Surf Forecasts:
Praia do Porto surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 6AM (local time) - 6ft (1.9m), 14s period, SSE swell with offshore winds.
- Most powerful swell: Friday 14 Aug, 9AM (local time) - 8ft (2.4m), 13s period, SSE swell with 1,834 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 3AM (local time) - 5ft (1.5m), 12s period with S swell.
Best Forecast Surf Conditions for Praia do Porto this week:
The surf forecast for Praia do Porto over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 3AM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 1.1m and 15s. Another secondary swell of 1.0m and 5s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Praia do Porto in the next 16 days are 2.4m 13s and forecast to arrive on Friday (Aug 14) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Tuesday (Aug 18) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 13th Aug) | 5ft (1.5m) 12s |
| Best Surf | 6AM (Thu 13th Aug) | 6ft (1.9m) 14s |
| Most Powerful | 9AM (Fri 14th Aug) | 8ft (2.4m) 13s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright, let's talk waves. Rusty here, checking in on Praia do Porto for the next couple of weeks.
The start is rough, with Wednesday the 12th a write-off thanks to onshore winds and rain. Water temp is 19°, about normal for the season. Nothing to get excited about.
Thursday the 13th is your first proper highlight. Swell comes in from the S at about 7ft with a solid 14-second period – proper groundswell. The energy reading is up at 1598, and the wind is offshore and light out of the SW. It’ll be clean, well-shaped, and good for the experienced guys. Thursday afternoon holds similar, just a bit more breeze but still offshore. That’s the day for the skilled crew.
Friday the 14th the swell bumps to around 8ft (energy hits 2106), but the wind goes cross-onshore and messes up the surface. Marginal at best.
From Saturday the 15th through Monday the 17th it’s pretty poor – onshore winds, short-period slop, not worth changing plans for.
Tuesday the 18th shows a brief cleaner window with offshore SSW wind, but the swell drops to about 5ft with a short 9-second period (energy around 367-405). Better than the junk days, but it’s a small-wave day only.
Wednesday the 19th and Thursday the 20th are back to poor, though Thursday morning goes glassy – no wind out of the NW, but the swell is a weak 6ft with a 7-second period (energy 385). Small and clean, but barely moving. Fun for a log maybe.
Now, Saturday the 22nd – this is the next standout. Swell pushes back up to 7-7ft from the S, period a nice 12 seconds, and energy at 2102. Winds are light, cross-off in the morning and near calm in the afternoon. Clean, punchy, proper surf. Mark it down.
Sunday the 23rd keeps that S swell at 7ft and 12 seconds, and the morning is glassy – ESE wind at just 5 km/h. That’s a prime session, clean and peaky. Energy drops to 1304, but still plenty of push. Afternoon gets onshore so get out early.
Monday the 24th sees a big pulse – 8ft from the SSE with a very long 16-second period (energy 2899). That’s heavy, powerful groundswell. If you’re not expert, stay on the beach. Wind is glassy out of the E at 5 km/h so it will look epic, but only for the best. Long period like that works better on points and reefs; beach breaks can be a bit straight and tough.
Tuesday the 25th still has good S swell around 7ft with a 14-second period, winds cross-off, clean. Solid follow-up.
From Wednesday the 26th onward, the swell fades to 5-6ft, shorter periods, and onshore winds. Quality drops off. The end of the run on Thursday the 27th looks flat and uninteresting.
Final call: Thursday the 13th is your early winner – clean offshore, solid groundswell. The big second window is Saturday the 22nd and Sunday the 23rd morning, with chest-to-head high, clean S swell and glassy conditions. The bigger 8ft pulse on Monday is only for the experts. Best of the lot for the experienced.
Rusty.
Short Range ForecastHeavy rain (total 55mm), heaviest during Thu night. Very mild (max 18°C on Fri night, min 13°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Sun morning. Warm (max 24°C on Mon morning, min 15°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | SSE 12 | SSE 12 | SSE 12 | S 14 | S 13 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 8 |
Wave Graph | |||||||||||||||||||||
1064 | 976 | 992 | 1576 | 1419 | 1485 | 1834 | 1408 | 870 | 456 | 454 | 307 | 338 | 541 | 560 | 612 | 732 | 537 | 388 | 351 | 413 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | off | off | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | on | on | on | on | off | off | off | glassy |
High Tide | 3:06PM0.65m | 2:24AM0.64m | 3:24PM0.65m | 2:58AM0.68m | 3:44PM0.64m | 3:30AM0.69m | 4:05PM0.61m | 4:01AM0.67m | 4:29PM0.58m | 4:36AM0.63m | 4:56PM0.54m | 5:22AM0.56m | 5:34PM0.49m | 00:07AM0.22m | |||||||
Low Tide | 8:27PM0.16m | 8:34AM-0.06m | 8:52PM0.17m | 9:05AM-0.03m | 9:16PM0.18m | 9:35AM0.03m | 9:37PM0.18m | 10:07AM0.10m | 9:54PM0.19m | 10:53AM0.18m | 9:49PM0.20m | 11:51AM0.24m | 9:43PM0.20m | ||||||||
6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | |
— | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | |
mm | 5 | 1 | — | 4 | 7 | 13 | 4 | 3 | 18 | 1 | — | 2 | 4 | 1 | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 16 | 17 | 17 | 17 | 17 | 17 | 18 | 20 | 20 | 19 | 20 | 20 | 19 | 24 | 24 | 21 | 14 | 13 | 14 |
Feels °C | 12 | 15 | 16 | 17 | 16 | 17 | 17 | 17 | 16 | 20 | 19 | 18 | 20 | 20 | 18 | 23 | 24 | 23 | 9 | 8 | 12 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SSE 12 | S 14 | S 13 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | E 8 | E 8 | E 8 | S 10 | S 10 | SSE 10 | SSE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
1064 | 976 | 992 | 1576 | 1419 | 1485 | 1834 | 1408 | 870 | 456 | 454 | 307 | 338 | 78 | 52 | 19 | 22 | 537 | 388 | 351 | 280 | |
Swell 2 Height (m) Direction Period (s) | ENE 7 | ENE 7 | — | NE 5 | NE 5 | NE 6 | — | — | — | — | S 11 | S 11 | S 10 | E 14 | — | SSE 12 | — | S 11 | S 10 | S 10 | — |
5 | 5 | — | 22 | 14 | 11 | — | — | — | — | 297 | 143 | 104 | 15 | — | 14 | — | 20 | 17 | 16 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 8 | — | — | — | — | — | — | — | — | — | — | — | S 8 | — | — | — |
— | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 4 | NE 5 | — | — | — | ESE 7 | ESE 7 | E 7 | E 7 | NNE 4 | NNE 5 | NNE 4 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | SW 3 | SSW 5 | SSW 5 | S 8 |
4 | 11 | 32 | — | — | — | 272 | 240 | 435 | 429 | 31 | 54 | 42 | 541 | 560 | 612 | 732 | 7 | 30 | 62 | 413 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 51 | 2 | 2 | 0 | 0 | 2 | 2 | 2 | 97 | 2 | 2 | 2 | 14 | 2 | 9 | 74 | 2 | 0 | 613 | 0 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Praia do Porto Surf forecast
The above surf forecast table for Praia do Porto provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia do Porto can be found by selecting the local surf guide option on the grey menu. Our Praia do Porto 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 (Praia do Porto) 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 Praia do Porto 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.
Praia do Porto is 2 km (1 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.











