Surf Forecasts:
Roca Alta surf forecast from 30 Aug 2026:
- Best quality surf: Sunday 30 Aug, 6AM (local time) - 4.5ft (1.3m), 9s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 30 Aug, 6AM (local time) - 4.5ft (1.3m), 9s period, ENE swell with 273 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 6AM (local time) - 4.5ft (1.3m), 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 30) at 6AM. The primary swell is predicted to be 1.3m and 9s 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 1.3m 9s and forecast to arrive on Sunday (Aug 30) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 30th Aug) | 4.5ft (1.3m) 9s |
| Best Surf | 6AM (Sun 30th Aug) | 4.5ft (1.3m) 9s |
| Most Powerful | 6AM (Sun 30th Aug) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Roca Alta over the next 16 days.
The Lowdown
Alright, Rusty here, let’s have a look at what’s cookin’ for Roca Alta.
Right off the bat, the next couple of weeks aren’t gonna have us jumping out of our skins. The energy’s there, but the quality is a real mixed bag. You’ll see that the combined energy readings range from a modest 95 up to a pretty solid 622 (that’s moderate to strong wave energy), but the wind is gonna mess with it for most of the run. The period is sittin’ at 8 to 10 seconds, so nothing special in terms of grunt.
There’s a gap of no real recommendations until Wednesday morning, September 9th. That’s a solid 10 days of average to poor conditions. The water temp anomaly is normal for this time of year, so don’t expect any surprises there. The optimum swell direction for Roca Alta is NE, and the swell is comin’ from ENE, which is close enough to be decent.
The one true standout is Wednesday morning, September 9th. We’ve got 5ft of ENE swell at 9 seconds, but the kicker is the glassy conditions. A little bit of wind from ENE at 3 mph, and the forecast says “expect good surf conditions.” The combined energy is up at 395 (moderate), and with the glassy water, that’s gonna be the cleanest, most user-friendly surf in the whole window. Everything else has cross-onshore or onshore wind messin’ it up. If you can wait that long, that’s your morning.
After that, it gets a bit more interesting but still not perfect. Saturday, September 12th and Sunday, September 13th see the swell building to 5ft and 6ft, with longer periods up to 10 seconds and combined energy hitting 490 and 622. That’s the biggest, strongest swell of the period. But the wind is cross to cross-onshore, so it’s gonna be a little choppy and gutless. For an advanced crew, maybe worth a paddle, but it’s not gonna be a classic. September 13th morning has light cross-shore wind, which is the best of those two days.
Overall, the mid-to-long range is where the real juice is, but it’s not quite comin’ together with perfect wind. Keep your eyes peeled for that Wednesday the 9th – that’s the one to circle on the calendar.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Sun morning. Warm (max 28°C on Sun afternoon, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Wed morning. Warm (max 29°C on Thu morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 8 | ENE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 249 | 273 | 207 | 207 | 217 | 249 | 232 | 169 | 165 | 103 | 70 | 57 | 148 | 113 | 137 | 143 | 171 | 173 | 140 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | cross | cross-on | on | cross-off | cross-off | cross-on | cross-off | cross-on | on | cross-off | glassy | cross-on | cross | cross-on | on | cross |
High Tide | 1:10AM0.18m | 2:29PM0.22m | 2:28AM0.14m | 3:04PM0.27m | 3:41AM0.11m | 3:43PM0.33m | 4:42AM0.09m | 4:25PM0.37m | 5:33AM0.08m | 5:10PM0.41m | 6:18AM0.08m | 5:57PM0.44m | |||||||
Low Tide | 7:40AM0.05m | 9:16PM0.07m | 7:58AM0.05m | 10:28PM0.03m | 8:23AM0.05m | 11:24PM-0.01m | 8:57AM0.04m | 00:14AM-0.04m | 9:38AM0.03m | 1:00AM-0.06m | 10:24AM0.02m | 1:46AM-0.06m | |||||||
 |  | | | |  | |  | |  | | |  |  | | | | | | |
 | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | — | 5:42 | — | — | 5:42 | — | — | 5:40 | — | — | 5:39 | — | — | 5:39 | — | — | 5:38 | — |
mm | 1 | 3 | 3 | 2 | 4 | — | 1 | 1 | — | — | 1 | 1 | — | — | — | 3 | — | — | 1 |
Temp °C | 27 | 27 | 28 | 27 | 28 | 28 | 26 | 26 | 27 | 26 | 28 | 28 | 27 | 29 | 29 | 27 | 29 | 29 | 27 |
Feels °C | 31 | 31 | 32 | 31 | 32 | 31 | 31 | 29 | 29 | 30 | 31 | 31 | 32 | 32 | 32 | 31 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 8 | ENE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 249 | 273 | 207 | 207 | 217 | 249 | 232 | 169 | 165 | 103 | 70 | 57 | 148 | 113 | 137 | 143 | 171 | 173 | 140 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | E 15 | ENE 13 | ENE 11 | ENE 11 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 4 | 17 | 25 | 47 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 0 | 22 | 10 | 22 | 114 | 0 | 0 | 22 | 0 | 10 | 123 | 0 | 0 | 22 | 10 | 22 | 22 | 3 |
Best forecast wave conditions in Limon | |||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.
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