Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
- Forecast
- Maps
- Live
- Weather State
- Spot Information
Rosa Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Rosa surfForecast / Santa Catarina – Sul / Brazil
12 Day Weather and Surf, issued 2 pm Saturday 06 Dec 2025 -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
21.8° C
(Which is 1.5°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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 10) at 3AM. The primary swell is predicted to be 2.2m and 8s period with a secondary swell of 0.6m and 12s. Another secondary swell of 0.6m and 12s 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 12 days are 3.0m 11s and forecast to arrive on Thursday (Dec 11) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Dec 11) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 10th Dec) | 7ft (2.2m) 8s |
| Best Surf | 3PM (Thu 11th Dec) | 10ft (3.0m) 11s |
| Most Powerful | 3PM (Thu 11th Dec) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Rosa over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 25mm), heaviest during Tue morning. Warm (max 29°C on Sun morning, min 20°C on Sat night). Mainly fresh winds. | Days 3-6 Weather Summary Heavy rain (total 26mm), heaviest during Tue afternoon. Warm (max 29°C on Wed morning, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||
Sat 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 163 | 86 | 75 | 115 | 82 | 76 | 120 | 119 | 160 | 192 | 575 | 541 | 403 | 339 | 1004 | 2227 | 1109 | 734 | 506 | 260 | 166 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | off | off | glass | on | cross | cross- off | cross- off | cross- off | glass | ||
High Tide / height (m) | 3:36AM 7:23AM 0.59 0.62 | 1:46PM 0.54 | 3:59AM 8:46AM 0.53 0.60 | 2:25PM 0.58 | 4:27AM 9:52AM 0.47 0.58 | 3:11PM 0.60 | 5:02AM 10:45AM 0.43 0.55 | 4:02PM 0.58 | 9:46PM 0.24 | 5:42AM 11:25AM 0.41 0.52 | 4:59PM 0.55 | 10:34PM 0.30 | 6:32AM 11:54AM 0.40 0.48 | 6:08PM 11:11PM 0.50 0.36 | 7:34AM 0.41 | ||||||||
Low Tide / height (m) | 9:34PM 0.02 | 4:55AM 11:10AM 0.58 0.47 | 10:26PM 0.04 | 5:30AM 11:50AM 0.51 0.51 | 11:21PM 0.06 | 6:12AM 0.45 | 12:30PM 0.52 | 12:19AM 0.10 | 6:57AM 0.40 | 1:13PM 0.50 | 9:24PM 1:17AM 0.24 0.14 | 7:42AM 0.38 | 2:01PM 0.46 | 9:47PM 2:16AM 0.30 0.19 | 8:27AM 0.38 | 2:54PM 0.40 | 10:16PM 0.36 | 3:15AM 9:15AM 0.22 0.40 | |||||
Sat 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||
| Sunrise | - | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:11 | - | - | 5:11 | ||
| Sunset | 7:00 | - | - | 7:00 | - | - | 7:01 | - | - | 7:02 | - | - | 7:02 | - | - | 7:04 | - | - | 7:05 | - | - | ||
 |  | |  | | | |  |  | | | | |  | | | |  |  |  | | |||
Rain (mm) | - | - | - | - | - | - | - | 2 | 23 | 11 | 2 | - | - | - | - | - | - | 13 | 1 | - | - | ||
| Temp. °C | 27 | 21 | 29 | 27 | 22 | 27 | 27 | 23 | 23 | 23 | 22 | 29 | 28 | 22 | 27 | 26 | 22 | 21 | 23 | 21 | 24 | ||
| Feels °C (?) | 25 | 20 | 28 | 26 | 23 | 26 | 26 | 23 | 23 | 24 | 23 | 28 | 27 | 22 | 26 | 25 | 22 | 22 | 25 | 22 | 25 | ||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
5 Reasons Why Costa Rica Is A Surfer (and Non Surfer) Paradise
With or without a surfboard, Costa Rica is a bucket list destination that has shown what a nation is capable of when nature is put first.
Read more
Discover more articles and updates in the Greenroom.
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.
false
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 12 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.
Nearest