Surf Forecasts:
Cabo Blanco surf forecast from 6 Sep 2026:
- Best quality surf: Monday 7 Sep, 4AM (local time) - 3.5ft (1.1m), 14s period, SW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 3.5ft (1.0m), 18s period, SW swell with 600 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 4AM (local time) - 3.5ft (1.1m), 14s 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 Monday (Sep 07) at 4AM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 1.0m 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 1.0m 18s and forecast to arrive on Thursday (Sep 10) at 1AM. 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+) | 4AM (Mon 7th Sep) | 3.5ft (1.1m) 14s |
| Best Surf | 4AM (Mon 7th Sep) | 3.5ft (1.1m) 14s |
| Most Powerful | 1AM (Thu 10th Sep) | 3.5ft (1.0m) 18s |
Table - best surf conditions forecast for Cabo Blanco over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down the next couple of weeks at Cabo Blanco. It’s not gonna be pumping massive surf, but there’s a steady run of clean, small-to-medium waves if you’re on the ball. The water temp is 86°, which is a touch warmer than normal for this time of year.
Kicking off Sunday the 6th, but Monday the 7th is pretty much a waste—small, weak, and messy. The first real chance comes Tuesday morning the 8th. Wind goes glassy out of the ESE, with waves around 2ft from the SSW, a long 18-second period, and combined energy at 500—moderate push. That southwest swell direction is exactly what Cabo Blanco is exposed to. It’s small but clean, perfect for a log or a mid-length. Crowds are possible here at times, so expect a few regulars in the water.
Wednesday the 9th morning mirrors it: glassy, 3ft SSW at 16 seconds (energy 518). This is your early pick—clean, rippable, and that long period will give the waves some shape, especially since the point handles that energy nicely. Thursday the 10th morning stays glassy, 3ft SW, 15 seconds (energy 574). Still clean and fun.
Friday the 11th morning goes dead calm—glassy, 3ft SW, 16 seconds (energy 530). That’s a beauty window for an early paddle. Saturday the 12th morning: glassy with ENE breeze, 3ft SW at 14 seconds (305 energy), a little less punch but still clean. Afternoons get onshore, so mornings are the move across this whole first week.
Into the second week, the pattern holds but the swell drops. Sunday the 13th morning: glassy, 2ft SW (287 energy). Monday the 14th offers a tiny 1ft groundswell with a very long 21-second period (289 energy)—glass but for a longboard only. Tuesday the 15th and Wednesday the 16th mornings both glass off with 2 to 3ft SW swells (402 to 492 energy). The standout later in the run? Thursday the 17th morning: 3ft SW at 14 seconds, glassy, moderate energy of 386. Not big, but consistent and clean.
Best bets are Tuesday the 8th, Wednesday the 9th, and Friday the 11th mornings for the cleanest, most user-friendly waves at Cabo Blanco. Dawn patrol is your ticket here.
Stay stoked,
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Sun night. Warm (max 29°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 62mm), heaviest during Fri night. Warm (max 29°C on Fri morning, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 18 | SW 16 | SW 16 | SSW 16 | SW 16 | SW 18 | SW 15 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 623 | 536 | 463 | 379 | 261 | 249 | 270 | 278 | 258 | 318 | 255 | 600 | 318 | 502 | 560 | 489 | 365 | 301 | 248 | 248 | 144 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross | glassy | on | glassy | glassy | cross-on | cross | glassy | cross-on | cross-off | glassy | on | glassy | glassy | on | glassy |
High Tide | 10:36AM2.54m | 11:31PM2.36m | 11:56AM2.55m | 00:47AM2.50m | 1:09PM2.66m | 1:51AM2.71m | 2:10PM2.80m | 2:43AM2.92m | 3:02PM2.93m | 3:29AM3.09m | 3:48PM3.02m | 4:11AM3.19m | 4:31PM3.05m | ||||||||
Low Tide | 5:10PM0.68m | 5:38AM0.84m | 6:26PM0.60m | 6:55AM0.72m | 7:31PM0.46m | 7:59AM0.55m | 8:25PM0.31m | 8:53AM0.37m | 9:13PM0.20m | 9:40AM0.22m | 9:56PM0.14m | 10:23AM0.13m | 10:37PM0.14m | ||||||||
 | |  |  |  |  | | |  | | | | | | | | | |  | | | |
 | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:36 | — | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — |
mm | 1 | 9 | 13 | — | — | — | 1 | 1 | 2 | 2 | 7 | 5 | 4 | 10 | 8 | — | 9 | 17 | — | 3 | 4 |
Temp °C | 29 | 28 | 25 | 27 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 29 | 28 | 25 | 29 | 29 | 27 |
Feels °C | 33 | 32 | 29 | 31 | 32 | 30 | 33 | 32 | 32 | 33 | 31 | 31 | 31 | 31 | 30 | 33 | 31 | 30 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SW 13 | SW 16 | SSW 16 | SW 16 | SW 18 | SW 15 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 6 | SSW 8 |
| kJ | 623 | 536 | 463 | 379 | 261 | 249 | 219 | 170 | 258 | 318 | 255 | 600 | 318 | 502 | 560 | 489 | 365 | 301 | 248 | 39 | 72 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 6 | WSW 6 | S 6 | S 6 | SSW 18 | SW 16 | SSW 12 | SW 12 | SW 12 | SSW 11 | SW 18 | S 10 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 14 | SW 13 |
| kJ | 54 | 99 | 85 | 33 | 39 | 27 | 270 | 278 | 94 | 67 | 68 | 39 | 249 | 48 | 28 | 20 | 32 | 31 | 26 | 248 | 144 |
Swell 3 Height (m) Direction Period (s) | WNW 8 | W 8 | WNW 11 | S 7 | WSW 6 | SSW 18 | S 6 | S 6 | W 11 | SW 19 | SW 19 | WNW 10 | SSW 6 | W 10 | WNW 10 | S 11 | S 9 | S 10 | SSW 18 | SW 18 | SSW 21 |
| kJ | 14 | 12 | 11 | 32 | 29 | 211 | 11 | 10 | 36 | 133 | 131 | 20 | 7 | 17 | 9 | 21 | 15 | 8 | 31 | 79 | 44 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 15 | 7 | 7 | 15 | 15 | 0 | 7 | 0 | 0 | 15 | 15 | 0 | 15 | 0 | 0 | 16 | 0 | 0 | 111 | 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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