
Surf Forecasts:
Roca Alta surf forecast from 31 Jul 2026:
- Best quality surf: Saturday 1 Aug, 12AM (local time) - 7.5ft (2.3m), 11s period, ENE swell with glassy winds.
- Most powerful swell: Saturday 1 Aug, 3AM (local time) - 8ft (2.4m), 11s period, ENE swell with 1,262 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 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 Thursday (Jul 30) 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 2.4m 11s and forecast to arrive on Saturday (Aug 01) at 3AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 30th Jul) | 4.5ft (1.4m) 8s |
| Best Surf | 12AM (Sat 1st Aug) | 7.5ft (2.3m) 11s |
| Most Powerful | 3AM (Sat 1st Aug) | 8ft (2.4m) 11s |
Table - best surf conditions forecast for Roca Alta over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a long-range look at Roca Alta, and honestly, it’s a story of patience. The first few days are a bit of a write-off, but once that swell settles in, there are some absolute gems waiting for the dedicated crew.
The water’s sitting at a warm 84°, which is about what you’d expect for this time of year, so no surprises there.
The opening window on Thursday the 30th of July is a tease. Thursday morning sees a clean 4ft swell from the ENE with a 9-second period, and the wind is glassy – dead calm. The energy is weak though, only 280. It’s a possibility, but you’d be scratching for a wave. By the afternoon, it’s onshore junk.
Friday the 31st is a complete no-go. The swell jumps a bit, but the wind is all wrong, and the energy is still moderate at best. Skip it.
Then we hit Saturday the 1st of August. This is where it gets interesting. We’ve got a proper pulse of swell coming in at 8ft from the ENE, a 10-second period, and the energy is strong at 1126. But the real kicker? Saturday morning is glassy. Dead flat water. For an advanced reef break like Roca Alta, this is the window. The swell is over 8ft territory, so it’s strictly for the experts – this isn’t a beginner’s game. The wind is offshore (WNW) and light, so it’s going to be clean. This is the standout of the first week. The afternoon goes onshore again, so it’s a morning mission.
Sunday the 2nd is a step down in size and messy with cross-shore winds. Monday and Tuesday look poor with thunderstorms and onshore slop, so there’s a real gap in quality there.
Now, hold on for the second week. Thursday the 6th of August is another cracker. Thursday morning we’ve got 7ft from the ENE, 10-second period, and the energy is solid at 733. The wind is glassy again – light WSW. It’s going to be clean, with good shape. This is a strong, reliable option. Thursday afternoon also holds up with glassy conditions, so there’s a solid session there.
The real standout of the entire forecast, though, is the 9th of August. Sunday morning. We’re looking at 8ft from the ENE, a 10-second period, and the energy is packing a punch at 1241. The wind is glassy, dead calm. For Roca Alta, a reef break that’s exposed to the swell, this is as good as it gets. The direction is perfect, the size is meaty, and the conditions will be pristine. This is the one to circle on the calendar. It’s a bit far out, so keep an eye on it, but it’s promising.
The 10th of August (Monday morning) is also excellent: 7ft, glassy, with a 10-second period and energy over 1000. Another top-tier morning session for the experienced crew.
After that, the pattern holds with solid 7ft+ swell, but the winds get a bit crossy or onshore. The 14th of August (Friday morning) is worth a mention: 7ft, glassy, with energy at 983. Another clean morning.
So, the bottom line: this is a spot for the advanced surfer. The best windows are the mornings of the 1st of August, the 6th of August, and the absolute standout – the morning of the 9th of August. Everything else is a gamble or a flat-out miss. Get on it if you’ve got the skills.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Fri afternoon. Warm (max 29°C on Thu morning, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Mon night. Warm (max 28°C on Mon morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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 10 | ENE 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph | |||||||||||||||||||||
280 | 304 | 329 | 495 | 547 | 1148 | 1126 | 815 | 609 | 495 | 354 | 286 | 197 | 177 | 249 | 362 | 431 | 422 | 415 | 459 | 497 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-off | cross-on | on | glassy | glassy | on | cross | cross | cross-on | cross | cross-on | on | cross | cross | cross-on | cross-off | cross | cross-on | cross |
High Tide | 00:17AM0.28m | 1:03AM0.25m | 4:32PM0.14m | 1:55AM0.20m | 4:26PM0.19m | 2:55AM0.16m | 4:44PM0.25m | 3:58AM0.12m | 5:12PM0.31m | 4:59AM0.09m | 5:47PM0.37m | ||||||||||
Low Tide | 9:06AM-0.03m | 9:16AM-0.02m | 8:03PM0.12m | 9:23AM-0.01m | 10:08PM0.10m | 9:34AM-0.00m | 11:31PM0.06m | 9:50AM-0.01m | 00:34AM0.02m | 10:14AM-0.02m | 1:29AM-0.02m | ||||||||||
5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | |
— | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:53 | — | — | 5:53 | — | — | 5:53 | — | — | 5:53 | — | |
mm | — | — | — | — | 4 | 8 | — | 1 | 1 | — | — | — | — | 1 | 2 | 3 | 2 | 2 | 4 | 3 | 3 |
Temp °C | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 31 | 32 | 31 | 32 | 33 | 32 | 32 | 30 | 30 | 30 | 29 | 30 | 31 | 31 | 32 | 31 | 31 | 29 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 8 | ENE 10 | ENE 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
280 | 304 | 329 | 495 | 547 | 1148 | 1126 | 815 | 609 | 495 | 354 | 286 | 197 | 177 | 249 | 362 | 431 | 422 | 415 | 459 | 497 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 130 | 0 | 22 | 123 | 0 | 0 | 128 | 10 | 10 | 22 | 13 | 22 | 22 | 10 | 13 | 22 | 0 | 22 | 22 | 10 |
Best forecast wave conditions in Limon | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
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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.











