Surf Forecasts:
Ferrugem surf forecast from 17 Aug 2026:
- Best quality surf: Sunday 23 Aug, 3AM (local time) - 7ft (2.2m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 3PM (local time) - 10ft (3.0m), 12s period, S swell with 2,541 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 9PM (local time) - 3ft (0.9m), 8s period with ENE 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 Wednesday (Aug 19) at 9PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ferrugem in the next 16 days are 3.0m 12s and forecast to arrive on Monday (Aug 24) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Tuesday (Aug 18) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 19th Aug) | 3ft (0.9m) 8s |
| Best Surf | 3AM (Sun 23rd Aug) | 7ft (2.2m) 9s |
| Most Powerful | 3PM (Mon 24th Aug) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Ferrugem over the next 16 days.
The Lowdown
G'day, Rusty here. Let's get stuck into what's on the menu for the next couple of weeks. We've got a bit of a slow start, but there's some real gold waiting if you're patient.
The first few days are a bit of a write-off, with weak, short-period windswell and average winds. But hold tight, because the real action fires up from Sunday the 23rd onwards. The standout period is the end of August and the very start of September, with a great mix of size, clean conditions, and proper groundswell.
Let's start with the early shift. Monday the 17th and Tuesday the 18th offer some clean, cross-off waves at Ferrugem, with swell around 5ft to 6ft from the ENE, but the period is a short 8 seconds, so it's a bit lumpy and weak. Tuesday afternoon is the pick of this early block, with a 6ft NE swell and light winds, giving you clean, rideable waves. The combined energy is moderate (751).
After that, we hit a flat patch from Wednesday the 19th through to Saturday the 22nd. There's just nothing worth paddling out for – small, onshore, and messy. That's a solid four-day gap.
Now, Sunday the 23rd is where things get interesting. The morning is a treat: glassy conditions, zero wind, and a solid 5ft groundswell from the south with a long 11-second period. The combined energy is moderate (610), and the water temp is a normal 66°F, so no surprises there. This is a super clean session, and the south swell direction is a good match for the optimum SE direction. This is a serious contender for the best of the run.
Monday the 24th sees a big jump in size. We're looking at 8ft south swell, also with an 11-second period. That's a lot of power, with combined energy surging to 2623, which is very strong. This is a big, powerful day – only for experienced surfers. The wind is cross-shore and gentle, but that size at a beach break like Ferrugem will be hefty and challenging. Conditions are rideable though.
The next big highlight lands on Tuesday the 25th. The morning is clean with a light offshore from the north, and a 6ft swell from the SSE with a 12-second period. The combined energy is still a strong 978. This is a beautiful, well-shaped wave – clean, solid, and with proper groundswell. The direction is bang on the optimum. Another standout.
From Wednesday the 26th through to the end of the month, we get a mix of smaller, cleaner mornings and some afternoons that get chopped up. There's plenty of knee-to-waist high fun to be had, especially on the mornings of the 27th, 28th, and 29th with light offshore winds and 4ft to 5ft swell from the east-southeast.
For the long-range stuff, look at Monday the 31st of August into Tuesday the 1st of September. Monday afternoon is a massive standout: 7ft from the SSE, a 13-second period, and clean cross-off winds from the west-southwest. The combined energy is a massive 1607. This is excellent, powerful groundswell for experienced surfers. The following morning on Tuesday the 1st of September drops off a little in size and quality with onshore winds, but it’s still worth a look if you're keen.
Best bets: Sunday the 23rd morning for the glassy, clean 5ft south swell, and Tuesday the 25th morning for the clean, 6ft SSE groundswell. For the big guns, Monday the 31st afternoon is the one to circle.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 32°C on Tue afternoon, min 18°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | NE 8 | ENE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 5 | ENE 7 | ENE 7 | S 8 | SSW 10 | S 9 | S 8 | S 8 | S 10 | SSE 11 | SSE 12 |
Wave Graph | |||||||||||||||||||||
344 | 403 | 582 | 280 | 448 | 239 | 149 | 110 | 81 | 83 | 53 | 84 | 86 | 187 | 1194 | 299 | 187 | 529 | 770 | 792 | 928 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | glassy | cross | cross-on | cross | cross | cross-on | cross-off | glassy | on | cross |
High Tide | 3:49PM0.55m | 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 | 11:16AM0.24m | 8:20PM0.22m | 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 | ||||
6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | |
— | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 20 | 30 | 32 | 21 | 21 | 20 | 19 | 25 | 25 | 21 | 20 | 17 | 14 | 15 | 14 | 11 | 15 | 15 | 12 |
Feels °C | 22 | 23 | 19 | 29 | 32 | 21 | 22 | 21 | 22 | 22 | 22 | 23 | 16 | 12 | 10 | 11 | 9 | 8 | 13 | 13 | 9 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | SSE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | S 10 | S 9 | S 8 | S 8 | S 10 | SSE 11 | SSE 12 |
344 | 19 | 360 | 280 | 287 | 239 | 149 | 110 | 81 | 83 | 44 | 84 | 86 | 127 | 652 | 299 | 187 | 239 | 770 | 792 | 928 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SE 9 | SSE 11 | S 10 | S 10 | S 9 | S 4 | S 4 | S 7 | S 6 | S 9 | S 8 | SSW 5 | — | ENE 8 | ENE 8 | ENE 9 | SSE 13 | ENE 8 | NE 8 | ENE 8 |
39 | 3 | 11 | 8 | 2 | 2 | 3 | 1 | 23 | 19 | 38 | 12 | 8 | — | 101 | 64 | 59 | 127 | 26 | 16 | 11 | |
Swell 3 Height (m) Direction Period (s) | E 12 | — | — | SE 9 | SE 8 | E 14 | S 9 | S 8 | S 11 | S 9 | SE 12 | SE 6 | S 8 | — | — | — | SE 15 | ENE 8 | — | — | — |
3 | — | — | 3 | 3 | 4 | 2 | 5 | 9 | 27 | 6 | 1 | 10 | — | — | — | 8 | 40 | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNE 8 | ENE 8 | NE 8 | N 4 | NE 8 | SSW 3 | SSW 4 | SSW 4 | — | NE 3 | NE 5 | — | — | S 8 | SSW 10 | — | — | S 8 | — | — | — |
307 | 403 | 582 | 40 | 448 | 2 | 9 | 3 | — | 2 | 53 | — | — | 187 | 1194 | — | — | 529 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 99 | 109 | 99 | 31 | 8 | 6 | 6 | 16 | 9 | 8 | 18 | 0 | 3 | 79 | 4 | 4 | 30 | 0 | 0 | 12 | 1 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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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.











