Surf Forecasts:
Cabo Blanco surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 7AM (local time) - 2.5ft (0.7m), 18s period, SSW 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, 7PM (local time) - 3ft (0.9m), 13s 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 7PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.6m 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. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Sep 14) at 7AM.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Mon 7th Sep) | 3ft (0.9m) 13s |
| Best Surf | 7AM (Tue 8th Sep) | 2.5ft (0.7m) 18s |
| 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
Alright folks, Rusty here. We’ve got a solid run of surf coming up at Cabo Blanco over the next couple of weeks, so let’s get into it.
The pattern starts off with a clean, fun-sized southwest swell. Monday morning the 7th kicks things off with a smooth 3ft swell from the SW, period around 14 seconds, and a light NNE breeze keeping it glassy. The water’s sitting at 86°, which is a touch warmer than normal for this time of year — feels good. Energy is moderate at 430, nothing crazy but plenty to get you into a wave. The afternoon gets a bit messy with a cross-on wind, so make the most of the early session.
Tuesday morning the 8th is a standout. Glassy conditions, zero wind, and a long-period SSW groundswell of 2ft with an 18-second period. That’s proper groundswell energy, and the combined energy jumps to 500. These long-period waves will hold up nicely at Cabo Blanco’s exposed point setup — they’ll peel with real shape. Paddling out will be easier between sets too. This is the call for the week.
Wednesday morning the 9th is another beauty. Glassy again with a light WSW breeze, 3ft SSW swell, 16-second period, and combined energy of 518. Just clean, lined-up waves. The afternoons through the week tend to get a bit of a storm risk and cross-on wind, but the mornings are consistently gold.
Thursday morning the 10th has a 3ft SW swell with a 15-second period, but a cross breeze keeps it from being perfect. Still worth a paddle if you’re keen. Friday morning the 11th though — glassy again, 3ft SW swell, 16-second period, combined energy of 526. That’s your other standout. Clean, solid, and the swell direction matches the optimum SW direction perfectly. Crowds can be around sometimes, but with conditions this good, you’ll be sharing waves with a few happy locals.
Saturday morning the 12th and Sunday morning the 13th stay clean with glassy winds and 3ft to 2ft SW swell. Smaller but still fun, especially if you’ve got a log or a fish. Monday the 14th brings a slightly different S swell with a short 7-second period — that’s more windswell, but it’s glassy and 4ft, so there’ll be something to ride.
The second week settles into a pattern of smaller, cleaner mornings. Tuesday the 15th through Friday the 18th all offer glassy starts with SW to SSW swells between 2ft and 3ft, periods mostly in the 14-18 second range. The combined energy is solid, often in the 400s. The afternoons are a write-off with storm risk and onshore winds, but the early birds will get their fill.
By the weekend of the 19th and 20th, the swell drops to 1ft to 2ft, and the winds turn cross-on. Not worth getting excited about. The 21st and 22nd are similar — small, wonky, and mostly a pass.
Overall, the best of the best is Tuesday morning the 8th and Friday morning the 11th. Glassy, long-period, clean southwest groundswell with moderate energy. That’s where you want to be.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Wed afternoon. Warm (max 29°C on Mon morning, min 26°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 61mm), heaviest during Sat night. Warm (max 29°C on Thu morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 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 | SW 13 | SSW 9 | SW 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 379 | 261 | 249 | 270 | 278 | 258 | 318 | 255 | 600 | 318 | 502 | 560 | 489 | 365 | 301 | 248 | 248 | 144 | 140 | 101 | 183 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | glassy | glassy | on | glassy | glassy | cross-on | cross | cross | cross-on | cross | glassy | on | glassy | glassy | on | glassy | glassy | on | glassy |
High Tide | 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 | 4:50AM3.21m | 5:12PM3.01m | ||||||||
Low Tide | 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 | 11:04AM0.11m | 11:16PM0.20m | ||||||||
 | |  |  | |  | | | | | | | | | |  | | | | | | |
 | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 6:37 | — | — | 6:36 | — | — | 6:36 | — | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — | — | 6:34 | — |
mm | — | — | — | 1 | 4 | 3 | 2 | 6 | 3 | 2 | 9 | 11 | 1 | 11 | 4 | — | 11 | 12 | — | 4 | 7 |
Temp °C | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 29 | 28 | 27 | 28 | 28 | 26 | 29 | 29 | 26 | 28 | 29 | 27 |
Feels °C | 33 | 32 | 32 | 33 | 32 | 32 | 33 | 31 | 30 | 32 | 31 | 31 | 34 | 32 | 30 | 32 | 33 | 31 | 32 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | 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 | SW 14 | SSW 9 | SSW 9 | SSW 9 | SSW 8 |
| kJ | 379 | 261 | 249 | 219 | 170 | 258 | 318 | 255 | 600 | 318 | 502 | 560 | 489 | 365 | 301 | 248 | 248 | 77 | 103 | 101 | 107 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | SSW 18 | SSW 18 | SW 16 | SSW 12 | SW 12 | SSW 12 | SSW 11 | SW 18 | SSW 6 | SSW 6 | S 6 | S 6 | SSW 6 | SSW 8 | SSW 8 | SW 13 | SW 13 | SW 13 | SW 13 |
| kJ | 30 | 29 | 211 | 270 | 278 | 125 | 67 | 93 | 39 | 249 | 32 | 44 | 27 | 28 | 30 | 55 | 72 | 144 | 140 | 84 | 82 |
Swell 3 Height (m) Direction Period (s) | WSW 6 | WSW 6 | S 6 | S 6 | S 6 | W 11 | SW 19 | SW 19 | W 10 | S 6 | S 10 | WNW 10 | WNW 10 | SSW 19 | S 10 | SSW 18 | SW 18 | SSW 18 | SSW 21 | SSW 16 | SW 19 |
| kJ | 21 | 21 | 18 | 11 | 11 | 36 | 133 | 131 | 32 | 30 | 17 | 9 | 10 | 37 | 8 | 31 | 79 | 30 | 44 | 50 | 183 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 7 | 0 | 0 | 143 | 0 | 0 | 16 | 15 | 15 | 15 | 7 | 0 | 16 | 0 | 0 | 111 | 0 | 0 | 143 | 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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