Rosa Surf Forecast

/ Santa Catarina – Sul (37 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (28.13° S 48.64° W)

Surf Forecasts:

Rosa surfForecast / Santa Catarina – Sul / Brazil

12 Day Weather and Surf, issued 2 pm Wednesday 03 Sep 2025 -03

Forecast 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 17.7° C
(Which is 1.1°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 Saturday (Sep 06) at 12PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 1.2m and 8s. 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 2.0m 12s and forecast to arrive on Wednesday (Sep 10) at 6AM. Winds are predicted to be cross-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 Thursday (Sep 04) at 9PM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	12PM (Sat 6th Sep)	4.5ft (1.3m) 8s
Best Surf	6PM (Tue 9th Sep)	6ft (1.9m) 9s
Most Powerful	6AM (Wed 10th Sep)	6.5ft (2.0m) 12s

Table - best surf conditions forecast for Rosa over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 25mm), heaviest during Fri night. Warm (max 22°C on Wed afternoon, min 12°C on Fri night). Wind will be generally light.											Days 3-6 Weather Summary Moderate rain (total 13mm), heaviest on Mon night. Warm (max 20°C on Tue morning, min 14°C on Sat afternoon). Wind will be generally light.
	Wed 03		Thursday 04			Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	0	2	2	1	1	2	1	2	2	1	0	1	0	0	3	3	1	4	4
Swell Height Map See all maps
Wave Height (m) & direction (?)	ENE	ENE	NE	ENE	ENE	ENE	S	S	SSE	S	ENE	E	ENE	ENE	ENE	ENE	NE	ENE	ENE	S	S
Period(s) (?)	9	9	9	9	9	9	7	7	8	7	8	7	6	6	7	7	8	9	9	9	12
Wave Graph (?)
Energy (?)	1364	893	1783	583	595	411	425	533	447	364	273	297	271	291	321	464	1187	628	776	1127	1328
Wind (km/h)	NE	NNE	NNE	SSW	SW	WSW	WSW	SSW	SW	SW	WSW	NNE	NNE	NNE	NNE	NNE	N	SSW	SSE	WNW	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross	cross- on	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	glass	cross- on	cross- on	cross	cross	cross	cross	cross- off	cross- on	glass	glass
High Tide / height (m)		12:07AM 0.48		1:27PM 0.71	12:26AM 0.54		1:52PM 0.73	12:48AM 0.60		2:15PM 0.72	1:13AM 0.65		2:34PM 0.69	1:40AM 0.69		2:48PM 0.63	2:10AM 0.71		2:58PM 0.57	2:42AM 0.71
Low Tide / height (m)		6:42PM 0.27	6:17AM 0.03		7:13PM 0.24	6:59AM -0.04		7:45PM 0.23	7:40AM -0.09		8:17PM 0.23	8:19AM -0.10		8:48PM 0.24	8:59AM -0.07		9:17PM 0.25	9:41AM 0.00		9:45PM 0.25	10:26AM 0.11

	Wed 03		Thursday 04			Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09
Sunrise	-	-	6:24	-	-	6:24	-	-	6:22	-	-	6:22	-	-	6:20	-	-	6:18	-	-	6:18
Sunset	6:00	-	-	6:01	-	-	6:01	-	-	6:02	-	-	6:02	-	-	6:02	-	-	6:04	-	-

Rain (mm)	-	-	-	-	4	5	4	11	1	-	-	-	-	-	1	1	11	-	-	-	-
Temp. °C	22	18	21	18	15	13	14	13	12	14	14	16	17	16	18	18	18	20	18	16	19
Feels °C (?)	19	16	19	16	12	10	12	11	9	12	13	14	15	14	17	18	18	19	17	16	18

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Santa Catarina - Sul

Wind Update Still cross-shore at Rosa (moderate winds from the NNE at Florianopolis Airport 52 km from Rosa). 2.6m 9s swell from the ENE to make surfable waves.
2 hours 8 minutes ago Rosa

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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 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.