
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: Saturday 15 Aug, 4AM (local time) - 3.5ft (1.1m), 16s period, SW swell with 603 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 1AM (local time) - 2.5ft (0.8m), 13s 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 Monday (Aug 10) at 1AM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.4m and 9s. 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 16s and forecast to arrive on Saturday (Aug 15) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 10th Aug) | 2.5ft (0.8m) 13s |
| Best Surf | 7AM (Fri 14th Aug) | 2.5ft (0.8m) 19s |
| Most Powerful | 4AM (Sat 15th Aug) | 3.5ft (1.1m) 16s |
Table - best surf conditions forecast for Cabo Blanco over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve got the goods on your local surf outlook. We’re in for a decent run at Cabo Blanco—a spot that’s fairly consistent and exposed to the southwest swell. The water’s sitting at 86°, which is a touch warmer than normal for this time of year, so it’s a bit of a treat.
The overall pattern is a string of clean, glassy mornings with small but rideable swell, building into a couple of standout sessions that’ll get your heart racing. There’s no big gap of flatness here; the surf starts right from Sunday, August 9th, with a 3 ft SSW swell (408 moderate energy). It’s glassy in the morning with that southeast air barely a whisper, so expect clean lines. That’s the start of a stretch of mornings that are all about peace and quiet—crowds are just a sometimes thing, so you might get a wave to yourself.
Monday morning, August 10th, is dead calm with a 2 ft SSW swell (317 moderate energy). It’s tiny but clean as a whistle. Tuesday morning, August 11th, is glass again with a 2 ft SW swell—period’s a whopping 18 seconds (340 moderate energy). That’s a long-period groundswell, which means better-shaped waves but longer lulls; it’ll peel nicely here at the point.
Now, for the real standouts. Friday morning, August 14th is the pick of the first week: a 3 ft SW swell with that 18-second period (678 strong energy), glassy as glass. That’s “expect very good surf conditions”—the swell’s still small, but the energy is pumping, and the wind’s dead off. It’s a proper session for those who like their waves clean and lined up. Saturday morning, August 15th is close behind: 4 ft SW swell (753 strong energy), glassy again, with the same 16-second period. That’s a touch more size, and it’s still pristine.
After that, the mornings stay clean through to Thursday, August 20th, with a 4 ft S swell (396 moderate energy) under calm skies, but the afternoons get messy with onshore winds and storms. Tuesday morning, August 18th brings a 6 ft SSW swell (573 strong energy) but with a short 8-second period—that’s a windswell feel, less refined, but still surfable on the glass. For experts only if it gets bigger, but here it’s fine for most.
The second week gets quieter. Friday morning, August 21st has a 3 ft S swell (321 moderate energy), glassy, good fun. Saturday morning, August 22nd drops to 2 ft SW swell with a 21-second period (393 moderate energy)—that’s a very long period groundswell, but tiny. It’s clean with a cross-offshore breeze, so those long, walling waves will be a treat for loggers. Sunday morning, August 23rd has 2 ft SW swell (485 moderate energy), glassy again.
If you want the best of the lot, lock in Friday morning, August 14th and Saturday morning, August 15th. Clean, glassy, decent energy, and the crowds are only sometimes around. Don’t sleep on them.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Tue afternoon. Warm (max 30°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 32mm), heaviest during Thu afternoon. Warm (max 29°C on Wed morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 13 | SW 12 | SSW 15 | SW 18 | SW 18 | SW 17 | SSW 16 | S 14 | SW 15 | SSW 12 | SW 14 | SW 20 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
362 | 250 | 222 | 147 | 157 | 150 | 159 | 319 | 145 | 173 | 153 | 174 | 162 | 158 | 186 | 457 | 516 | 582 | 567 | 486 | 539 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | on | cross | glassy | cross-on | cross | glassy | on | glassy | glassy | on | cross | glassy | cross-on | cross-off | glassy | on | cross-on |
High Tide | 12:03PM2.66m | 00:54AM2.45m | 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 | ||||||||
Low Tide | 6:37PM0.54m | 6:57AM0.70m | 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 | ||||||||
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:47 | — | |
mm | — | — | 1 | — | — | — | — | 5 | 2 | 2 | 5 | 2 | 1 | 5 | 2 | 2 | 5 | 8 | 4 | 15 | 18 |
Temp °C | 29 | 29 | 27 | 30 | 30 | 28 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 27 | 28 | 27 | 25 |
Feels °C | 32 | 32 | 31 | 34 | 33 | 32 | 32 | 32 | 31 | 32 | 33 | 32 | 33 | 32 | 32 | 32 | 32 | 31 | 33 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 12 | SSW 12 | S 8 | SW 18 | SW 13 | S 8 | SSW 8 | SSW 7 | S 8 | S 7 | SSW 7 | SSW 11 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 |
362 | 250 | 222 | 147 | 157 | 99 | 50 | 319 | 142 | 44 | 77 | 54 | 72 | 54 | 37 | 217 | 516 | 582 | 567 | 486 | 539 | |
Swell 2 Height (m) Direction Period (s) | S 8 | SSW 8 | SSW 9 | S 9 | S 9 | SSW 15 | SSW 14 | SSW 14 | S 9 | SSW 16 | S 14 | SW 15 | SSW 12 | SW 14 | S 12 | SW 18 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 6 |
34 | 21 | 29 | 41 | 40 | 150 | 131 | 183 | 56 | 173 | 153 | 174 | 162 | 158 | 96 | 457 | 232 | 189 | 186 | 186 | 46 | |
Swell 3 Height (m) Direction Period (s) | WSW 11 | SSW 18 | SW 16 | 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 | SW 10 | — | SW 8 | S 11 |
12 | 31 | 69 | 129 | 88 | 38 | 159 | 57 | 145 | 114 | 125 | 103 | 106 | 77 | 186 | 4 | 74 | 4 | — | 3 | 85 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 244 | 0 | 0 | 16 | 15 | 0 | 15 | 15 | 0 | 16 | 0 | 0 | 16 | 7 | 0 | 15 | 0 | 0 | 16 | 15 |
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.











