
Surf Forecasts:
Rosa surf forecast from 26 Jul 2026:
- Best quality surf: Monday 27 Jul, 3AM (local time) - 2.5ft (0.8m), 8s period, ESE swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 3AM (local time) - 3.5ft (1.0m), 13s period, S swell with 324 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 3AM (local time) - 2.5ft (0.8m), 8s period with ESE swell.
Best Forecast Surf Conditions for Rosa this week:
The surf forecast for Rosa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 27) at 3AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.8m and 5s. Another secondary swell of 1.1m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rosa in the next 16 days are 1.0m 13s and forecast to arrive on Sunday (Jul 26) 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 1.3m 5s period and expected on Saturday (Aug 01) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 27th Jul) | 2.5ft (0.8m) 8s |
| Best Surf | 3AM (Mon 27th Jul) | 2.5ft (0.8m) 8s |
| Most Powerful | 3AM (Sun 26th Jul) | 3.5ft (1.0m) 13s |
Table - best surf conditions forecast for Rosa over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's coming our way over the next couple of weeks.
Alright, things are pretty quiet to start, but there's a real spark of hope if you're patient. The week ahead is mostly small and average, but the end of the run has some solid potential.
First up, on Sunday the 26th of July at Rosa, we've got a small but cleanish pulse from the south. It's not setting the world on fire with 3-foot of swell at 12 seconds, but the morning is clear with a light north wind, so it's cross-shore. The combined energy is moderate (445), so it's surfable for an intermediate. The water temp is about average for this time of year. Honestly, it's more of a knee-basher to get wet than a standout.
Monday the 27th of July starts off with a glassy morning – dead calm wind, and waves around 2-foot from the south with a 12-second period. The energy is lower (194), but that clean, glassy surface makes it a treat if you're just looking for a few easy, fun rides. It's not punchy, but it's beautiful.
The next real highlight that has me excited is Tuesday the 28th of July. The morning is looking prime. It's glassy with a slight air, and the swell jumps to a clean 5-foot from the NNE. The period is short at 6 seconds, but the energy is moderate (277), and that offshore southwest wind will have it looking clean and lined up. This is the best of the first week.
We get another glimmer on Wednesday the 29th of July morning – glassy conditions again, with a 2-foot south swell (11-second period, 300 energy). Good for a quiet session, but not big.
The rest of that week and into the start of August is pretty ordinary. A lot of onshore and cross-shore winds keep things messy, with poor conditions reported through until the 4th of August. Thursday the 1st of August afternoon does clean up with a cross-offshore wind and 4-foot from the ENE, but the wind is a bit punchy.
The true standout for the whole 16-day window is Wednesday the 5th of August and into Thursday the 6th of August. On Wednesday morning, we get 5-foot from the east with an 8-second period, and the wind is a clean cross-offshore. The combined energy jumps to a strong 362. By the afternoon, it's even cleaner with 6-foot and a light breeze, pushing the energy to 435. This is the pick.
Then Thursday the 6th of August morning is the biggest of the run. Swell hits 7-foot from the ENE (8-second period), and the combined energy is very strong at 1034. The wind is a clean cross-offshore, but the conditions are noted as marginal, probably due to tide. This size is getting too big for beginners, and it's more for the experienced crew. The afternoon drops to 6-foot but the wind picks up.
Friday the 7th of August and the weekend lose that magic, with onshore winds and messy cross-chop taking over. It's not worth rushing out for.
The last little gem arrives on Monday the 10th of August. The morning shows a clean, offshore west wind with a 2-foot south groundswell boasting a very long 13-second period. The combined energy is moderate (309). That long period will give it some punch at a point, but at a beach break, it might be a bit straight. Still, a clean offshore on a small long-period swell is a beautiful way to end the forecast period.
So, for my money, the call is Tuesday the 28th of July morning for the clean, glassy beginner-to-intermediate fun, and Wednesday the 5th of August is the big, clean target for the stronger crew. Thursday the 6th of August morning has the most size if you're an expert, but watch the tide.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Tue afternoon, min 15°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue night. Warm (max 24°C on Wed afternoon, min 15°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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) | S 13 | S 12 | S 11 | ESE 8 | S 12 | S 11 | ESE 8 | NNE 6 | NE 6 | S 11 | NE 7 | S 10 | S 10 | ENE 7 | S 10 | S 8 | S 8 | ENE 7 | S 10 |
Wave Graph | |||||||||||||||||||
340 | 225 | 163 | 105 | 103 | 92 | 61 | 127 | 78 | 87 | 110 | 106 | 92 | 58 | 66 | 88 | 46 | 102 | 136 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | glassy | cross-on | cross | glassy | cross-on | glassy | glassy | cross-on | cross-off | cross-off | cross | cross | cross-on | cross-on | cross |
High Tide | 10:46PM0.43m | 1:51PM0.61m | 11:51PM0.48m | 1:59PM0.63m | 00:32AM0.53m | 2:13PM0.65m | 1:07AM0.59m | 2:32PM0.65m | 1:40AM0.64m | 2:55PM0.65m | 2:13AM0.67m | 3:20PM0.64m | 2:47AM0.69m | ||||||
Low Tide | 6:25AM0.11m | 7:34PM0.32m | 7:10AM0.06m | 8:07PM0.30m | 7:50AM0.02m | 8:35PM0.29m | 8:26AM-0.01m | 9:03PM0.29m | 9:02AM-0.03m | 9:30PM0.29m | 9:37AM-0.02m | 10:00PM0.29m | |||||||
— | 7:00 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | |
— | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 1 | 2 | — | — | — | — |
Temp °C | 16 | 22 | 22 | 18 | 22 | 21 | 19 | 21 | 23 | 19 | 22 | 24 | 18 | 17 | 16 | 17 | 21 | 21 | 17 |
Feels °C | 16 | 22 | 21 | 18 | 23 | 21 | 19 | 23 | 25 | 21 | 24 | 26 | 18 | 17 | 17 | 17 | 20 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | NE 6 | NE 6 | ENE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 8 | S 6 | S 8 | S 10 |
267 | 192 | 125 | 105 | 76 | 75 | 58 | 77 | 78 | 57 | 67 | 59 | 53 | 57 | 47 | 88 | 40 | 72 | 136 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 12 | S 11 | S 11 | S 12 | S 11 | S 11 | ESE 8 | S 12 | S 11 | S 11 | S 10 | S 10 | S 9 | S 10 | ENE 7 | S 8 | S 12 | SSE 6 |
340 | 225 | 163 | 84 | 103 | 92 | 61 | 36 | 67 | 87 | 110 | 106 | 92 | 58 | 66 | 44 | 46 | 65 | 4 | |
Swell 3 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 5 | ENE 7 | SSE 14 | S 11 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSE 6 | ENE 7 | E 8 | — |
22 | 19 | 11 | 10 | 15 | 5 | 40 | 37 | 24 | 24 | 24 | 12 | 13 | 6 | 6 | 4 | 28 | 1 | — | |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | NE 4 | NE 5 | — | NE 5 | NE 5 | NNE 6 | — | — | NE 7 | — | SSW 4 | SSW 5 | S 6 | — | — | ENE 7 | NE 5 |
— | 9 | 20 | 33 | — | 16 | 40 | 127 | — | — | 99 | — | 4 | 17 | 30 | — | — | 102 | 107 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 3 | 0 | 12 | 29 | 0 | 4 | 0 | 0 | 12 | 7 | 0 | 4 | 4 | 4 | 12 | 25 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Rosa Surf forecast
The above surf forecast table for Rosa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rosa can be found by selecting the local surf guide option on the grey menu. Our Rosa 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 (Rosa) 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 Rosa 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.
Rosa is 12 km (7 miles) from Imbituba. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Imbituba. Imbituba has rooms for a wide range of budgets as well as car hire and transport links.










