
Surf Forecasts:
Rosa surf forecast from 11 Jul 2026:
- Best quality surf: Sunday 12 Jul, 9AM (local time) - 4.5ft (1.3m), 12s period, ESE swell with cross-offshore winds.
- Most powerful swell: Tuesday 14 Jul, 6AM (local time) - 7.5ft (2.3m), 10s period, SE swell with 1,049 kJ wave energy.
- Next surfable swell (1★+): Saturday 11 Jul, 12AM (local time) - 3.5ft (1.0m), 14s 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 Saturday (Jul 11) at 12AM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 1.0m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rosa in the next 16 days are 2.3m 10s and forecast to arrive on Tuesday (Jul 14) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Sunday (Jul 12) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 11th Jul) | 3.5ft (1.0m) 14s |
| Best Surf | 9AM (Sun 12th Jul) | 4.5ft (1.3m) 12s |
| Most Powerful | 6AM (Tue 14th Jul) | 7.5ft (2.3m) 10s |
Table - best surf conditions forecast for Rosa over the next 16 days.
Alright, Rusty here. Let's get straight into it.
Alright, so we're looking at a run at Rosa. The water’s sitting at a chilly 60°F, and let me tell ya, that’s a good 6°F colder than what you’d expect for this time of year. It’s a proper shock to the system, so you’ll want a good thick wetsuit. The good news is that after a pretty average start, we’ve got some real gems coming up.
It kicks off on Friday the 10th with a weak 4ft swell from the ESE and a 12-second period. The combined energy is a modest 401, and with a cross-shore wind, it’s just not worth getting wet. Saturday the 11th looks a bit better. The morning is still marginal with a 5ft ESE swell and a 13-second period, but the afternoon is where it’s at. The wind drops to glass – dead calm – and we’ve got a clean 3ft swell. The energy reads 541. That’s a beautiful window for a longboard or a funboard.
The standout session is shaping up for Sunday morning the 12th. We’re looking at a solid 5ft groundswell from the S, with a long 11-second period, pumping out a combined energy of 1298. The wind is a clean cross-offshore breeze. This is classic Rosa and this is the best of the bunch. It’s a proper groundswell, which means better-shaped waves, but with that period, it might wrap a little too straight for the beach breaks. It’s best for the points and reefs if you can find them. This one’s for experienced surfers.
Monday the 13th holds in with a 6ft S swell in the morning, dropping to 6ft in the afternoon, both with a short 8-second period. Winds stay clean cross-off, but the energy is dropping from 927 to 920. Tuesday the 14th gets messy. A 7ft SE swell with a 10-second period shows up, but the wind swings cross-shore in the morning and then goes onshore and choppy in the afternoon. Wednesday and Thursday get worse with onshore winds and messy conditions, so steer clear.
We get another good pulse on Saturday the 18th with a 7ft NE swell that’s packing 1048 of energy, but it’s cursed with onshore winds in the afternoon. The window is very tight. After that, things stay pretty average through to Monday the 20th, but then Monday afternoon is another quiet winner – glassy conditions with a 4ft ENE swell.
The second week looks promising but more uncertain. Tuesday the 21st afternoon is a standout with clean cross-offshore winds and a 5ft ENE swell, the energy at 664. That’s a real good call for a Tuesday session. We get a little more life on the 24th and 25th with some glassy mornings and smaller 3ft to 4ft S swells, perfect for the funboard again, but the energy is much lower, around 364-432. It’s smaller, cleaner fun, but nothing near the power of that Sunday the 12th.
So, if you want my call: Sunday morning the 12th. That 5ft S groundswell with cross-offshore wind and 1298 energy is the one to plan around. Don't sleep on it.
Stay stoked.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Sat afternoon. Very mild (max 17°C on Sat morning, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Thu morning, min 12°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | S 9 | S 8 | S 8 | S 9 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 |
Wave Graph | |||||||||||||||||||||
362 | 700 | 321 | 504 | 543 | 575 | 499 | 579 | 313 | 922 | 1009 | 944 | 876 | 625 | 698 | 735 | 737 | 655 | 469 | 290 | 226 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | glassy | cross-on |
High Tide | 1:06AM0.40m | 1:54PM0.70m | 1:09AM0.38m | 2:46PM0.74m | 00:29AM0.40m | 3:38PM0.74m | 00:41AM0.45m | 4:35PM0.70m | 1:08AM0.52m | 5:42PM0.64m | 1:42AM0.59m | 4:00PM0.54m | 7:06PM0.56m | 3:53PM0.50m | |||||||
Low Tide | 6:06AM0.13m | 7:41PM0.25m | 6:59AM0.06m | 8:33PM0.28m | 7:47AM-0.00m | 9:13PM0.32m | 8:34AM-0.04m | 9:46PM0.37m | 9:19AM-0.06m | 10:15PM0.41m | 10:02AM-0.05m | 5:02PM0.54m | 10:42PM0.43m | 10:44AM0.00m | |||||||
— | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | |
— | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | |
mm | 2 | 6 | 13 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 |
Temp °C | 15 | 17 | 17 | 16 | 16 | 16 | 14 | 15 | 16 | 13 | 17 | 18 | 15 | 19 | 20 | 14 | 21 | 21 | 17 | 21 | 20 |
Feels °C | 15 | 18 | 19 | 15 | 16 | 12 | 11 | 11 | 12 | 11 | 16 | 15 | 13 | 16 | 16 | 11 | 17 | 17 | 14 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | S 8 | SE 9 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 |
242 | 700 | 321 | 504 | 543 | 233 | 222 | 364 | 110 | 922 | 1009 | 944 | 876 | 625 | 698 | 735 | 737 | 655 | 469 | 290 | 226 | |
Swell 2 Height (m) Direction Period (s) | ESE 14 | S 5 | SE 10 | SSE 8 | SSE 19 | ESE 7 | SSE 16 | ESE 11 | ESE 11 | S 13 | S 12 | S 11 | S 11 | S 10 | S 9 | S 13 | S 12 | S 12 | S 13 | S 12 | S 12 |
362 | 8 | 163 | 142 | 69 | 36 | 50 | 207 | 81 | 29 | 25 | 23 | 20 | 8 | 7 | 3 | 3 | 3 | 3 | 3 | 3 | |
Swell 3 Height (m) Direction Period (s) | S 5 | S 13 | S 14 | NE 4 | SSE 19 | SSE 18 | S 12 | SSE 11 | S 14 | — | NE 8 | — | NE 8 | — | — | — | — | — | — | S 18 | S 16 |
7 | 14 | 15 | 6 | 115 | 61 | 3 | 49 | 32 | — | 3 | — | 2 | — | — | — | — | — | — | 6 | 5 | |
Wind waves Height (m) Direction Period (s) | — | — | NNE 4 | NNE 4 | S 11 | S 9 | S 8 | S 8 | S 9 | — | — | NE 8 | NE 4 | NNE 5 | NNE 5 | NNE 5 | NNE 6 | NE 6 | NE 6 | NE 7 | NE 7 |
— | — | 8 | 6 | 396 | 575 | 499 | 579 | 313 | — | — | 3 | 22 | 37 | 87 | 69 | 93 | 252 | 240 | 255 | 223 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2 | 0 | 0 | 0 | 2 | 2 | 2 | 7 | 0 | 0 | 2 | 23 | 29 | 115 | 41 | 41 | 115 | 63 | 0 | 2 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











