Surf Forecasts:
Cabo Blanco surf forecast from 10 Aug 2026:
- Best quality surf: Friday 14 Aug, 7AM (local time) - 2.5ft (0.8m), 19s period, SW swell with cross-offshore 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★+): Tuesday 11 Aug, 4AM (local time) - 2.5ft (0.8m), 15s period with SSW 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 Tuesday (Aug 11) at 4AM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore 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+) | 4AM (Tue 11th Aug) | 2.5ft (0.8m) 15s |
| 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
G’day, Rusty here, with your local surf outlook for Cabo Blanco. Let’s get into it.
We’ve got a solid run of clean, glassy mornings coming up, especially over the next week. The water is sitting at 87°F, which is a touch warmer than normal for this time of year – a nice little bonus.
The standout sessions are Monday the 10th and Friday the 14th of August, with Friday being the pick of the bunch. Friday morning (14th August) you’ll find clean 3 ft southwest groundswell with a long 18-second period, combined energy of 678 – that’s moderate wave energy. The wind is glass, so it’ll be picture-perfect. That long period means the waves will have serious push and shape, but at a beach break it can run a bit straight, so keep your eyes peeled for the better peaks.
Monday morning (10th August) is also a beauty: 2 ft of southwest groundswell at 13 seconds, glassy conditions, and combined energy of 317. It’s a smaller, cleaner day for getting your groove on.
The rest of the mornings through the week stay clean and rideable, with swell bumping up to 4 ft by Saturday the 15th. That Saturday morning session has 4 ft southwest groundswell at 16 seconds and combined energy of 712 – solid moderate energy. But the afternoon sees a risk of thunderstorms and cross-onshore wind, so make the most of the early.
After the first week, the pattern settles into smaller, glassy mornings but with shorter period swells (10 to 11 seconds). The best of the second week looks like Wednesday the 19th of August morning, with 4 ft south swell, 10-second period, and glassy conditions – combined energy of 598. Thursday morning the 20th and Friday morning the 21st are also worth a look, with clean 4 ft to 4 ft south swell.
Crowds are possible here – it’s a spot that can get some company, so factor that in.
All in all, we’ve got a solid two-week window with plenty of clean, glassy mornings. The best on offer is Friday the 14th of August morning, with Monday the 10th and Saturday the 15th not far behind.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Wed afternoon. Warm (max 30°C on Mon morning, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 39mm), heaviest during Sat afternoon. Warm (max 29°C on Thu morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 13 | SW 12 | SSW 15 | SW 18 | SW 18 | SW 17 | SW 16 | S 14 | SW 15 | SSW 12 | SW 14 | SW 20 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 147 | 157 | 150 | 159 | 319 | 145 | 208 | 153 | 174 | 162 | 158 | 186 | 457 | 595 | 582 | 567 | 486 | 539 | 355 | 355 | 355 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | glassy | cross-on | cross | glassy | on | glassy | glassy | on | cross-off | glassy | on | cross | glassy | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 1:14PM2.76m | 2:01AM2.65m | 2:18PM2.89m | 2:58AM2.86m | 3:13PM3.01m | 3:49AM3.05m | 4:04PM3.10m | 4:35AM3.18m | 4:51PM3.12m | 5:19AM3.24m | 5:36PM3.07m | 6:00AM3.20m | 6:19PM2.96m | ||||||||
Low Tide | 7:42PM0.39m | 8:04AM0.55m | 8:40PM0.23m | 9:03AM0.39m | 9:31PM0.09m | 9:56AM0.25m | 10:18PM0.02m | 10:44AM0.17m | 11:02PM0.01m | 11:29AM0.15m | 11:44PM0.08m | 12:13PM0.20m | 00:26AM0.21m | ||||||||
 |  |  | | |  |  | | | | | | | | | | |  | | | | |
 | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:47 | — | — | 6:47 | — |
mm | — | 1 | — | — | 4 | 3 | 1 | 13 | 2 | 1 | 3 | 1 | — | 5 | 5 | 4 | 12 | 8 | 3 | 5 | 12 |
Temp °C | 30 | 30 | 28 | 30 | 30 | 28 | 29 | 29 | 26 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 25 | 28 | 27 | 26 |
Feels °C | 34 | 33 | 33 | 34 | 33 | 32 | 33 | 32 | 31 | 33 | 33 | 32 | 32 | 32 | 31 | 33 | 31 | 29 | 32 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SW 12 | SSW 12 | S 8 | SW 18 | SW 13 | SW 16 | SSW 8 | S 7 | SSW 12 | S 7 | S 7 | SSW 11 | SW 18 | SW 17 | SW 16 | SW 16 | SSW 7 | SSW 7 | SW 15 | SSW 7 |
| kJ | 147 | 157 | 99 | 50 | 319 | 142 | 208 | 77 | 83 | 162 | 49 | 45 | 217 | 595 | 582 | 567 | 486 | 121 | 113 | 355 | 120 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | SSW 15 | SSW 14 | SSW 14 | S 9 | S 8 | S 14 | SW 15 | S 7 | SW 14 | S 12 | SW 18 | SSW 12 | S 12 | SSW 12 | SSW 12 | SW 16 | SW 15 | S 11 | SW 15 |
| kJ | 41 | 40 | 150 | 131 | 183 | 57 | 52 | 153 | 174 | 48 | 158 | 96 | 457 | 189 | 180 | 145 | 186 | 539 | 355 | 37 | 355 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 15 | S 9 | SW 18 | S 9 | SW 17 | SSW 13 | SW 16 | S 14 | SW 15 | S 12 | SW 20 | W 13 | SW 14 | SSW 10 | — | SW 9 | S 11 | S 11 | W 12 | S 11 |
| kJ | 129 | 88 | 55 | 159 | 57 | 145 | 114 | 125 | 103 | 106 | 77 | 186 | 4 | 74 | 9 | — | 3 | 60 | 37 | 3 | 36 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 12 | — | — | SSW 7 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 298 | — | — | 127 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 16 | 7 | 0 | 16 | 15 | 0 | 149 | 0 | 0 | 143 | 0 | 0 | 16 | 7 | 0 | 16 | 15 | 15 | 16 | 7 |
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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