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Rosa Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Rosa surfForecast / Santa Catarina – Sul / Brazil
16 Day Weather and Surf, issued 8 am Thursday 21 May 2026 -03Forecast update in hr min s Forecast update imminent
Rosa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rosa sea temperature is
20.2° C
(Which is 1.3°C colder than average for this time of year)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 Thursday (May 21) at 6PM. The primary swell is predicted to be 3.0m and 14s period. 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 2.5m 14s and forecast to arrive on Friday (May 22) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Tuesday (May 26) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 21st May) | 10ft (3.0m) 14s |
| Best Surf | 6PM (Thu 21st May) | 10ft (3.0m) 14s |
| Most Powerful | 12AM (Fri 22nd May) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Rosa over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Fri night. Very mild (max 16°C on Thu morning, min 12°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Mon night. Warm (max 23°C on Tue morning, min 15°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
S 14 | S 14 | S 14 | S 14 | S 14 | SSE 13 | S 12 | S 12 | S 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 16 | SSE 14 | S 12 | S 12 | SSW 7 | S 11 | S 10 | ESE 7 | |
4228 | 3345 | 3029 | 2534 | 2094 | 1581 | 759 | 625 | 411 | 274 | 218 | 250 | 201 | 229 | 665 | 359 | 216 | 319 | 110 | 104 | 77 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross | off | cross-off | cross | off | glassy | cross | cross-off | off | on | glassy | glassy | on | cross | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 9:34AM0.17m | 5:21PM0.43m | 10:38PM0.64m | 3:38AM0.55m | 6:20PM0.38m | 4:37AM0.53m | 00:00AM0.57m | 5:51AM0.50m | 00:26AM0.53m | 7:26AM0.47m | 00:38AM0.48m | 9:36AM0.48m | 11:44PM0.46m | 11:17AM0.53m | 11:10PM0.49m | ||||||
Low Tide | 12:23PM0.10m | 6:19PM0.42m | 8:41AM0.21m | 1:28PM0.12m | 6:40PM0.38m | 9:19AM0.28m | 2:31PM0.14m | 3:24AM0.45m | 3:29PM0.16m | 4:08AM0.38m | 4:24PM0.17m | 4:51AM0.30m | 5:16PM0.20m | 5:32AM0.22m | 6:05PM0.22m | ||||||
 | |  |  | |  |  |  |  | | | | | | | |  |  | | | | |
 | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 5:29 | — | — | 5:29 | — | — | 5:29 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:27 | — |
— | — | — | — | — | 18 | — | 1 | 3 | — | — | — | — | 1 | 5 | — | 1 | — | — | — | — | |
Temp °C | 16 | 16 | 13 | 16 | 16 | 15 | 15 | 16 | 16 | 20 | 20 | 17 | 21 | 19 | 18 | 23 | 20 | 17 | 20 | 19 | 16 |
12 | 11 | 11 | 14 | 15 | 16 | 15 | 16 | 16 | 21 | 20 | 18 | 22 | 20 | 19 | 23 | 19 | 15 | 16 | 16 | 15 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | S 14 | SSE 13 | S 12 | S 12 | S 11 | E 7 | ENE 7 | SSE 10 | SSE 10 | S 9 | SSE 14 | S 12 | S 12 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
 kJ | 4228 | 3345 | 3029 | 2534 | 2094 | 1581 | 759 | 625 | 411 | 269 | 147 | 250 | 201 | 108 | 665 | 359 | 216 | 34 | 59 | 72 | 76 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 11 | S 10 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | SSE 6 | ENE 6 | S 11 | S 11 | S 10 | S 10 |
| kJ | — | — | — | — | — | — | — | — | — | 274 | 218 | 86 | 60 | 45 | 32 | 25 | 13 | 88 | 110 | 104 | 77 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SE 6 | SE 5 | SSE 18 | SSE 16 | SE 6 | ENE 6 | ESE 6 | E 12 | E 9 | SSW 6 | ENE 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | 31 | 23 | 31 | 229 | 22 | 22 | 8 | 3 | 2 | 10 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | E 5 | ESE 6 | E 6 | E 7 | — | — | — | — | — | — | SW 3 | S 6 | SSW 7 | SSW 6 | SSW 5 | — |
| kJ | — | — | — | — | — | 34 | 131 | 112 | 254 | — | — | — | — | — | — | 3 | 108 | 319 | 40 | 19 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 24 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 12 | 4 | 0 | 24 | 2 | 2 | 2 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rosa surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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