Surf Forecasts:
Cabo Blanco surf forecast from 27 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★+): Thursday 27 Aug, 10AM (local time) - 1.5ft (0.4m), 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 Thursday (Aug 27) at 10AM. The primary swell is predicted to be 0.4m and 18s period with a secondary swell of 0.9m 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 1.3m 16s and forecast to arrive on Saturday (Aug 29) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Tuesday (Sep 01) at 7AM.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 27th Aug) | 1.5ft (0.4m) 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
G’day, Rusty here. Let’s break down what’s happening in the water. The water temp is 86°F, which is a touch warmer than normal for this time of year, so you’ll be fine in boardies or a light spring suit.
The first few days are flat and boring. Wednesday the 26th is a dud – 0.4m SSW swell, weak energy, and thunderstorms. Thursday the 27th morning has glassy conditions but only 0.4m SW swell – too small. Friday the 28th morning is a tease with 0.5m SW swell and a 20-second period, but it’s just not enough.
Saturday the 29th of August morning is the first real standout. Cabo Blanco is looking at 1.1m SW swell, 16-second period, and glassy south winds. The energy is moderate (688), and the conditions are excellent. The swell direction is spot-on for the optimum SW. Crowds are sometimes a factor, but it’s worth it.
Sunday the 30th morning is another good one – 1.3m SW swell, 14-second period, glassy winds. Strong energy (728) and clean. It’s a close second to Saturday.
Monday the 31st morning is okay with 1.0m SW swell, but nothing special.
Tuesday the 1st of September morning has a 1.6m SW swell, but the period is only 7 seconds – short and choppy. It’s glassy, so it’ll be clean, but the waves will be weak.
The big standout of the second week is Friday the 4th of September morning. Cabo Blanco is firing with 1.1m SW swell, 17-second period, and dead calm conditions. The energy is strong (820), and the glassy surface will make for incredible waves. This is the one to circle.
The rest of the week is mixed. Monday the 7th morning has a 1.3m SSW swell with cross-offshore winds – clean but not perfect. Wednesday the 10th of September morning finishes with 0.9m SW swell, 17-second period, and glassy conditions. Strong energy (745) and a nice way to wrap up.
The best calls are Saturday the 29th of August and Friday the 4th of September. Both have that perfect SW swell, glassy or calm winds, and solid energy. Get after it.
Rusty.
Short Range ForecastHeavy rain (total 43mm), heaviest during Fri afternoon. Warm (max 29°C on Wed afternoon, min 26°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 84mm), heaviest during Mon night. Warm (max 29°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 7 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 20 | SW 20 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SW 7 | SW 7 | SSW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 84 | 81 | 81 | 81 | 140 | 186 | 186 | 595 | 581 | 823 | 733 | 676 | 521 | 368 | 347 | 304 | 245 | 266 | 194 | 180 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | glassy | cross-on | cross | glassy | cross-on | glassy | glassy | on | glassy | glassy | on | glassy | glassy | cross-on | cross | glassy | glassy | glassy |
High Tide | 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 | 6:05AM3.06m | 6:27PM2.80m | ||||||||
Low Tide | 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 | 12:20PM0.28m | 00:29AM0.37m | |||||||
 |  |  | | | | |  |  | | | | | | | | |  |  |  | |
 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:42 | — | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — |
mm | 10 | 5 | — | 2 | 4 | 4 | 10 | 8 | — | 5 | 4 | 1 | 9 | 10 | 1 | 10 | 40 | 4 | — | — |
Temp °C | 29 | 26 | 29 | 29 | 27 | 29 | 29 | 26 | 28 | 28 | 27 | 29 | 28 | 26 | 28 | 28 | 25 | 26 | 27 | 25 |
Feels °C | 34 | 31 | 33 | 33 | 32 | 34 | 33 | 31 | 33 | 31 | 32 | 33 | 31 | 31 | 31 | 32 | 30 | 30 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | S 7 | SSW 13 | SSW 7 | SW 7 | SW 7 | SW 7 |
| kJ | 79 | 59 | 59 | 47 | 47 | 35 | 50 | 595 | 581 | 823 | 733 | 676 | 521 | 368 | 100 | 304 | 211 | 266 | 194 | 109 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SSW 16 | SSW 7 | SSW 7 | SSW 6 | S 6 | WSW 6 | SSW 7 | SSW 7 | SW 13 | W 10 | SW 13 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 84 | 81 | 81 | 81 | 140 | 129 | 181 | 62 | 64 | 66 | 29 | 26 | 69 | 77 | 347 | 9 | 245 | 193 | 190 | 180 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SSW 19 | SW 14 | SW 15 | SSW 12 | SW 20 | SW 20 | S 11 | SW 13 | S 10 | WSW 6 | S 7 | WSW 7 | W 6 | W 6 | SW 20 | W 10 | SW 18 | SW 18 | SW 18 |
| kJ | 22 | 36 | 51 | 76 | 50 | 186 | 186 | 38 | 43 | 18 | 22 | 26 | 35 | 31 | 20 | 15 | 7 | 52 | 83 | 82 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 7 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 200 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 111 | 15 | 0 | 16 | 15 | 0 | 15 | 0 | 0 | 152 | 0 | 0 | 16 | 0 | 0 | 16 | 7 | 0 | 0 | 0 |
Best forecast wave conditions in Golfo Dulce | ||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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