with a long 18-second period rolling in. The wind is nearly dead and glassy. It’s not huge, but the energy is there—moderate to strong (668). This is a proper little groundswell window, and Cabo Blanco is the exposed spot for it. This is looking like one of the main mornings to be out there.
The 14th is followed by a bit of a lull on Saturday. The swell jumps up a touch to 4ft, also from the SW, but it gets a bit crossed-up from the WNW wind in the morning, so it’s not as clean. The afternoon is a write-off with the storm risk and onshore wind.
Now, Sunday the 16th is a classic. We're back to clean conditions in the morning with a 3ft SW swell at 15 seconds. It’s glassy, calm, and the wave energy is moderate (568). This is another one of those standout mornings. It’s not the biggest, but it’s going to be perfect, clean surf. If the tide is right, it will be worth the paddle out.
After Sunday, things get a bit more inconsistent and smaller. There are a few good morning windows here and there, like Monday the 17th afternoon which is glassy, but it’s not until Friday the 21st that we get a bit more size. That morning sees a 4ft SSW swell, but the period drops off to 11 seconds. The wind is zero, completely glassy. So even though the period is shorter, it’s going to be clean and a little more powerful.
The early hours of Saturday the 22nd also look promising, with 4ft S swell, glassy conditions, and a bit of energy in the water (342). It’s not a stand-out, but it’s a solid surfable morning before the wind gets on it.
Looking further out, into the second week, the swells get smaller and more inconsistent. Around the 23rd and 24th, we see some long-period SW swells (18-19 seconds) coming in, but they're pretty small—1ft to 2ft. It’s all about the morning glass again. These are the kinds of waves for the longboard when the tide is right, but you won’t be getting barreled.
The water temp here at the start is about average for the time of year, nothing to write home about.
So, to sum it up: your best bets are the Friday the 14th and Sunday the 16th morning sessions. Clean, glassy, with some decent SW groundswell. Keep an eye on those thunderstorms in the afternoon—they’ll mess up the surf but they might make for a good show from the beach.
Rusty.
Short Range ForecastHeavy rain (total 33mm), heaviest during Sat afternoon. Warm (max 29°C on Thu morning, min 26°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 74mm), heaviest during Sat night. Warm (max 28°C on Tue morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
AM | 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) | SSW 12 | SW 14 | SW 20 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 15 | SW 14 | SSW 10 |
Wave Graph | |||||||||||||||||||||
160 | 158 | 186 | 540 | 516 | 582 | 567 | 560 | 539 | 355 | 355 | 355 | 276 | 276 | 268 | 238 | 258 | 362 | 217 | 214 | 160 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | cross-on | cross | cross | cross-on | cross | glassy | on | glassy | cross | glassy | cross-off | cross-off | cross-on | glassy | glassy | on | cross |
High Tide | 4:04PM3.10m | 4:35AM3.18m | 4:51PM3.12m | 5:19AM3.24m | 5:36PM3.07m | 6:00AM3.20m | 6:19PM2.96m | 6:41AM3.09m | 7:01PM2.80m | 7:21AM2.92m | 7:44PM2.60m | 8:03AM2.73m | 8:30PM2.40m | ||||||||
Low Tide | 9:56AM0.25m | 10:18PM0.02m | 10:44AM0.17m | 11:02PM0.01m | 11:29AM0.15m | 11:44PM0.08m | 12:13PM0.20m | 00:26AM0.21m | 12:56PM0.30m | 1:06AM0.39m | 1:39PM0.45m | 1:48AM0.59m | 2:23PM0.61m | 2:32AM0.78m | |||||||
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:49 | — | — | 6:49 | — | — | 6:47 | — | — | 6:47 | — | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | |
mm | 1 | 2 | — | — | 3 | 6 | — | 16 | 43 | — | 12 | 9 | 4 | 3 | 1 | — | 2 | 4 | — | — | 2 |
Temp °C | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 25 | 27 | 27 | 24 | 26 | 26 | 25 | 28 | 28 | 25 | 28 | 28 | 27 |
Feels °C | 32 | 33 | 32 | 33 | 32 | 31 | 32 | 30 | 29 | 30 | 31 | 29 | 29 | 30 | 28 | 31 | 31 | 29 | 31 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 7 | S 7 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 11 | SW 15 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 9 | SSW 9 | SSW 10 |
48 | 51 | 48 | 540 | 516 | 582 | 567 | 560 | 539 | 355 | 222 | 355 | 82 | 79 | 64 | 82 | 86 | 115 | 151 | 140 | 154 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SW 14 | S 12 | S 11 | SSW 12 | S 12 | SSW 12 | W 13 | SSW 6 | SSW 11 | SW 15 | S 11 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 |
160 | 158 | 96 | 94 | 252 | 139 | 145 | 3 | 55 | 210 | 355 | 36 | 276 | 276 | 268 | 238 | 258 | 362 | 217 | 214 | 160 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | S 12 | SW 20 | S 7 | SW 15 | SSW 10 | — | — | S 11 | W 12 | S 11 | W 13 | S 10 | S 10 | S 10 | S 10 | S 12 | W 8 | W 12 | — | SW 6 |
106 | 77 | 186 | 34 | 33 | 9 | — | — | 59 | 3 | 57 | 3 | 31 | 17 | 8 | 2 | 3 | 1 | 3 | — | 10 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 12 | — | — | — | SSW 6 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | 199 | — | — | — | 66 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 16 | 0 | 0 | 16 | 15 | 7 | 143 | 15 | 0 | 16 | 0 | 8 | 0 | 0 | 0 | 7 | 0 | 0 | 143 | 7 |
Best forecast wave conditions in Golfo Dulce | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











