Surf Forecasts:
Roca Alta surf forecast from 21 Aug 2026:
- Best quality surf: Friday 21 Aug, 6AM (local time) - 4.5ft (1.4m), 8s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 6AM (local time) - 5.5ft (1.7m), 10s period, ENE swell with 511 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 6AM (local time) - 4.5ft (1.4m), 8s period with ENE swell.
Best Forecast Surf Conditions for Roca Alta this week:
The surf forecast for Roca Alta over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 6AM. The primary swell is predicted to be 1.4m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Roca Alta in the next 16 days are 1.7m 10s and forecast to arrive on Sunday (Aug 23) at 6AM. 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 Thursday (Aug 27) at 9AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 21st Aug) | 4.5ft (1.4m) 8s |
| Best Surf | 6AM (Fri 21st Aug) | 4.5ft (1.4m) 8s |
| Most Powerful | 6AM (Sun 23rd Aug) | 5.5ft (1.7m) 10s |
Table - best surf conditions forecast for Roca Alta over the next 16 days.
The Lowdown
Alright folks, Rusty here again, breaking down Roca Alta for you. This is a shallow reef break meant for advanced surfers only. If you’re not dialed in, stay out.
We kick off the forecast with a quiet start, but Friday morning, August 21st is your first real window. The swell is a clean 5ft coming out of the ENE, with a 9-second period. The wind is glassy – dead calm, mirror-flat conditions. The water temp is a balmy 84°, which is spot-on average for this time of year. The combined energy is moderate at 293, so it’s got enough juice to make the reef work without being a washing machine. This is the session to target.
The next few days are rough with storm risks and messy winds. Look ahead to Monday morning, August 24th. The swell drops a touch to 5ft from the ENE, but the wind goes glassy again. That’s your next clean opportunity. Energy is sitting at 362, a bit more punch but still manageable.
Skip the junk in between. Wednesday morning, August 26th has a clean 5ft ENE swell with a light offshore breeze – worth a paddle out but not the standout.
Sunday morning, August 30th repeats the pattern: 5ft from the ENE, glassy or light offshore wind. The mornings are clearly your best bet.
Now, in the second week, Wednesday morning, September 2nd brings a real pulse. We’re looking at 5ft from the ENE with a 10-second period – that’s proper groundswell. The combined energy jumps to 551, strong stuff. The wind is light cross-shore, so it won’t be glassy, but the power will be there. It’s a long way out, so don’t book your flights yet, but that’s the biggest swell of the run.
Thursday morning, September 3rd also has potential with glassy wind and a 5ft ENE swell. By the 4th, it’s all falling apart.
Overall, it’s not a flat period, but you’ve gotta pick your moments. The glassy mornings on Friday 21st and Monday 24th are your best bets. The surf stays rideable but not epic for most of the run, with a promising but uncertain pulse early September. Stay on it, and you’ll get a few clean ones.
Rusty, signing off.
Short Range ForecastHeavy rain (total 35mm), heaviest during Sat night. Warm (max 29°C on Thu afternoon, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 115mm), heaviest during Tue night. Warm (max 27°C on Sun afternoon, min 23°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | NE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NE 9 | ENE 9 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | NE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 274 | 213 | 293 | 273 | 338 | 424 | 422 | 430 | 490 | 450 | 439 | 362 | 295 | 314 | 346 | 322 | 213 | 346 | 293 | 295 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | glassy | cross-on | cross | cross | cross-on | cross | cross | cross | glassy | glassy | cross-on | cross | cross-on | cross | cross | cross-off | cross | cross |
High Tide | 6:37PM0.36m | 7:40AM0.08m | 7:13PM0.36m | 8:20AM0.07m | 7:50PM0.36m | 9:01AM0.05m | 8:26PM0.35m | 9:48AM0.05m | 9:02PM0.34m | 10:49AM0.05m | 9:40PM0.32m | 12:10PM0.06m | 10:20PM0.30m | |||||||
Low Tide | 2:23AM-0.03m | 11:40AM0.03m | 3:10AM-0.02m | 12:02PM0.03m | 3:57AM-0.02m | 12:21PM0.03m | 4:46AM-0.01m | 12:39PM0.04m | 5:32AM-0.01m | 12:56PM0.05m | 6:14AM0.00m | 1:18PM0.06m | ||||||||
 |  |  | | | | |  | | | | | |  | | | |  |  | | |
 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — |
 | 5:46 | — | — | 5:46 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:44 | — |
mm | — | 7 | 1 | 1 | 5 | 3 | 4 | 9 | 5 | 8 | 16 | 3 | 5 | 9 | 7 | 5 | 46 | 16 | 3 | 7 |
Temp °C | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 26 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 25 | 25 | 24 | 25 | 25 |
Feels °C | 33 | 32 | 32 | 32 | 31 | 31 | 31 | 29 | 28 | 29 | 29 | 31 | 30 | 28 | 31 | 27 | 27 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | NE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NE 9 | ENE 9 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | NE 8 |
| kJ | 274 | 213 | 293 | 273 | 338 | 424 | 422 | 430 | 490 | 450 | 439 | 362 | 295 | 314 | 346 | 322 | 213 | 346 | 293 | 295 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | NW 3 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 114 | 0 | 0 | 22 | 2 | 22 | 22 | 123 | 10 | 123 | 0 | 0 | 22 | 10 | 22 | 22 | 10 | 0 | 10 | 10 |
Best forecast wave conditions in Limon | ||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Roca Alta surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Roca Alta Surf forecast
The above surf forecast table for Roca Alta provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Roca Alta can be found by selecting the local surf guide option on the grey menu. Our Roca Alta 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 (Roca Alta) 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 Roca Alta 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 Limon? If you are looking for accommodation near Roca Alta, camping, hotels and holiday cottages in Limon, consider staying in Puerto Limon which is 1 km (1 miles) away. Other places in and around Limon where you can find information about places to rent, and car hire include Siquirres which is 52 km (32 miles) away, Turrialba, Guapiles and Changuinola.
Nearest