
Surf Forecasts:
Roca Alta surf forecast from 6 Aug 2026:
- Best quality surf: Thursday 6 Aug, 3AM (local time) - 6ft (1.8m), 9s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 9AM (local time) - 6.5ft (2.0m), 10s period, ENE swell with 778 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 3AM (local time) - 6ft (1.8m), 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 Thursday (Aug 06) at 3AM. The primary swell is predicted to be 1.8m 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 2.0m 10s and forecast to arrive on Sunday (Aug 09) at 9AM. 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+) | 3AM (Thu 6th Aug) | 6ft (1.8m) 9s |
| Best Surf | 3AM (Thu 6th Aug) | 6ft (1.8m) 9s |
| Most Powerful | 9AM (Sun 9th Aug) | 6.5ft (2.0m) 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’s coming our way for Roca Alta over the next couple of weeks. It’s a bit of a slow starter, but there’s a serious pulse of energy on the horizon if you’ve got the patience and the skills.
The first few days are pretty average. We’ve got some swell, around 5ft to 6ft from the ENE, but the wind is all over the shop, mostly onshore or cross-on, and that storm risk is hanging around. The water’s sitting at 84°, which is pretty much bang on average for this time of year, so no surprises there. The wave energy is moderate, with readings around 362 to 486 (combined energy of all swells directed here). Not a write-off, but definitely not worth rushing out for.
The first real glimmer of hope comes on Saturday, the 8th of August. Saturday afternoon the wind drops to glassy, and we get a clean 6ft from the ENE (combined energy of all swells directed here 449). That’s a nice session for a sunset paddle.
But the standout window? That’s the morning of Sunday, the 9th of August. This is the pick of the first week. Glassy conditions, 7ft of ENE swell, and a period of 10 seconds. The combined energy jumps to 778 (combined energy of all swells directed here). The waves will have real shape and power, and with zero wind, it’s going to be a dream. This is a proper session, no question.
The middle of the week gets a bit messy again with cross-onshore winds, but the energy stays in the water. The real fireworks start showing up for the second week. On Saturday morning, the 15th of August, we’ve got a solid 8ft from the ENE, a period of 10 seconds, and a light cross-offshore wind from the WSW. The combined energy hits 1022 (combined energy of all swells directed here). This is a powerful, clean swell, but at 8ft, it’s pushing into expert territory. The reef will be firing, but it’s not one for the beginners.
Then, on Sunday morning, the 16th of August, the swell jumps to 10ft with a period of 11 seconds and a combined energy of 1733 (combined energy of all swells directed here). That’s a serious amount of water moving around. The wind is cross-on, but the sheer size and power will be something to see. Only for the very experienced.
The absolute best on offer, though, is Monday morning, the 17th of August. Glassy conditions, 8ft of ENE groundswell with a 10-second period, and the combined energy is a massive 1358 (combined energy of all swells directed here). This is a big, clean, powerful swell with perfect conditions. It’s a solid 8ft, so again, this is strictly for the experts. The reef is going to be handling that energy beautifully, and the long period will mean long, clean lines, but also longer waits between sets.
After that, the energy drops off quickly. By Wednesday, the 19th of August, we’re back to small, weak, and choppy. The run of good surf is over.
So, to wrap it up: the first week is a bit of a grind, but Sunday morning the 9th is a beauty. The real gold is the second week, with Saturday the 15th, and especially Monday the 17th morning being the absolute standouts. These are big, powerful swells though – this is a reef break, and it’s for advanced surfers only. If you’re not confident, give it a miss.
Rusty.
Short Range ForecastHeavy rain (total 55mm), heaviest during Wed night. Warm (max 28°C on Wed afternoon, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Mon afternoon. Warm (max 29°C on Tue morning, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph | ||||||||||||||||||||
362 | 430 | 486 | 430 | 360 | 207 | 207 | 182 | 286 | 449 | 486 | 778 | 559 | 435 | 563 | 459 | 368 | 398 | 354 | 475 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | cross-on | cross | cross | cross-on | glassy | on | glassy | cross-off | glassy | cross-on | cross-off | cross-on | on | cross | glassy | cross-on | cross-off |
High Tide | 5:47PM0.37m | 5:57AM0.06m | 6:27PM0.41m | 6:51AM0.04m | 7:11PM0.44m | 7:45AM0.03m | 7:59PM0.46m | 8:43AM0.02m | 8:48PM0.45m | 9:47AM0.03m | 9:39PM0.44m | 10:59AM0.05m | 10:33PM0.40m | |||||||
Low Tide | 1:29AM-0.02m | 10:44AM-0.03m | 2:21AM-0.04m | 11:22AM-0.04m | 3:12AM-0.06m | 12:04PM-0.04m | 4:03AM-0.07m | 12:51PM-0.04m | 4:54AM-0.07m | 1:43PM-0.02m | 5:45AM-0.07m | 2:45PM0.01m | ||||||||
— | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | |
5:53 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:51 | — | |
mm | 8 | 20 | 3 | 4 | 5 | 4 | 1 | 4 | 6 | 3 | 6 | — | — | — | — | 11 | 1 | — | — | 1 |
Temp °C | 28 | 27 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 25 | 25 | 27 | 28 | 26 | 28 | 27 | 25 | 29 | 29 | 27 |
Feels °C | 32 | 30 | 30 | 29 | 29 | 30 | 32 | 31 | 31 | 29 | 28 | 31 | 31 | 30 | 30 | 30 | 28 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 |
362 | 430 | 486 | 430 | 360 | 207 | 207 | 182 | 286 | 449 | 486 | 778 | 559 | 435 | 563 | 459 | 368 | 398 | 354 | 475 | |
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) | 22 | 123 | 22 | 22 | 13 | 22 | 22 | 0 | 13 | 0 | 0 | 0 | 52 | 0 | 22 | 22 | 10 | 0 | 130 | 0 |
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.











