Surf Forecasts:
Cabo Blanco surf forecast from 26 Aug 2026:
- Best quality surf: Friday 28 Aug, 10PM (local time) - 3ft (0.9m), 18s period, SW swell with glassy 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★+): Tuesday 25 Aug, 10PM (local time) - 2ft (0.6m), 16s 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 25) at 10PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.5m and 7s. 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 (Tue 25th Aug) | 2ft (0.6m) 16s |
| 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
Righto, let's have a look at what's coming up for Cabo Blanco. The water’s sitting at 87°, which is much warmer than usual for this time of year—a good four degrees-plus above the norm, so you’ll be in for a warm one if you paddle out.
The next week and a half are a bit of a mixed bag, but there’s a couple of real gems to aim for. The overall pattern kicks off with some small, clean windows, building into a solid pulse of energy towards the end of the first week and into the second.
Tuesday, 25 August is a write-off, with thunderstorms and messy winds.
Wednesday, 26 August gets interesting. Early morning you’ve got glassy conditions and a clean 2ft SW swell with a very long 15-second period. That’s proper groundswell energy, and even though it’s small, the combined swell energy is moderate (196). That’s a sneaky-good session for a log or a fish.
Thursday, 27 August morning is another good one: glassy again, with a 3ft SSW swell. The period is short at 6 seconds, but the wind is dead calm, so it’ll be clean. Combined energy is still moderate (214).
Friday, 28 August starts glassy and clean with a 2ft SW swell and a very long 20-second period. The energy is picking up—combined energy now 350. The morning will be clean, but the swell is tiny. The afternoon stays glassy and clean.
Saturday, 29 August morning is the first standout. A clean 4ft SW swell with a 16-second period, glassy conditions, and combined energy jumping to a strong 686. This is going to be fun, with long lines and not much wind. The afternoon gets onshore, but the morning is choice.
Sunday, 30 August morning is also top-shelf. 4ft SW swell, 14-second period, glassy, and combined energy at 717. This is the biggest clean swell of the first week, with good power and shape.
Monday, 31 August morning holds at 3ft SW with a 13-second period, glassy, and moderate energy (417). Still a good go.
After that, there’s a lull in quality through Tuesday, 2 September and Wednesday, 3 September mornings, with small swells around 2-2ft and clean conditions, but nothing that will get the heart racing.
Friday, 4 September morning is the next true standout. That’s over a week away now, so keep an eye on it. Clean 4ft SW swell with an 18-second period, glassy, and combined energy is a very strong 881. That has real punch and long, lined-up sets.
Saturday, 5 September morning is almost as good: 5ft SW swell—the biggest of the run—with a 16-second period, glassy, and combined energy of 918. This is expert territory at that size, but if you can handle it, these are the best waves on offer.
Sunday, 6 September morning holds at 4ft SW with a 14-second period, glassy, and solid 558 combined energy. The whole weekend looks promising.
From there, the energy backs off a touch but remains clean through Monday and Tuesday mornings, with smaller 2-3ft SW swells and glassy conditions. A good end to the run.
Overall, the best windows are Saturday 29 August morning, Sunday 30 August morning, and Friday 4 September and Saturday 5 September mornings. The bigger swells favour the point setup at Cabo Blanco—that long-period groundswell will wrap in nicely. Crowds are possible on peak days, so get in early.
Rusty.
Short Range ForecastHeavy rain (total 55mm), heaviest during Wed night. Warm (max 29°C on Tue afternoon, min 25°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 34mm), heaviest during Fri afternoon. Warm (max 29°C on Sat morning, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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 16 | SSW 15 | SW 15 | S 7 | SSW 6 | SW 18 | SW 18 | SW 17 | SW 20 | SW 20 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SW 13 |
Wave Graph | ||||||||||||||||||||
171 | 158 | 106 | 92 | 90 | 81 | 81 | 140 | 186 | 186 | 595 | 581 | 823 | 733 | 676 | 521 | 368 | 309 | 304 | 245 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | cross-on | cross | cross-on | cross-off | glassy | glassy | glassy | glassy | on | glassy | cross-on | cross-on | cross-on | cross | on | glassy |
High Tide | 2:34AM2.42m | 2:41PM2.56m | 3:13AM2.60m | 3:21PM2.69m | 3:48AM2.77m | 3:58PM2.79m | 4:22AM2.91m | 4:34PM2.86m | 4:55AM3.01m | 5:11PM2.88m | 5:29AM3.06m | 5:48PM2.86m | ||||||||
Low Tide | 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 | 11:05AM0.32m | 11:16PM0.28m | 11:42AM0.28m | 11:51PM0.30m | |||||||
— | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:42 | — | — | 6:40 | — | — | 6:40 | — | |
mm | 13 | 6 | 1 | 7 | 10 | — | 8 | 6 | 4 | 9 | 2 | — | 3 | 2 | 1 | 8 | 8 | 1 | 37 | 15 |
Temp °C | 29 | 27 | 29 | 29 | 26 | 29 | 29 | 27 | 29 | 28 | 26 | 29 | 29 | 27 | 29 | 28 | 25 | 29 | 28 | 25 |
Feels °C | 34 | 32 | 33 | 32 | 30 | 33 | 32 | 32 | 33 | 32 | 31 | 33 | 33 | 32 | 32 | 30 | 30 | 33 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | S 7 | S 7 | S 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SW 7 |
171 | 36 | 33 | 92 | 90 | 75 | 71 | 43 | 34 | 36 | 595 | 581 | 823 | 733 | 676 | 521 | 368 | 309 | 304 | 173 | |
Swell 2 Height (m) Direction Period (s) | S 8 | SSW 15 | SSW 7 | SSW 15 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SSW 16 | SSW 6 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | SSW 6 | W 10 | W 9 | SW 13 |
37 | 158 | 41 | 84 | 81 | 81 | 81 | 140 | 129 | 181 | 48 | 48 | 45 | 28 | 18 | 29 | 55 | 9 | 7 | 245 | |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 15 | SSW 11 | SSW 19 | SW 14 | SW 15 | SSW 12 | SW 20 | SW 20 | S 11 | SW 13 | S 10 | SSW 10 | WSW 6 | WSW 6 | WSW 6 | SW 20 | SW 20 | W 8 |
30 | 30 | 106 | 11 | 36 | 51 | 76 | 50 | 186 | 186 | 38 | 43 | 18 | 33 | 12 | 12 | 7 | 15 | 15 | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 6 | WSW 6 | — | — | — | — | — | — | — | — | W 6 | SSW 7 | SW 7 | — |
— | — | — | — | — | — | 18 | 10 | — | — | — | — | — | — | — | — | 11 | 199 | 233 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 149 | 15 | 0 | 152 | 15 | 15 | 16 | 0 | 0 | 0 | 0 | 0 | 143 | 0 | 7 | 15 | 15 | 15 | 16 | 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.











