Surf Forecasts:
Cabo Blanco surf forecast from 29 Aug 2026:
- Best quality surf: Saturday 29 Aug, 4AM (local time) - 3.5ft (1.1m), 18s period, SW swell with glassy winds.
- Most powerful swell: Friday 4 Sep, 1PM (local time) - 4ft (1.2m), 17s period, SW swell with 851 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 4AM (local time) - 3.5ft (1.1m), 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 Saturday (Aug 29) at 4AM. The primary swell is predicted to be 1.1m and 18s period with a secondary swell of 0.8m and 6s. 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 1.2m 17s and forecast to arrive on Friday (Sep 04) at 1PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 29th Aug) | 3.5ft (1.1m) 18s |
| Best Surf | 4AM (Sat 29th Aug) | 3.5ft (1.1m) 18s |
| Most Powerful | 1PM (Fri 4th Sep) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Cabo Blanco over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's coming our way at Cabo Blanco. This place is exposed to the open ocean, and it's about to get a solid run of groundswell. The water is sitting at a balmy 86°, which is a touch warmer than normal for this time of year, something to keep in mind if you're not used to it.
We've got a bit of a wait for the real magic. The first couple of days are a bit of a tease. Friday afternoon the 28th has a small 2ft SW swell, but there's a risk of thunderstorms and it's just marginal. Let's skip that.
The action really kicks off on Saturday morning, August 29th. We've got a clean 4ft SW groundswell with a long 16-second period, and the wind is glassy out of the west. The combined energy is ramping up to 666, a solid moderate reading. That morning window is the real deal for clean, lined-up waves.
Sunday morning, the 30th, is another standout. The swell holds at a slightly bigger 4ft from the SW, period a touch shorter at 14 seconds, but the wind is completely calm – glassy as it gets. The energy is up at 754. This is going to be smooth, clean, and probably the pick of the first week. Crowds can be an issue here sometimes, so get out early.
The pattern continues for the next week, with a long-period SW groundswell pulsing through. The mornings are your golden ticket. Monday the 31st and Tuesday the 1st are smaller and a bit wind-affected, but then Wednesday morning the 2nd of September brings a glassy 3ft SSW swell with a 13-second period (energy at 423), and that’s a good, clean option for smaller boards.
Now, if you can hold out, the real highlight might be Friday morning, September 4th. The swell jumps back up to 4ft from the SW, but with a very long 17-second period. The combined energy hits 825, a solid moderate to strong reading. The wind is glassy from the WNW. That's a promise of smooth, powerful lines.
Saturday the 5th gets bigger, with a 5ft SW swell and energy cracking 1011 – that's strong energy. But the wind turns cross-onshore, chopping it up. That's a whole lot of juice but messy conditions; it might actually be more fun for the kite crew than us paddle surfers that morning.
Looking into the second week, things settle down. Sunday the 6th through to the following weekend stay in the 2ft to 4ft range. The real highlight to look forward to is Wednesday morning, September 9th, and Friday morning, September 11th. Both mornings show glassy conditions (the 11th is flat calm) with clean 3ft to 4ft SW groundswell. These look like promising, clean sessions, but being that far out, we'll have to keep an eye on it. The consistency is there, just a bit less grunt than that first weekend.
Overall, the first weekend is your best bet for stand-out waves. The long-period groundswell is perfect for this exposed point setup.
Stay stoked, Rusty.
Short Range ForecastHeavy rain (total 41mm), heaviest during Fri night. Warm (max 29°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 64mm), heaviest during Wed night. Warm (max 29°C on Thu morning, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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 20 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SW 12 | SW 12 | SSW 12 | SSW 13 | SSW 13 | SW 17 | SW 16 | SW 19 | SW 18 |
Wave Graph | ||||||||||||||||||||
219 | 595 | 581 | 823 | 733 | 676 | 521 | 368 | 347 | 304 | 245 | 220 | 216 | 180 | 215 | 227 | 222 | 203 | 347 | 528 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | on | cross | glassy | on | cross | cross-on | cross-on | glassy | glassy | on | cross | glassy | on | cross | glassy | on | cross |
High Tide | 4:22AM2.91m | 4:34PM2.86m | 4:55AM3.01m | 5:11PM2.88m | 5:29AM3.06m | 5:48PM2.86m | 6:05AM3.06m | 6:27PM2.80m | 6:44AM3.00m | 7:09PM2.69m | 7:28AM2.90m | 7:58PM2.56m | ||||||||
Low Tide | 10:08PM0.34m | 10:30AM0.40m | 10:42PM0.29m | 11:05AM0.32m | 11:16PM0.28m | 11:42AM0.28m | 11:51PM0.30m | 12:20PM0.28m | 00:29AM0.37m | 1:02PM0.34m | 1:11AM0.47m | 1:49PM0.43m | 2:00AM0.60m | |||||||
— | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
6:42 | — | — | 6:42 | — | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — | |
mm | 8 | 10 | — | 5 | 1 | 1 | 7 | 6 | 3 | 13 | 11 | — | 12 | 10 | — | 5 | 13 | — | 1 | — |
Temp °C | 29 | 25 | 28 | 28 | 27 | 29 | 28 | 27 | 28 | 27 | 25 | 28 | 27 | 25 | 28 | 28 | 25 | 29 | 29 | 27 |
Feels °C | 33 | 30 | 32 | 31 | 32 | 33 | 31 | 32 | 33 | 31 | 30 | 32 | 30 | 28 | 32 | 31 | 28 | 32 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 7 | SSW 6 | SSW 6 | SW 12 | SSW 12 | SSW 6 | SSW 6 | SSW 12 | SSW 12 | SSW 12 | SW 18 |
36 | 595 | 581 | 823 | 733 | 676 | 521 | 368 | 347 | 105 | 96 | 67 | 216 | 180 | 56 | 55 | 187 | 125 | 203 | 528 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 10 | S 6 | SW 6 | SSW 7 | SSW 13 | SW 13 | SW 12 | SSW 6 | S 6 | SSW 13 | SSW 13 | SSW 6 | SSW 6 | SW 19 | SSW 11 |
219 | 48 | 45 | 44 | 20 | 70 | 28 | 35 | 66 | 304 | 245 | 220 | 40 | 28 | 215 | 215 | 45 | 35 | 347 | 200 | |
Swell 3 Height (m) Direction Period (s) | SW 20 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SW 6 | S 10 | S 9 | SW 20 | SW 20 | SW 20 | SW 18 | W 6 | W 6 | SW 18 | SW 17 | SW 17 | SW 16 | SW 15 | W 9 |
186 | 40 | 40 | 33 | 33 | 8 | 16 | 6 | 15 | 15 | 15 | 84 | 20 | 18 | 152 | 227 | 222 | 203 | 106 | 14 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 6 | — | — | — | — | — | — | — | — | WSW 7 | — | — | — | — |
— | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | 15 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 111 | 0 | 0 | 16 | 7 | 0 | 16 | 7 | 7 | 7 | 0 | 0 | 149 | 15 | 0 | 16 | 15 | 0 | 123 | 8 |
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.











