Rosa Surf Break

Lat Long: 28.13° S 48.64° W

Rosa Surf Forecast and Surf Report

Issued: 8 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Rosa sea temperature is
16.9° C
1.8° 

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


Rosa surf forecast from 19 Jul 2026:

  • Best quality surf: Friday 24 Jul, 12AM (local time) - 7ft (2.1m), 9s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Friday 24 Jul, 12AM (local time) - 7ft (2.1m), 9s period, SSE swell with 700 kJ wave energy.
  • Next surfable swell (1★+): Monday 20 Jul, 9AM (local time) - 7ft (2.1m), 8s period with NE 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 (Jul 20) at 9AM. The primary swell is predicted to be 2.1m and 8s period with a secondary swell of 1.7m and 8s. Another secondary swell of 0.2m 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 16 days are 2.1m 9s and forecast to arrive on Friday (Jul 24) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Jul 23) at 3AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Mon 20th Jul)7ft (2.1m) 8s
Best Surf12AM (Fri 24th Jul)7ft (2.1m) 9s
Most Powerful12AM (Fri 24th Jul)7ft (2.1m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s take a look at what’s coming up for Rosa over the next couple of weeks.

Right off the bat, we’ve got a bit of a messy start. Sunday the 19th is a write-off – the sea’s choppy and conditions are poor. Not worth paddling out. Things start to look up on Monday morning the 20th. The wind is light and offshore, cleaning up a 7 ft NE swell. It’s got a short period of 8 seconds, so it’ll be a bit bumpy, but the wave energy is moderate (894) and the conditions are clean. That’s a good window to get a few.

Tuesday the 21st is the real standout of this first week. Tuesday morning is glassy with a 5 ft ENE swell and moderate energy (350). But Tuesday afternoon is where it’s at: glassy conditions, a 6 ft NE swell, and wave energy ramping up to 733. The water is a bit colder than normal at 62°, about 3° below average, so you’ll want a thicker wetsuit. Wednesday morning the 22nd offers more glassy conditions with a 4 ft ENE swell, but the real magic happens on Thursday the 23rd and Friday the 24th. Thursday has a solid 6 ft to 7 ft swell from the S/SSE, with clean cross-offshore winds and moderate energy (639-704). Friday the 24th is even better – clean, light winds, 6 ft to 6 ft SE swell, and glassy conditions by Friday afternoon. That’s a session you don’t want to miss.

The weekend of the 25th and 26th drops off. Saturday morning is glassy but small (4 ft), and by Sunday afternoon, it’s choppy and messy with a 2 ft S swell. The start of the next week, from the 27th to the 29th, is a real lull – poor conditions, messy wind, and small swell. You’ll be sitting on the beach for a few days.

Now, hold on to your board, because Thursday the 30th of July is the big one. There’s an 8 ft S swell rolling in with a 10-second period, and the wave energy is absolutely pumping at 2308. That’s strong. The wind is light and offshore, resulting in clean, excellent conditions. This is for experienced surfers only – it’ll be too big and powerful for beginners. The swell direction is Southerly, which matches the optimum for Rosa. This is a serious, standout day.

The first of August starts with a clean 5 ft NE swell on Saturday morning, and Sunday the 2nd has glassy, clean conditions with a 4 ft ENE swell. The run finishes on Monday the 3rd with a bit of chop and a 5 ft NE swell, but it’s not the best.

So, my pick for the best on offer is Thursday the 30th of July – that 8 ft S swell with glassy winds is a session for the experienced crew. Friday the 24th is your best bet for a clean, fun day in the first week. Tuesday the 21st afternoon is also a gem.

Stay stoked, and keep an eye on the horizon.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Sun morning, min 18°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Wed morning. Warm (max 20°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
3
1
1
2
3
1
2
0
1
2
2
4
3
3
1
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
NE
8
1.7
NE
8
2.2
NE
8
2.1
NE
8
1.7
NE
8
1.5
ENE
8
1.5
ENE
8
1.7
NE
8
1.3
ENE
8
1.3
ENE
8
1.2
ENE
8
1.2
ENE
8
1.8
S
9
2
SSE
9
2.1
SSE
9
1.8
SE
9
1.7
SE
9
1.3
SE
8
1.1
SE
8
0.9
S
12
0.9
S
13
Wave Graph
Metric surfscale
Energy kJ
492
353
624
528
381
322
287
382
237
223
188
202
471
560
700
492
427
239
138
216
268
Wind (km/h)
15
N
20
NNE
20
N
5
NW
5
E
15
N
5
NNW
0
SE
20
SW
5
W
20
N
20
SSW
25
SW
25
SSW
10
SW
10
SW
5
SSE
10
ENE
5
WSW
10
E
10
NNW
Wind State
cross
cross
cross
cross-off
on
cross
glassy
glassy
cross-off
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
glassy
on
cross-off
High Tide
4:34PM0.48m
10:51PM0.37m
4:30AM0.61m
5:03PM0.49m
11:38PM0.34m
5:20AM0.55m
5:36PM0.48m
00:06AM0.32m
6:20AM0.48m
12:23PM0.43m
6:14PM0.46m
7:50AM0.43m
12:58PM0.49m
7:05PM0.43m
1:24PM0.54m
8:37PM0.41m
1:41PM0.58m
10:46PM0.43m
Low Tide
12:07PM0.16m
8:06PM0.32m
9:37AM0.29m
12:54PM0.25m
8:55PM0.29m
9:28AM0.34m
1:52PM0.33m
9:43PM0.28m
9:39AM0.38m
3:06PM0.38m
10:32PM0.29m
3:17AM0.26m
4:35PM0.40m
11:47PM0.32m
4:29AM0.21m
5:59PM0.38m
5:32AM0.16m
6:55PM0.35m
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
mod rain
light rain
rain showers
part cloud
clear
part cloud
part cloud
light rain
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:03
7:03
7:01
7:01
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:38
5:38
5:39
5:39
5:40
 mm
9
1
1
1
Temp °C
27
27
21
24
22
21
22
22
20
18
20
17
16
16
15
16
16
16
18
18
16
Feels °C
24
25
19
24
22
19
23
24
21
20
19
17
13
13
14
16
15
14
17
16
15
  • Map Icons:
  • Break
  • 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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