
Surf Forecasts:
Roca Alta surf forecast from 9 Aug 2026:
- Best quality surf: Sunday 16 Aug, 12AM (local time) - 7ft (2.2m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 6AM (local time) - 8ft (2.5m), 11s period, ENE swell with 1,333 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 12AM (local time) - 6ft (1.9m), 9s 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 Sunday (Aug 09) at 12AM. The primary swell is predicted to be 1.9m and 9s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Roca Alta in the next 16 days are 2.5m 11s and forecast to arrive on Saturday (Aug 15) 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 0.5m 3s period and expected on Friday (Aug 14) at 9AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 9th Aug) | 6ft (1.9m) 9s |
| Best Surf | 12AM (Sun 16th Aug) | 7ft (2.2m) 10s |
| Most Powerful | 6AM (Sat 15th Aug) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Roca Alta over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s coming for Roca Alta. It’s a bit of a mixed bag over the next couple of weeks, but there’s definitely some fun to be had.
We’ve got a slow start, but things start to pick up quick. The first real call is for Sunday morning, the 9th. It’s looking clean, with a glassy surface and a bump in the swell. We’re looking at chest to head-high waves, around 6.2ft, with a 10-second period and that energy is ticking over at 665. That’s a solid, moderate push. The wind is light and offshore, so it should be holding up well. That’s your first proper look.
The next standout is Monday morning, the 10th. Again, it’s glassy with a light offshore wind. The swell is a touch smaller, 5.6ft, but the period is still a solid 10 seconds and the energy is at 563. It's going to be clean and fun, a bit more of the same good stuff.
The pattern holds through the week, with mornings generally offering the best conditions. The swell stays in that 5ft to 5.9ft range, with the ENE direction and a 9-10 second period. The energy is moderate, ticking along in the 350-650 range. It’s not going to be huge, but the light winds and clean mornings will make it contestable.
Then, we get to the real standout of the whole period. It starts building on Saturday the 15th, with the swell jumping to 8.2ft and the energy jumping to a strong 1283. The wind is a bit messy in the morning, but the afternoon cleans up nicely with a cross-off breeze. That’s when things get proper.
But the real jewel in the crown is Sunday morning, the 16th. We’ve got a solid 7.5ft of swell, a 10-second period, and the energy is up at 1088. It’s going to be powerful. The wind is light and offshore, leaving it glassy. This is the pick of the bunch. Then Monday the 17th keeps the size right up there at 8.2ft, with a NE direction and a strong 1377 energy reading. The morning is glassy again. This is serious, expert-level surf. This is the big push.
After that, the swell starts to fade and the winds get a bit more funky as we head into the following week. Tuesday the 18th is okay, but the wind goes onshore in the afternoon. From Wednesday the 19th onward, it’s a steep drop-off. The swell gets smaller, the periods shorten, and the wind turns more cross-onshore and choppy. It’s a proper fade-out, and by the 20th, 21st, and into the 22nd and 23rd, it’s looking pretty poor. There’s a bit of life early on Saturday the 22nd with some glassy conditions and a small 4.3ft swell, but it’s not the same.
So, overall: the first standout is definitely the Sunday the 16th to Monday the 17th window. That’s the big, clean, powerful swell we’ve been waiting for. It’s for experienced surfers only, as the size is well over 8ft. The second pick would be the clean mornings of the 9th and 10th, which are a much more manageable and friendly size.
Don’t forget, this is a reef break, so it’s a better bet for this long-period groundswell than a beach break. Crowds are possible, so get out there early.
That’s the picture from here. Keep it salty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sat afternoon. Warm (max 29°C on Sun morning, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 31mm), heaviest during Tue night. Warm (max 29°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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) | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 |
Wave Graph | ||||||||||||||||||||
377 | 614 | 665 | 455 | 455 | 563 | 459 | 364 | 389 | 354 | 354 | 635 | 609 | 596 | 635 | 422 | 362 | 422 | 535 | 849 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | on | cross-off | glassy | on | cross-off | cross-on | on | glassy | glassy | on | cross-off | cross | cross-on | cross-off | cross | cross-on | cross |
High Tide | 7:59PM0.46m | 8:43AM0.02m | 8:48PM0.45m | 9:47AM0.03m | 9:39PM0.44m | 10:59AM0.05m | 10:33PM0.40m | 12:16PM0.08m | 11:30PM0.35m | 1:27PM0.12m | 00:32AM0.30m | 2:26PM0.18m | 1:40AM0.24m | |||||||
Low Tide | 4:03AM-0.07m | 12:51PM-0.04m | 4:54AM-0.07m | 1:43PM-0.02m | 5:45AM-0.07m | 2:45PM0.01m | 6:33AM-0.06m | 4:03PM0.04m | 7:17AM-0.05m | 5:44PM0.07m | 7:58AM-0.04m | 7:37PM0.08m | ||||||||
— | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | |
5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:51 | — | — | 5:51 | — | — | 5:51 | — | — | 5:50 | — | |
mm | 3 | 3 | — | — | 1 | 1 | — | — | — | 2 | 10 | — | 1 | 5 | 1 | 2 | 8 | 2 | 3 | 9 |
Temp °C | 28 | 26 | 29 | 28 | 26 | 28 | 28 | 26 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 27 |
Feels °C | 32 | 30 | 31 | 31 | 30 | 31 | 32 | 30 | 32 | 33 | 32 | 32 | 33 | 32 | 32 | 32 | 31 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 |
377 | 614 | 665 | 455 | 455 | 563 | 459 | 364 | 389 | 354 | 354 | 635 | 609 | 596 | 635 | 422 | 362 | 422 | 535 | 849 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 3 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 114 | 0 | 0 | 178 | 0 | 0 | 303 | 0 | 22 | 307 | 0 | 0 | 114 | 0 | 13 | 22 | 0 | 13 | 114 | 2 |
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)
Latest Updates
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.











