Rosa Surf Break

Lat Long: 28.13° S 48.64° W

Rosa Surf Forecast and Surf Report

Issued: 2 pm 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rosa sea temperature is
18.9°C
0.2° 

Rosa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rosa surf forecast from 24 Aug 2026:

  • Best quality surf: Monday 24 Aug, 9PM (local time) - 7.5ft (2.3m), 13s period, S swell with glassy winds.
  • Most powerful swell: Wednesday 26 Aug, 6AM (local time) - 7.5ft (2.3m), 15s period, SSE swell with 2,242 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 9PM (local time) - 7.5ft (2.3m), 13s period with S 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 (Aug 24) at 9PM. The primary swell is predicted to be 2.3m and 13s period. 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 15s and forecast to arrive on Wednesday (Aug 26) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Aug 31) at 6PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 24th Aug)7.5ft (2.3m) 13s
Best Surf 9PM (Mon 24th Aug)7.5ft (2.3m) 13s
Most Powerful 6AM (Wed 26th Aug)7.5ft (2.3m) 15s

Table - best surf conditions forecast for Rosa over the next 16 days.


The Lowdown

Alright mate, let's break down what Rosa's got cookin' for the next couple of weeks. It's a bit of a mixed bag, honest. There's some serious power in the water, but the wind is gonna be a real headache for most of it, makin' it tough to find truly clean waves.

The week kicks off with a bang, but it's not for the faint-hearted. Monday the 24th morning is the standout. The swell is a hefty 8ft from the South, with a solid 14-second period, pumpin' in with a combined energy of 3029. That's proper groundswell, and the water's sittin' at a normal 66° for this time of year. The wind is a light cross-off from the SW, which will have it lookin' clean. But look, at that size and with that power, this is strictly for experienced surfers only. The afternoon goes downhill quick as the wind swings onshore.

Tuesday and Wednesday see the swell drop a bit, but the wind stays cross or cross-on, leavin' things chopped out. Not worth gettin' excited about. We get a brief glimpse on Thursday the 27th morning with 6ft from the SSE and a long 13-second period, but again that persistent NNE cross-wind just wrecks it.

Friday the 28th is a write-off, with a short-period, weak windswell and poor winds. Saturday the 29th morning shows some promise with a clean 6ft from the ENE, but it's a weak energy swell (461) and the "sometimes" crowd factor could be a nuisance.

Now, here's the real gem in the rough. Monday the 31st morning. The wind goes glassy, dead calm, and the swell is a clean 6ft from the ENE with a 10-second period. That's the morning to get out there. It's an intermediate level, fun-sized wave with perfect conditions. The followin' afternoon stays clean with a cross-off wind too.

Tuesday the 1st of September sees a new pulse of S swell, 8ft with a 9-second period and clean cross-off wind. That's a solid day, but it's a step up in size and power (1377 energy). The Thursday the 3rd of September morning is another beauty for intermediate surfers, with clean 5ft from the SSE and a nice 11-second period.

After that, the bottom drops out. From Friday the 4th of September all the way through to the end of the forecast on the 8th, the quality just ain't there. The winds are mostly onshore and the swell is weak or short-period. There are a few clean days in there, like the 7th and 8th, but the swell is tiny (3ft to 5ft) and the wind is howlin' at 19-22 mph, makin' it poor quality for a paddle board.

So, to sum it up, the best on offer is Monday the 31st morning for that glassy, clean fun, and the Tuesday the 1st of September morning for a bigger, more powerful session. Get on it early before the window closes.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Thu morning, min 11°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 10mm), heaviest on Sun morning. Warm (max 27°C on Fri morning, min 19°C on Thu night). Winds decreasing (fresh winds from the NNE on Thu afternoon, calm by Sat morning).

Mon
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
4
3
0
3
2
0
2
1
0
0
0
0
0
2
1
3
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
S
14
2.1
S
13
1.9
S
12
1.8
S
12
1.3
SSE
16
2.3
SSE
14
2.2
SSE
14
2
SSE
14
1.7
SSE
13
1.4
SSE
13
1.8
NE
7
1.9
NE
8
2.1
ENE
8
1.8
ENE
9
1.7
ENE
9
1.7
ENE
9
1.8
ENE
9
1.6
ENE
9
1.5
ENE
9
1.5
ENE
9
Wave Graph
Metric surfscale
Energy kJ
2507
1497
1100
926
788
2230
1983
1670
965
690
287
438
587
513
454
456
533
406
344
337
Wind (km/h)
15
SSE
0
NW
5
NNE
20
NE
15
N
15
NNE
25
NNE
20
NNE
20
NNE
30
NNE
30
N
30
NNE
20
NE
20
NNE
15
SSW
10
S
15
SSW
10
NNE
10
NE
15
NNE
Wind State
cross-on
glassy
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-off
cross
cross-off
cross-on
cross-on
cross-on
High Tide
00:01AM0.50m
1:43PM0.66m
00:28AM0.58m
1:55PM0.67m
00:57AM0.64m
2:11PM0.67m
1:26AM0.68m
2:29PM0.66m
1:56AM0.71m
2:49PM0.64m
2:29AM0.72m
3:10PM0.61m
Low Tide
7:08PM0.30m
6:51AM0.03m
7:34PM0.27m
7:27AM-0.02m
8:01PM0.25m
8:02AM-0.05m
8:27PM0.24m
8:36AM-0.05m
8:54PM0.23m
9:11AM-0.03m
9:22PM0.23m
9:48AM0.03m
9:51PM0.23m
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
light rain
rain showers
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:33
6:33
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:57
5:57
5:58
5:58
5:59
5:59
 mm
1
2
2
5
2
2
Temp °C
14
12
16
18
14
21
22
17
24
24
19
27
24
20
22
22
19
20
21
20
Feels °C
11
11
14
15
12
18
19
15
21
21
17
24
24
21
25
24
20
22
23
21
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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