Rosa Surf Break

Lat Long: 28.13° S 48.64° W

Rosa Surf Forecast and Surf Report

Issued: 2 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rosa sea temperature is
18.7°C
0.1° 

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


Rosa surf forecast from 2 Sep 2026:

  • Best quality surf: Monday 7 Sep, 6AM (local time) - 10ft (3.0m), 9s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 6AM (local time) - 10ft (3.0m), 9s period, SSW swell with 1,374 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 3AM (local time) - 7.5ft (2.3m), 10s period with SSE 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 Wednesday (Sep 02) at 3AM. The primary swell is predicted to be 2.3m and 10s period with a secondary swell of 0.4m and 8s. 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 3.0m 9s and forecast to arrive on Monday (Sep 07) 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 1.4m 6s period and expected on Sunday (Sep 06) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 2nd Sep)7.5ft (2.3m) 10s
Best Surf 6AM (Mon 7th Sep)10ft (3.0m) 9s
Most Powerful 6AM (Mon 7th Sep)10ft (3.0m) 9s

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


The Lowdown

Alright folks, Rusty here. Gotta be straight with you – on the whole, this next stretch for Rosa is a bit of a mixed bag. We’ve got some windows of clean, fun surf, but there are also some solid sessions that get ruined by the wind direction later on. The water is sitting at 66°F, which is pretty average for this time of year, nothing to get excited about.

Right out of the gate on Tuesday the 1st, it’s a no-go. A risk of thunderstorms and a solid 16 mph cross-offshore wind is making for a raw, poor session. Not worth paddling out.

Hold tight though, because the real standout window kicks off early Wednesday the 2nd. The morning is looking clean and clear with a gentle cross-offshore breeze from the SW. We’re looking at a solid 7 ft groundswell out of the SE, with a nice 10-second period. The energy is moderate, sitting at 985, but the wave comment says it all – expect very good surf conditions. This is the best on offer, folks. It’s a bit overhead, so intermediate and above will be having a ball.

The afternoon of the 2nd sees the wind shift to a cross-onshore, making things a bit lumpy, so stick to the morning session.

We get a bit of a lull then. Thursday the 3rd is average with onshore wind, and Friday the 4th sees the swell drop to a weak 2 ft (173 energy). Not much to write home about. Come Saturday the 5th, we get a little pulse back. A light cross-offshore wind is cleaning up a 4 ft swell from the S with an 8-second period. The energy is weak (327), but the conditions are good – a nice, small-wave option for a relaxed session.

Sunday the 6th sees the morning die out completely, but then the afternoon brings a fun 7 ft bump from the S, though it’s choppy with a cross-shore wind.

Now, for the next standout, you’re looking at Monday the 7th morning. It’s going to be a big one. An 8 ft swell from the SSW, 9 seconds, cranking the energy up to 1879 – that’s strong. The wind is a clean cross-offshore. This is big, powerful surf. Over 8 ft is for experts only. If you know what you’re doing, this is a serious session.

We get another good run. Tuesday the 8th morning is clean again with a 6 ft SSE swell and 10-second period. Energy is at 708 – moderate. Expect very good surf conditions. Another winner.

After that, the week gets a bit messy. Wind from the NE and E picks up strong through the 9th, 10th, and 11th. Wednesday the 9th morning has a 6 ft ENE swell but with a poor, short 6-second period and onshore wind. By Thursday the 10th, the swell is a massive, messy 10 ft with 19 mph onshore winds – that is a write-off for surfing. Honestly, that setup looks more interesting for kite surfing than paddle surfing. On Friday the 11th, the swell is even bigger at 10 ft, but the wind and tide are favorable for a moment? No – the file says the surf is too big for this break. Don’t even think about it.

The following week, from the 12th onward, things settle a bit. Saturday the 12th has a raw, rainy morning but a clean 5 ft swell in the afternoon from the ENE. It’s small but clean.

Looking further out to the second week, we’ve got some promising signs. Monday the 14th morning brings a clean 4 ft swell from the S with a very long 13-second period (949 energy) – pure groundswell. It’s clean, but keep in mind that long period stuff like that can be a bit straight at a beach break. It’ll be better if you can find a bank.

Finally, the last real high point is Tuesday the 15th morning. Clear skies, light offshore wind from the SW, and a 6 ft swell from the E with an 8-second period. The energy is moderate (664), and the comment says expect very good surf conditions. That’s a solid call to end the forecast period.

So, to sum it up: Wednesday the 2nd morning is your first absolute standout – clean and solid. Then you’ve got another big, expert-level window on Monday the 7th morning. The rest is a mix of small clean days and some messy, blown-out junk. Keep an eye on that Tuesday the 15th morning for a final clean session.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Warm (max 23°C on Thu morning, min 13°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Fri afternoon. Very mild (max 17°C on Fri afternoon, min 9°C on Sun night). Wind will be generally light.

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
3
2
1
1
0
2
0
0
2
2
2
2
0
1
4
2
2
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
ESE
8
2.3
SSE
9
2.1
SE
10
2.1
SE
11
1.9
SE
11
1.5
SE
11
1.2
SE
11
0.9
SE
11
0.7
SE
10
0.8
ENE
8
1
ENE
8
1.1
S
8
1.1
S
8
1
S
8
0.6
ENE
8
2.2
S
8
2.5
S
10
2.5
SSW
9
1.9
S
10
1.8
S
10
Wave Graph
Metric surfscale
Energy kJ
224
827
916
996
835
505
326
187
106
84
131
152
160
119
51
609
1153
1119
660
696
Wind (km/h)
25
SSW
15
SW
15
SW
15
SSE
15
N
25
N
20
NNE
10
NNW
20
SW
20
S
10
SW
15
SW
15
SSW
10
SW
15
SW
25
S
15
SW
25
SW
25
S
15
WSW
Wind State
cross-off
cross-off
cross-off
cross-on
cross
cross
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
High Tide
3:55PM0.52m
10:23PM0.25m
4:21AM0.61m
4:16PM0.47m
11:17PM0.27m
5:09AM0.54m
4:34PM0.42m
11:46PM0.30m
6:19AM0.45m
00:12AM0.32m
12:31PM0.69m
00:35AM0.35m
1:10PM0.74m
00:51AM0.39m
1:47PM0.76m
00:49AM0.44m
Low Tide
8:38PM0.25m
9:00AM0.38m
12:42PM0.32m
8:31PM0.23m
8:18AM0.43m
2:21PM0.39m
8:45PM0.21m
7:57AM0.44m
9:04PM0.22m
3:27AM0.21m
9:23PM0.26m
4:42AM0.13m
9:19PM0.31m
5:42AM0.05m
7:11PM0.32m
thunderstorm
clear
clear
clear
clear
clear
clear
clear
cloud
light rain
light rain
light rain
cloud
clear
part cloud
cloud
part cloud
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:24
6:24
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
6:01
6:01
6:02
6:02
 mm
1
1
1
1
1
Temp °C
19
16
18
17
14
23
23
17
17
17
15
14
15
14
14
13
13
12
13
12
Feels °C
16
14
16
15
12
21
20
16
15
15
14
12
13
11
9
8
9
6
7
8
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Rosa:

join our community of surf reporters

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.

Nearest locationNearest