Surf Forecasts:
Cabo Blanco surf forecast from 14 Aug 2026:
- Best quality surf: Friday 14 Aug, 10AM (local time) - 3ft (0.9m), 18s 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★+): Friday 14 Aug, 10AM (local time) - 3ft (0.9m), 18s 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 Friday (Aug 14) at 10AM. The primary swell is predicted to be 0.9m and 18s period with a secondary swell of 0.9m and 11s. 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+) | 10AM (Fri 14th Aug) | 3ft (0.9m) 18s |
| Best Surf | 10AM (Fri 14th Aug) | 3ft (0.9m) 18s |
| 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, grab your coffee and let’s talk about Cabo Blanco. This forecast is a bit of a mixed bag, but there are some real gems if you time it right.
The big picture here is a nice, long period, consistent SW groundswell sticking around for a while, but the wind and weather are going to be the main players picking the good sessions from the average ones. The first few days have some clean windows, but also some afternoon stormy bits that mess things up. The standout is without a doubt Friday morning, August 14th. We’ve got a clean 3ft SW swell with an incredible 18-second period – that’s proper groundswell, plenty of energy (761 combined energy) and it’s glassy. The water temp is about average for this time of year, which is fine. That Friday morning session is the one to get on.
The swell stays in the 3ft to 4ft range through the weekend, but the winds get tricky. Saturday morning (August 15th) has a 4ft SW swell (712 energy) but a light cross-onshore breeze messes with the surface a bit. Sunday morning (August 16th) is another glassy morning with a 3ft SW swell at 15 seconds – that’s worth getting up for too. The afternoons are mostly a write-off with storms.
Then we get a nice little run of clean mornings. Monday the 18th, winds go glassy from the east, swell is 3ft from the SW (395 energy). Tuesday the 19th morning is dead calm with a clean 3ft SW swell (392 energy). That's a sneaky good session for a longboard or a funboard. Crowds are possible at Cabo Blanco, so get there early.
The swell drops off a bit mid-week, but Thursday the 21st morning brings a glassy 4ft SSW swell back (362 energy) – a solid option. The next big standout in the second week is Friday morning, August 29th. That’s a promising 3ft SW swell (375 energy) with glassy conditions, but it’s far out so keep an eye on it. The energy levels dip below 200 for a couple of days around the 26th and 27th, so that’s a bit of a lull, but the consistency at Cabo is decent enough that it won’t stay flat for long.
Rusty.
Short Range ForecastHeavy rain (total 93mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Wed night. Warm (max 29°C on Wed morning, min 24°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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) | 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 | SW 14 | SSW 10 | SSW 13 | SSW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 540 | 516 | 582 | 567 | 560 | 539 | 355 | 355 | 355 | 231 | 280 | 268 | 288 | 258 | 362 | 217 | 214 | 160 | 154 | 447 | 245 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | glassy | cross-on | cross | cross | cross-on | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | on | cross-off | glassy | on | glassy |
High Tide | 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 | 8:48AM2.53m | 9:21PM2.22m | ||||||||
Low Tide | 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 | 3:13PM0.77m | 3:23AM0.95m | |||||||
 |  |  |  | | | |  |  | | |  | | | | | |  | | | | |
 | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:49 | — | — | 6:47 | — | — | 6:47 | — | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | — | 6:45 | — |
mm | — | 5 | 11 | 2 | 15 | 30 | 3 | 7 | 20 | 3 | 4 | 1 | — | 2 | 5 | 1 | 8 | 10 | 1 | 15 | 5 |
Temp °C | 29 | 29 | 28 | 29 | 28 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 28 | 28 | 26 | 29 | 29 | 26 | 29 | 28 | 25 |
Feels °C | 32 | 32 | 32 | 32 | 31 | 29 | 30 | 29 | 30 | 31 | 31 | 31 | 31 | 32 | 31 | 33 | 33 | 30 | 33 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 13 | SSW 11 |
| kJ | 217 | 516 | 582 | 567 | 560 | 539 | 110 | 93 | 111 | 169 | 139 | 132 | 139 | 115 | 121 | 129 | 135 | 156 | 154 | 447 | 245 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 7 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 13 | SW 18 | SW 13 |
| kJ | 540 | 252 | 189 | 186 | 246 | 91 | 355 | 355 | 355 | 231 | 280 | 268 | 288 | 258 | 362 | 217 | 214 | 160 | 116 | 12 | 82 |
Swell 3 Height (m) Direction Period (s) | W 13 | SW 15 | SSW 10 | — | SW 9 | S 11 | S 11 | S 11 | S 11 | S 16 | S 10 | S 10 | S 13 | S 12 | W 8 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | SW 18 | WSW 6 |
| kJ | 4 | 33 | 9 | — | 3 | 59 | 37 | 37 | 20 | 5 | 18 | 8 | 3 | 3 | 6 | 17 | 15 | 14 | 8 | 12 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 16 | 7 | 0 | 16 | 15 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 123 | 0 | 0 | 16 | 0 | 0 | 7 | 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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