
Surf Forecasts:
Praia do Porto surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 9PM (local time) - 7ft (2.2m), 12s period, S swell with offshore winds.
- Most powerful swell: Thursday 17 Sep, 12AM (local time) - 7.5ft (2.3m), 12s period, S swell with 1,444 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 9PM (local time) - 6ft (1.8m), 7s 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 Saturday (Sep 12) at 9PM. The primary swell is predicted to be 1.8m and 7s period with a secondary swell of 0.6m and 8s. Another secondary swell of 0.2m and 11s 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 2.3m 12s and forecast to arrive on Thursday (Sep 17) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Tuesday (Sep 15) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 12th Sep) | 6ft (1.8m) 7s |
| Best Surf | 9PM (Wed 16th Sep) | 7ft (2.2m) 12s |
| Most Powerful | 12AM (Thu 17th Sep) | 7.5ft (2.3m) 12s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright, let’s get into it. We’re looking at Praia do Porto as the only game in town here. It’s a beach and jetty break that breaks fairly often, and it likes swell from the southeast.
Water temp is about 17°, which is a couple of degrees colder than normal for September – you’ll feel that bite.
Starting Saturday the 12th, there’s head-high swell (about 6ft) from the south with a short period, and a 25 km/h offshore wind from the SSW keeping things clean. The combined energy is moderate. Sunday is smaller – around 3ft to 4ft – but still with offshore wind, making for a pleasant paddle.
Monday the 14th brings 4ft south swell with a longer 11-second period and light offshore breezes. Clean. Tuesday the 15th has a 5ft easterly swell early with offshore wind – that’s a nice surprise.
Wednesday the 16th is the first big highlight. The morning delivers 7ft south swell with a solid 1078 combined energy (strong), and offshore winds. This is expert territory at that size. The afternoon gets a bit dicey with cross-off winds.
From Thursday the 17th through Wednesday the 23rd, it’s mostly rough with onshore winds and poor conditions. There’s a little window on the 19th with 3ft and offshore wind, but it’s weak.
The absolute best of the whole forecast is Thursday the 24th. The morning sees 6ft south swell with a 10-second period and a massive 1594 combined energy (very strong). And the wind? Dead glassy – 5 km/h from the north. That’s “excellent for experienced surfers.” The afternoon is 5ft south swell with 11-second period, also glassy. This is your day.
The 25th and 26th get messy with onshore winds again, but Sunday the 27th shows a 6ft east swell with offshore winds in the morning, and a 7ft ENE swell with offshore winds in the afternoon – a solid finish.
Circle Thursday the 24th. That’s the one to call in sick for.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Mon afternoon. Very mild (max 18°C on Tue morning, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue night. Warm (max 21°C on Fri morning, min 13°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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) | S 7 | S 7 | S 7 | S 7 | S 10 | S 11 | S 9 | ENE 8 | E 8 | S 10 | S 7 | S 8 | S 8 | S 12 | S 11 | S 11 | S 10 | S 10 | NE 6 | NE 6 |
Wave Graph | ||||||||||||||||||||
330 | 240 | 109 | 131 | 117 | 282 | 207 | 196 | 349 | 300 | 235 | 520 | 372 | 1444 | 730 | 566 | 353 | 196 | 107 | 83 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | off | off | off | cross-off | off | off | cross-off | off | on | on | cross-on | cross-on | on | off |
High Tide | 3:07PM0.62m | 3:10AM0.68m | 3:28PM0.60m | 3:41AM0.66m | 3:50PM0.57m | 4:12AM0.61m | 4:14PM0.54m | 4:51AM0.55m | 4:42PM0.49m | 5:49AM0.48m | 12:12PM0.33m | 00:36AM0.22m | 6:58AM0.44m | 12:24PM0.37m | 6:45PM0.41m | |||||
Low Tide | 8:44PM0.09m | 9:05AM0.05m | 9:02PM0.09m | 9:26AM0.12m | 9:14PM0.10m | 9:34AM0.19m | 9:14PM0.12m | 9:13AM0.24m | 9:14PM0.15m | 9:04AM0.28m | 12:19PM0.30m | 9:26PM0.18m | 9:08AM0.31m | 1:56PM0.33m | 9:50PM0.23m | |||||
— | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | 1 | 3 | 4 | 6 | 10 | 3 | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 15 | 15 | 14 | 13 | 13 | 14 | 18 | 16 | 15 | 16 | 15 | 14 | 18 | 18 | 14 | 21 | 22 | 19 |
Feels °C | 13 | 13 | 12 | 13 | 13 | 12 | 12 | 14 | 15 | 12 | 12 | 11 | 10 | 12 | 14 | 13 | 10 | 19 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | S 7 | S 7 | SSE 7 | S 11 | S 9 | ENE 8 | E 8 | ENE 8 | E 8 | S 8 | E 8 | S 12 | S 11 | S 11 | S 10 | S 10 | SSE 9 | NE 6 |
65 | 51 | 109 | 104 | 96 | 282 | 207 | 196 | 349 | 270 | 235 | 408 | 66 | 1444 | 730 | 566 | 353 | 196 | 78 | 83 | |
Swell 2 Height (m) Direction Period (s) | E 12 | S 11 | SE 7 | SE 7 | S 10 | SE 8 | SE 7 | SE 8 | SE 9 | SE 8 | S 12 | E 8 | SE 8 | E 8 | E 8 | E 8 | ESE 10 | SE 12 | S 9 | S 9 |
3 | 2 | 65 | 44 | 117 | 79 | 107 | 125 | 107 | 68 | 180 | 138 | 15 | 45 | 18 | 18 | 32 | 77 | 61 | 60 | |
Swell 3 Height (m) Direction Period (s) | — | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 9 | S 8 | S 10 | — | SE 8 | SE 9 | SSE 14 | — | ESE 11 | — | ENE 7 | ESE 10 | SE 12 | SSE 9 |
— | — | 49 | 50 | 50 | 34 | 23 | 140 | 133 | — | 21 | 12 | 37 | — | 12 | — | 5 | 32 | 73 | 55 | |
Wind waves Height (m) Direction Period (s) | S 7 | S 7 | — | S 7 | — | — | — | — | SW 2 | S 10 | S 7 | S 8 | S 8 | — | — | NE 4 | NE 5 | NE 6 | NE 6 | — |
330 | 240 | — | 131 | — | — | — | — | 2 | 300 | 210 | 520 | 372 | — | — | 12 | 43 | 69 | 107 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 13 | 0 | 2 | 295 | 44 | 14 | 2 | 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.










