Surf Forecasts:
Roca Alta surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 3PM (local time) - 7.5ft (2.3m), 10s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 13 Sep, 12PM (local time) - 7.5ft (2.3m), 10s period, ENE swell with 1,001 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 9PM (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 (Sep 11) at 9PM. 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 2.3m 10s and forecast to arrive on Sunday (Sep 13) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Saturday (Sep 12) at 6AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 11th Sep) | 4.5ft (1.4m) 8s |
| Best Surf | 3PM (Sun 13th Sep) | 7.5ft (2.3m) 10s |
| Most Powerful | 12PM (Sun 13th Sep) | 7.5ft (2.3m) 10s |
Table - best surf conditions forecast for Roca Alta over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what Roca Alta is serving up over the next couple of weeks.
Right off the bat, the water is sitting at a warm 84°, which is about average for this time of year – nothing crazy there.
We’re looking at a bit of a slow start. The first real window to get excited about kicks off on Friday the 11th, but it’s a morning-only affair. We’ve got a glassy 5ft ENE swell rolling in with a period of 9 seconds and moderate wave energy (354). The wind is light out of the WNW, making for clean conditions. It’s a small, manageable size for most, but it’s the cleanest we’ll see for a few days.
After that, things get a bit messy. Saturday the 12th and most of Sunday the 13th are plagued by cross-onshore winds, making the surf choppy and uninviting. However, hold onto your board shorts for Sunday afternoon. The wind goes dead calm – glassy as a mirror – and that ENE swell bumps up to a solid 8ft with a 10-second period and strong wave energy (981). That’s the standout of the whole run. It’s pushing into the “too big for beginners” territory, but for anyone with a bit of experience, that’s going to be a proper session. The crowd situation can be a factor here sometimes, so be ready to share if it’s firing.
Monday the 14th still has some life in it. The morning is a bit mixed with a cross-shore wind on a 6ft swell, but Monday afternoon turns glassy again with a 6ft ENE swell and 9-second period. Good, clean fun.
From Tuesday the 15th onwards, the quality drops off. The winds turn messy or onshore, and the swell starts to back off. We hit a bit of a lull through the middle of the week.
There’s a little flicker of hope on Sunday the 20th. The morning shows a glassy 4ft swell from the ENE with an 8-second period. It’s small and a bit weak (222), but it’s clean. By Monday the 21st, the swell is down to 3ft with the same glassy conditions – surfable, but very ordinary.
After that, it’s a long, slow fade. From Tuesday the 22nd all the way through to Saturday the 26th, the swell drops below 3ft and the energy is weak. The winds are mostly onshore or cross-onshore, leaving us with poor conditions and tiny, unappealing waves. It’s a solid blank run for the second week.
So, the clear winner here is Sunday the 13th afternoon at Roca Alta. Get on it if you can.
Rusty.
Short Range ForecastHeavy rain (total 39mm), heaviest during Sun afternoon. Warm (max 29°C on Sat morning, min 24°C on Sun afternoon). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Tue night. Warm (max 28°C on Mon morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | NE 9 | ENE 9 | NE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 354 | 300 | 230 | 217 | 322 | 486 | 855 | 981 | 815 | 697 | 460 | 380 | 362 | 309 | 235 | 398 | 360 | 316 | 385 | 326 | 255 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross-on | cross-on | cross | cross-on | glassy | cross-off | cross | glassy | cross | cross-on | on | off | cross | cross-on | cross | cross | cross-on | cross-off |
High Tide | 12:35PM0.22m | 00:40AM0.20m | 1:30PM0.26m | 2:08AM0.16m | 2:19PM0.29m | 3:33AM0.14m | 3:05PM0.32m | 4:44AM0.13m | 3:47PM0.34m | 5:38AM0.13m | 4:28PM0.35m | 6:20AM0.12m | 5:07PM0.35m | ||||||||
Low Tide | 6:48PM0.06m | 6:49AM0.05m | 8:25PM0.04m | 7:29AM0.06m | 9:42PM0.01m | 8:07AM0.08m | 10:42PM-0.02m | 8:46AM0.09m | 11:31PM-0.03m | 9:24AM0.09m | 00:14AM-0.04m | 9:59AM0.09m | 00:54AM-0.03m | ||||||||
 |  |  | | | | | |  | | | | | |  |  | | |  | | | |
 | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — |
 | — | 5:35 | — | — | 5:34 | — | — | 5:34 | — | — | 5:32 | — | — | 5:31 | — | — | 5:31 | — | — | 5:30 | — |
mm | 4 | — | 2 | 1 | — | 5 | 10 | 16 | 1 | — | — | 3 | 4 | 8 | 23 | 1 | — | 1 | — | 10 | 14 |
Temp °C | 26 | 27 | 26 | 29 | 29 | 27 | 27 | 25 | 25 | 28 | 28 | 26 | 27 | 26 | 25 | 26 | 27 | 26 | 29 | 28 | 25 |
Feels °C | 30 | 31 | 30 | 32 | 32 | 31 | 30 | 30 | 29 | 31 | 32 | 29 | 30 | 30 | 29 | 30 | 31 | 29 | 31 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | NE 9 | ENE 9 | NE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 |
| kJ | 354 | 300 | 230 | 217 | 322 | 486 | 855 | 981 | 815 | 697 | 460 | 380 | 362 | 309 | 235 | 398 | 360 | 316 | 385 | 326 | 255 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WNW 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 22 | 0 | 22 | 22 | 3 | 22 | 0 | 0 | 10 | 0 | 10 | 22 | 22 | 0 | 10 | 22 | 10 | 22 | 22 | 0 |
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