Surf Forecasts:
Roca Alta surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 6PM (local time) - 8ft (2.5m), 10s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 16 Aug, 3AM (local time) - 8ft (2.5m), 11s period, ENE swell with 1,736 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 6PM (local time) - 8ft (2.5m), 10s 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 Saturday (Aug 15) at 6PM. The primary swell is predicted to be 2.5m and 10s 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 Sunday (Aug 16) at 3AM. 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 Saturday (Aug 15) at 9AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 15th Aug) | 8ft (2.5m) 10s |
| Best Surf | 6PM (Sat 15th Aug) | 8ft (2.5m) 10s |
| Most Powerful | 3AM (Sun 16th Aug) | 8ft (2.5m) 11s |
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 cooking for Roca Alta.
The good news is there *is* some real swell on the cards, but you’re gonna need to be picky about timing and conditions. The standout window is definitely Sunday the 16th, and then there’s a few other sessions scattered through the following week that might be worth a look if you’re keen.
The overall pattern kicks off this Saturday the 15th with a bit of a messy vibe. We’ve got a 5.6ft swell from the ENE (459 combined energy), but the wind is cross and there’s some questionable tide and storm activity making it look marginal. Not worth paddling out for. Saturday afternoon sees the swell bumping up to 7.2ft (800 combined energy) and the wind goes onshore – poor, choppy, forget it.
Now, Sunday the 16th morning is where it gets interesting. The swell jumps to a solid 8.2ft from the ENE with 11-second periods and combined energy reading a solid 1436. With light cross-offshore winds and clean conditions, this is the best of the entire forecast. This is proper, punchy reef-break territory, so only for experienced surfers. Think steep take-offs, solid power. The water temp is sitting about average for the time of year, so don't expect a shock when you hit the water.
Sunday afternoon stays excellent. Dropping a touch to 7.5ft (1045 combined energy) but the wind goes glassy. That’s the kind of session where you take off, surf into a wall, and see your own reflection on the face. If you can only surf one day this period, make it Sunday.
Monday the 17th drops back to 5.9ft (528 combined energy) and cross winds creep in. Back to marginal, choppy and messy. The rest of the week stays in the 4.3ft to 5.6ft range with ENE swells, mostly short-period 8 to 9 seconds. Wind and tide are hit and miss, kicking up occasional clean windows but nothing to write home about.
You do get another proper clean look on Saturday the 22nd morning – 5.6ft (533 combined energy), cross-offshore wind, clean. And Sunday the 23rd morning is glassy and clean with 5.6ft ENE swell (485 combined energy) – that’s a solid option. Midweek the 25th and 26th mornings also set up clean with glassy conditions and consistent 4.9ft to 5.2ft ENE pulses.
Looking into the second week, there’s nothing huge. Mostly 4.9ft ENE pulses with short period – manageable but unspectacular. Crowds are *sometimes* an issue at Roca Alta being a known reef, so expect company on the good days.
Bottom line: Sunday the 16th is the one. Everything else is a pick-and-choose game depending on wind.
Short Range ForecastHeavy rain (total 93mm), heaviest during Sat night. Warm (max 27°C on Fri night, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 29mm), heaviest during Tue night. Warm (max 29°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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 9 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | NE 9 | NE 9 | NE 10 | ENE 10 | ENE 10 | NE 9 | NE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 197 | 459 | 800 | 1672 | 1436 | 1045 | 741 | 528 | 418 | 461 | 439 | 421 | 424 | 357 | 258 | 219 | 235 | 322 | 254 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | on | cross-off | cross-off | glassy | cross | cross | cross-on | cross | cross | cross-on | cross | cross-off | cross | cross-off | cross | cross-on | cross |
High Tide | 1:40AM0.24m | 3:17PM0.23m | 2:52AM0.19m | 4:01PM0.27m | 4:03AM0.16m | 4:42PM0.31m | 5:09AM0.13m | 5:22PM0.33m | 6:06AM0.11m | 5:59PM0.35m | 6:56AM0.09m | 6:37PM0.36m | |||||||
Low Tide | 8:37AM-0.02m | 9:20PM0.06m | 9:12AM-0.01m | 10:43PM0.03m | 9:46AM0.01m | 11:50PM0.00m | 10:18AM0.02m | 00:46AM-0.02m | 10:47AM0.03m | 1:36AM-0.03m | 11:15AM0.03m | 2:23AM-0.03m | |||||||
 |  | |  |  |  |  |  |  |  | | | |  | | | | | | |
 | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | — | 5:50 | — | — | 5:49 | — | — | 5:49 | — | — | 5:47 | — | — | 5:47 | — | — | 5:46 | — |
mm | 7 | 6 | 13 | 42 | 17 | 1 | — | — | 7 | 1 | — | 5 | 14 | — | — | 6 | 1 | 2 | 3 |
Temp °C | 27 | 26 | 26 | 24 | 25 | 26 | 25 | 26 | 26 | 25 | 29 | 28 | 25 | 27 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 32 | 29 | 30 | 28 | 29 | 30 | 28 | 28 | 29 | 29 | 31 | 30 | 28 | 30 | 31 | 31 | 31 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 9 | ENE 9 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | NE 9 | NE 9 | NE 10 | ENE 10 | ENE 10 | NE 9 | NE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 197 | 459 | 800 | 1672 | 1436 | 1045 | 741 | 528 | 418 | 461 | 439 | 421 | 424 | 357 | 258 | 219 | 235 | 322 | 254 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 3 | — | — | — | — | WNW 3 | — | — | — | W 3 | — | — | — | — | — | — | — | — |
| kJ | — | 5 | — | — | — | — | 3 | — | — | — | 1 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 10 | 128 | 0 | 0 | 0 | 10 | 10 | 22 | 10 | 10 | 22 | 10 | 0 | 13 | 0 | 10 | 22 | 10 |
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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