Surf Forecasts:
Cabo Blanco surf forecast from 24 Aug 2026:
- Best quality surf: Friday 28 Aug, 10PM (local time) - 3ft (0.9m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 4PM (local time) - 4.5ft (1.3m), 16s period, SW swell with 823 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 10PM (local time) - 1.5ft (0.5m), 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 Sunday (Aug 23) at 10PM. The primary swell is predicted to be 0.5m and 18s period with a secondary swell of 0.9m and 9s. Another secondary swell of 0.6m and 13s is also forecast. 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 1.3m 16s and forecast to arrive on Saturday (Aug 29) at 4PM. 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+) | 10PM (Sun 23rd Aug) | 1.5ft (0.5m) 18s |
| Best Surf | 10PM (Fri 28th Aug) | 3ft (0.9m) 18s |
| Most Powerful | 4PM (Sat 29th Aug) | 4.5ft (1.3m) 16s |
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 what's in store for us at Cabo Blanco.
Overall, we've got a solid run of waves coming through, with some absolute gems hiding in there. The water is a balmy 87°F at the start; that's much warmer than usual for this time of year, so you can leave the thick rubber at home.
We kick off this Sunday, the 23rd of August, with a clean and tiny 2ft swell from the southwest. It’s not going to get your heart racing, but with glassy conditions and the wind being dead calm from the east, it’s a beautiful morning for a longboard or a foiler. The afternoon turns a bit stormy, but the mornings are where the magic is early on.
Monday morning is another glassy start, same small 2ft southwest swell, and it's just as clean. It’s a pattern you can set your watch to: glassy dawn patrols and afternoon onshores.
The standout period really starts to build from the 29th of August. That Saturday morning we'll see a jump to 4ft from the southwest, clean and glassy with a decent 16-second period. The energy is ramping up. It's still fun-sized, so it's a good one for everyone.
But hold onto your leggies, because the 4th of September is the big one. Friday morning dishes up a 5ft southwest swell with perfect 18-second period groundswell. The energy is pumping, and it's dead flat calm, glassy as a mirror. This is the pick of the whole run; it’s an excellent session for experienced surfers. The swell is pushing past 5ft, so it's not for the groms, but the power and length on those lines will be something special. The following morning on the 5th of September is just as good, another 5ft southwest swell with glassy conditions and excellent quality for the crew who know what they're doing.
The 7th of September sees a bit of a drop-off, but it's still a very good 4ft southwest swell with clean morning conditions to finish the run.
The only thing to keep in mind is that the afternoon sessions almost always get a risk of thunderstorms and a messy onshore wind. Get on it in the mornings. Also, Cabo Blanco can get crowded sometimes, so if that 4th of September dawn patrol is as good as it looks, you'll want to be early.
Don't stress about the gaps; there aren't any real dead spells here, just small clean mornings that lead into that absolute belter of a week in September.
Rusty.
Short Range ForecastHeavy rain (total 59mm), heaviest during Tue night. Warm (max 29°C on Sun morning, min 24°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Fri night. Warm (max 29°C on Fri morning, min 25°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 19 | SW 18 | SSW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SSW 16 | SSW 15 | SW 15 | SSW 15 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 20 | SW 20 | SW 18 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 184 | 168 | 216 | 155 | 202 | 274 | 129 | 171 | 158 | 106 | 84 | 81 | 81 | 81 | 140 | 239 | 186 | 595 | 589 | 823 | 743 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | cross-on | cross | glassy | cross-on | off | glassy | cross-on | glassy | glassy | on | glassy | glassy | on | cross | glassy | on | cross |
High Tide | 11:56AM2.24m | 00:52AM2.11m | 1:02PM2.31m | 1:49AM2.24m | 1:56PM2.43m | 2:34AM2.42m | 2:41PM2.56m | 3:13AM2.60m | 3:21PM2.69m | 3:48AM2.77m | 3:58PM2.79m | 4:22AM2.91m | 4:34PM2.86m | ||||||||
Low Tide | 6:32PM0.90m | 6:49AM1.07m | 7:31PM0.80m | 7:47AM0.96m | 8:18PM0.67m | 8:34AM0.81m | 8:58PM0.54m | 9:15AM0.66m | 9:34PM0.43m | 9:53AM0.52m | 10:08PM0.34m | 10:30AM0.40m | 10:42PM0.29m | ||||||||
 |  |  |  | | | | | |  | |  | | | | | | | | | | |
 | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:42 | — |
mm | — | 4 | 1 | — | 4 | 7 | 5 | 13 | 25 | — | 1 | — | 3 | 5 | 1 | — | 6 | 5 | — | 3 | 6 |
Temp °C | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 25 | 26 | 27 | 26 | 28 | 28 | 26 | 29 | 29 | 27 | 29 | 29 | 27 |
Feels °C | 34 | 32 | 32 | 32 | 32 | 31 | 33 | 31 | 29 | 30 | 31 | 31 | 32 | 32 | 31 | 33 | 33 | 31 | 33 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 10 | S 10 | SW 16 | S 9 | SSW 8 | SSW 6 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 18 | SW 16 | SW 16 | SW 15 |
| kJ | 113 | 142 | 136 | 117 | 117 | 274 | 55 | 55 | 60 | 93 | 70 | 60 | 44 | 44 | 42 | 32 | 31 | 595 | 589 | 823 | 743 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 18 | SW 12 | SSW 17 | S 9 | SW 16 | SSW 16 | SSW 15 | SW 15 | SSW 15 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SSW 16 | SW 6 | SSW 6 | SW 6 | SSW 6 |
| kJ | 121 | 116 | 216 | 73 | 202 | 55 | 129 | 171 | 158 | 106 | 84 | 81 | 81 | 81 | 140 | 129 | 181 | 34 | 61 | 54 | 44 |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 18 | SSW 13 | SW 18 | SSW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SSW 10 | SSW 19 | SW 14 | SW 15 | SSW 12 | SW 20 | SW 20 | SSW 11 | SW 13 | S 10 | WSW 7 |
| kJ | 184 | 168 | 114 | 155 | 57 | 36 | 36 | 30 | 30 | 30 | 22 | 36 | 51 | 76 | 50 | 239 | 186 | 40 | 44 | 32 | 25 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 25 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 123 | 0 | 0 | 16 | 15 | 0 | 16 | 0 | 0 | 152 | 0 | 0 | 149 | 0 | 0 | 16 | 8 | 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.
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