Surf Forecasts:
Cabo Blanco surf forecast from 8 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 7AM (local time) - 2.5ft (0.7m), 18s period, SSW swell with offshore 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★+): Tuesday 8 Sep, 7AM (local time) - 2.5ft (0.7m), 18s 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 (Sep 08) at 7AM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.9m and 13s. The wind is predicted to be offshore 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 0.3m 3s period and expected on Monday (Sep 14) at 4AM.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 8th Sep) | 2.5ft (0.7m) 18s |
| 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, let's break this down in feet and miles. The story is the same: Cabo Blanco is the only game in town, and it's all about the early morning windows.
The overall pattern is a long stretch of small to moderate SW groundswell, with clean conditions only in the mornings. The afternoons are a total write-off with storm risks and onshore breezes, so don't even think about a late session.
We start on Tuesday, 8th September. The morning is a gift from the ocean gods – glassy, a clean 2ft SSW swell with a very long 18-second period, and moderate wave energy (456). This is a proper groundswell, and it'll have some real push. The water temp is about average for the season, so no surprises. Crowds are "sometimes," so you'll likely have the place to yourself or just a few others.
The afternoons turn ugly, but the mornings keep delivering. Friday, 11th September is the absolute standout. Glassy, calm, a 3ft SW swell with a 16-second period, and energy at 528. The forecast is calling it "very good surf conditions" – that's the real deal.
Wednesday, 16th September morning is another one to lock in. Glassy conditions, 3ft SSW swell, 16-second period, energy at 516. The pattern is dead obvious: the mornings are the only time to go.
Later on, Monday, 21st September morning is calm and glassy with a 2ft SW swell, 18-second period. Tuesday, 22nd September morning is also glassy with a 2ft SW swell. The 23rd morning looks good too, with a glassy 3ft SSW, though the period drops to 10 seconds.
The standout for the whole 16 days is that Friday the 11th morning. The combination of glassy wind, a clean 3ft swell, and that long-period energy makes it the best of the bunch. The 8th September morning is a very close second.
For the afternoons, just don't. The wind swings onshore, the quality goes in the toilet, and the storm risk is high. The swell is too small and the conditions too messy for a good paddle.
So, the bottom line: get up early for the 8th, 11th, 16th, and 21st. The 11th is the one to dream about. The rest of the time, you're better off doing something else.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Wed afternoon. Warm (max 29°C on Tue morning, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 50mm), heaviest during Fri afternoon. Warm (max 29°C on Sat morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | 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 8 | SW 19 | SW 19 | SW 18 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 270 | 278 | 258 | 318 | 255 | 600 | 318 | 502 | 496 | 489 | 365 | 301 | 248 | 211 | 144 | 140 | 112 | 183 | 90 | 150 | 255 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-off | glassy | on | glassy | glassy | on | off | glassy | cross-on | cross-off | glassy | cross-on | glassy |
High Tide | 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 | 5:28AM3.15m | 5:51PM2.92m | ||||||||
Low Tide | 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 | 11:43AM0.16m | 11:54PM0.31m | |||||||
 |  |  | | | | | | | | | |  | | | | | |  | | | |
 | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 6:36 | — | — | 6:36 | — | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — | — | 6:34 | — | — | 6:32 | — |
mm | — | 5 | 3 | 2 | 7 | 6 | 3 | 6 | 7 | 1 | 14 | 4 | 1 | 8 | 4 | 4 | 7 | 6 | — | 3 | 4 |
Temp °C | 29 | 28 | 27 | 29 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 29 | 28 | 26 | 28 | 28 | 26 | 29 | 28 | 26 |
Feels °C | 33 | 32 | 32 | 32 | 31 | 31 | 33 | 30 | 30 | 34 | 32 | 31 | 33 | 31 | 30 | 32 | 31 | 30 | 33 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 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 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 |
| kJ | 175 | 170 | 258 | 318 | 255 | 600 | 318 | 502 | 496 | 489 | 365 | 301 | 248 | 211 | 80 | 103 | 112 | 86 | 77 | 86 | 86 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 16 | SSW 12 | SW 12 | SW 12 | S 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 6 | SSW 8 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 18 | WSW 6 |
| kJ | 270 | 278 | 125 | 67 | 68 | 24 | 33 | 48 | 43 | 29 | 29 | 38 | 24 | 55 | 144 | 140 | 84 | 82 | 73 | 150 | 42 |
Swell 3 Height (m) Direction Period (s) | S 6 | S 6 | WNW 11 | SW 19 | SW 19 | W 10 | SW 18 | S 10 | WNW 10 | WNW 10 | SSW 19 | WNW 10 | SSW 8 | SW 18 | SSW 18 | SSW 21 | SSW 16 | SW 19 | SW 19 | SW 12 | SW 18 |
| kJ | 11 | 11 | 22 | 133 | 131 | 32 | 249 | 17 | 9 | 10 | 37 | 10 | 24 | 79 | 30 | 44 | 50 | 183 | 90 | 37 | 255 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WSW 6 | W 10 | — | — | — | — | — | — | — | — | — | — | — | — | E 3 | — | — |
| kJ | — | — | — | — | 7 | 52 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 150 | 0 | 15 | 16 | 7 | 7 | 15 | 0 | 0 | 16 | 0 | 0 | 143 | 0 | 0 | 7 | 0 | 0 | 149 | 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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