Ferrugem Surf Break

Lat Long: 28.08° S 48.63° W

Ferrugem Surf Forecast and Surf Report

Issued: 8 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ferrugem sea temperature is
18.6° C
0.0° 

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


Ferrugem surf forecast from 18 Aug 2026:

  • Best quality surf: Saturday 22 Aug, 6AM (local time) - 6.5ft (2.0m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 12PM (local time) - 8ft (2.4m), 14s period, SSE swell with 2,158 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 9AM (local time) - 6ft (1.8m), 8s period with NE swell.

Best Forecast Surf Conditions for Ferrugem this week:

The surf forecast for Ferrugem over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 9AM. The primary swell is predicted to be 1.8m and 8s period with a secondary swell of 1.4m and 8s. Another secondary swell of 0.2m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Ferrugem in the next 16 days are 2.4m 14s and forecast to arrive on Monday (Aug 24) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (Aug 21) at 12AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 18th Aug)6ft (1.8m) 8s
Best Surf 6AM (Sat 22nd Aug)6.5ft (2.0m) 9s
Most Powerful12PM (Mon 24th Aug)8ft (2.4m) 14s

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


The Lowdown

Alright, let’s get into it.

The next couple of weeks have a bit of a slow start, but there’s some serious size and quality lurking further out. We’re looking at a few days of smaller, trickier conditions before an all-around standout that’s worth circling on the calendar. After that, it’s a mixed bag of fading energy and messy winds.

Ferrugem (Rio de Janeiro) is our main spot here, a very consistent sandbar that’s got good exposure to the south and southeast. To kick things off on Tuesday the 18th, we’ve got a clean 6ft NE windswell pushing through with a light cross-offshore breeze. The energy is moderate (723). It’s surfable, but nothing to write home about.

Wednesday the 19th and Thursday the 20th see the swell drop right off to under 3ft and the wind goes a bit cross-on or stays light. The energy is weak (158 down to 116). It’s pretty flat and junky, so I’d probably find something else to do. We then get a couple of poor days with shifting winds and weak, short-period swell (77 to 130) through Friday the 21st. Not great.

The weekend picks up some size. Saturday the 22nd sees a new, more southerly swell arrive, pushing to 7ft but the period is a short 9 seconds. The morning has that moderate energy (1120) but a cross-shore wind is going to chop it up. It’s a bit of a messy one. Sunday the 23rd keeps that 6ft of south swell, but the period extends slightly to 11 seconds. It’s cleaner in the morning, but still onshore, so it’s going to be pretty lumpy.

Now, here’s the standout.

Monday the 24th is the day. The swell jumps to a solid 8ft from the SSE with a very long 14-second period. The energy is strong (2102). And, the wind is forecast to be glassy in the morning. This is the clean, powerful groundswell you wait for. It’s going to be a serious session with real punch. That’s a lot of water moving, so it’s one for the experienced crew.

The rest of that week and into the next, we see that energy slowly fade. Tuesday the 25th still has some decent 6ft groundswell and a clean cross-offshore wind, but it’s a step down. We’re in the 1000s for energy. After that, it drops back to the 3ft range for a few days, with clean but weak conditions. It’s surfable and tidy, but the juice is gone.

The last few days of August and into the 1st of September look pretty poor. We get some rain, and the wind clocks around to the south and east, which is cross or cross-onshore for this break. There’s a pulse of ENE swell around the 31st, but the period is short and the winds are messy. The energy is moderate (1030), but the quality just isn’t there. By the 1st and 2nd of September, it’s back to small, short-period junk with moderate cross-shore winds. Not worth the paddle. There’s a bit of a flat spell here, so if you’re keen, you’ve got to be patient.

So, to sum it up: get out there early next week. The Monday the 24th is your best bet for real, powerful surf, with the Saturday and Sunday beforehand being a bit of a gamble. After that, it’s a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 33°C on Tue afternoon, min 18°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Fri morning. Warm (max 22°C on Fri morning, min 10°C on Sat night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
3
2
0
0
1
0
0
1
1
0
2
3
0
2
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)
2.1
NE
8
1.8
NE
8
1.8
NE
8
1.3
ENE
8
1.1
ENE
8
0.9
ENE
8
0.8
ENE
8
0.9
ENE
8
1.1
NE
8
0.6
ENE
7
0.9
ENE
7
0.9
ENE
7
2.3
S
9
2
S
9
2
S
9
2.5
S
9
1.9
S
11
1.8
SSE
11
1.9
S
11
Wave Graph
Metric surfscale
Energy kJ
582
448
428
239
149
107
75
83
129
42
66
94
828
635
595
1210
894
836
910
Wind (km/h)
20
N
15
N
15
N
5
WSW
10
S
15
S
5
SE
15
NNE
25
NNE
5
NNW
5
NW
20
SSW
20
SW
15
SW
25
S
15
SW
10
SSW
15
SSE
10
SW
Wind State
cross-off
cross-off
cross-off
glassy
cross-on
cross-on
glassy
cross-off
cross-off
cross-off
off
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross
High Tide
4:12AM0.62m
4:15PM0.54m
4:57AM0.55m
12:02PM0.42m
5:50AM0.48m
12:30PM0.49m
00:33AM0.28m
7:15AM0.41m
12:52PM0.54m
00:32AM0.31m
1:10PM0.58m
7:31PM0.38m
1:24PM0.61m
11:38PM0.43m
Low Tide
8:42AM0.31m
8:52PM0.20m
8:49AM0.34m
1:09PM0.41m
9:25PM0.21m
8:57AM0.38m
2:56PM0.45m
9:57PM0.24m
8:44AM0.40m
5:09PM0.43m
10:27PM0.29m
4:11AM0.22m
6:18PM0.38m
5:19AM0.15m
6:41PM0.33m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:41
6:41
6:39
6:39
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:53
5:53
5:54
5:54
5:55
 mm
1
Temp °C
21
31
33
22
21
20
18
23
24
20
22
20
15
15
14
12
13
13
11
Feels °C
21
30
33
24
21
20
21
21
22
19
19
16
11
11
9
8
10
10
8
  • 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 Ferrugem Surf forecast

The above surf forecast table for Ferrugem provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ferrugem can be found by selecting the local surf guide option on the grey menu. Our Ferrugem 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 (Ferrugem) 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 Ferrugem 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.

Ferrugem is 18 km (11 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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