Surf Forecasts:
Barrinha surf forecast from 30 Aug 2026:
- Best quality surf: Sunday 6 Sep, 12AM (local time) - 10ft (3.0m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 12AM (local time) - 10ft (3.0m), 9s period, S swell with 1,331 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 9AM (local time) - 7.5ft (2.3m), 8s period with E swell.
Best Forecast Surf Conditions for Barrinha this week:
The surf forecast for Barrinha over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 31) at 9AM. The primary swell is predicted to be 2.3m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Barrinha in the next 16 days are 3.0m 9s and forecast to arrive on Sunday (Sep 06) 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 1.3m 9s period and expected on Thursday (Sep 03) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 31st Aug) | 7.5ft (2.3m) 8s |
| Best Surf | 12AM (Sun 6th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 12AM (Sun 6th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Barrinha over the next 16 days.
The Lowdown
G’day, Rusty here.
We’ve got a bit of a rollercoaster ahead at Barrinha. The next 16 days start quiet, then build into some serious size, but the timing and conditions keep things interesting. Right now, Sunday the 30th is a flat start with tiny 0.7 ft SSE swell – no good for a paddle, just a glassy morning for a swim. The afternoon picks up a little to 4 ft but onshore wind and a short 8-second period make it a write-off. Monday the 31st is where it starts to get real: early glassy conditions with 8 ft of east swell (8-second period) and a combined energy of 652 (moderate). The wind is calm, so the morning session will have some decent, clean lines despite the short period – good for intermediates, but the heavy rain might keep the crowd away. Afternoon turns a bit cross-onshore, so grab it early.
Tuesday, 1 September, is a standout. Morning glass again with clean 6 ft swell from the ESE (8-second period) and combined energy of 448 (moderate). Winds are light offshore from the west, so expect smooth, rippable faces. This is the pick of the first week - solid shoulder-high surf with no crowds to worry about. By afternoon, a risk of thunderstorms and cross-off wind, so the window is the morning.
Barrinha is a fairly exposed beach break that works best with SE swell, and that’s what we’ve got coming. Water temperature is about average for this time of year, so no surprises there.
From Wednesday the 2nd through the end of the first week, the swell hangs around 5 ft to 7 ft but the wind is moderate and cross-off or cross-on, keeping the quality average to poor. By Friday the 4th, the energy drops right off – only 2 ft to 3 ft with a longer 10-second period but very weak energy (77 to 185). Surfable but ordinary.
Now, here’s where it gets interesting: the second week. From Sunday the 6th of September onward, we see a massive pulse of south swell building. Sunday morning shows 10 ft S swell with a long 11-second period and combined energy of 2474 (strong). The wind is cross-off and clean, but that wave height is too big for Barrinha – this is expert territory only, and even then, the break gets overwhelmed. Sunday afternoon and Monday the 7th push up to 12 ft to 12 ft with periods of 13 and 14 seconds, and energy hitting 3887 and 4467 – very strong. The wind is offshore on Monday morning (WSW 6 mph), making it glassy, but the swell is simply too large (over 8 ft) for this spot. For pros only, and be ready for a beating.
Monday afternoon the swell shifts to SSE with a massive 16-second period and energy of 6008 – extremely strong. That long period groundswell will make Barrinha, a beach break, sectiony and straight – better suited to a point or reef. Tuesday the 8th still has 10 ft to 8 ft with long periods, but cross-onshore wind and chop spoil the fun.
After that, the swell fades through the rest of the week. From Wednesday the 9th to Friday the 11th, it’s back to poor conditions with onshore or cross-onshore wind and only 3 ft to 5 ft – not worth the effort.
Saturday the 12th brings a brief window: heavy rain early but cross-off wind, then a glassy afternoon with 5 ft ESE swell (6-second period) and combined energy of 279 (moderate). This could surprise with clean, if a bit disorganized, waves.
Then Sunday the 13th and Monday the 14th – we’re back to oversized swell of 10 ft to 12 ft from the east, with onshore or cross-onshore wind. Again, too big for Barrinha and messy. If you’re a very experienced surfer, the early mornings of the 6th through 8th of September have the best trade-off of clean conditions and power, but you need to be comfortable with serious size.
Summing it up: the best bet for most of us is Tuesday morning the 1st of September – clean, glassy, 6 ft ESE swell with light offshore wind. After that, it’s either too small, too mediocre, or way too big.
Rusty.
Short Range ForecastHeavy rain (total 132mm), heaviest during Mon night. Warm (max 21°C on Tue morning, min 17°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the SW by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Thu morning, min 12°C on Wed night). Winds decreasing (fresh winds from the SW on Tue night, calm by Wed night). | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 5 | SSE 5 | E 8 | E 7 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | SSW 6 | SE 8 | SSE 8 | SE 8 | SE 8 | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 |
Wave Graph | |||||||||||||||||||
20 | 10 | 161 | 445 | 652 | 681 | 581 | 448 | 389 | 292 | 274 | 601 | 349 | 196 | 193 | 192 | 142 | 77 | 45 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | on | cross-on | glassy | cross-on | on | glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | glassy | cross-off | cross-off |
High Tide | 2:29AM0.72m | 3:10PM0.61m | 3:03AM0.71m | 3:32PM0.57m | 3:40AM0.67m | 3:55PM0.52m | 10:23PM0.25m | 4:21AM0.61m | 4:16PM0.47m | 11:17PM0.27m | 5:09AM0.54m | 4:34PM0.42m | 11:46PM0.30m | 6:19AM0.45m | 00:12AM0.32m | ||||
Low Tide | 9:22PM0.23m | 9:48AM0.03m | 9:51PM0.23m | 10:30AM0.12m | 10:20PM0.24m | 11:25AM0.22m | 8:38PM0.25m | 9:00AM0.38m | 12:42PM0.32m | 8:31PM0.23m | 8:18AM0.43m | 2:21PM0.39m | 8:45PM0.21m | 7:57AM0.44m | 9:04PM0.22m | ||||
— | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | |
— | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | |
mm | 3 | — | 3 | 36 | 21 | 26 | 41 | — | 2 | — | — | — | — | — | — | — | — | — | 8 |
Temp °C | 18 | 19 | 18 | 18 | 18 | 19 | 19 | 21 | 20 | 16 | 18 | 18 | 14 | 21 | 21 | 15 | 20 | 20 | 16 |
Feels °C | 18 | 20 | 18 | 19 | 20 | 21 | 20 | 21 | 19 | 10 | 14 | 15 | 14 | 17 | 16 | 11 | 19 | 19 | 15 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | E 8 | — | — | NE 9 | E 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SSE 8 | SE 8 | SE 8 | SE 9 | SE 10 | SE 10 | NE 6 | SE 10 |
211 | 167 | 161 | — | — | 120 | 581 | 448 | 389 | 190 | 274 | 601 | 349 | 196 | 193 | 192 | 142 | 66 | 45 | |
Swell 2 Height (m) Direction Period (s) | S 5 | SSE 5 | S 6 | — | — | — | ENE 9 | ENE 8 | NE 8 | ENE 8 | ESE 9 | ENE 10 | ENE 10 | ENE 9 | S 8 | ENE 9 | ENE 6 | SE 10 | NE 6 |
20 | 8 | 15 | — | — | — | 202 | 45 | 62 | 62 | 151 | 137 | 103 | 86 | 1 | 61 | 26 | 77 | 15 | |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | — | — | — | — | — | — | — | ENE 10 | — | SSW 6 | S 6 | — | S 7 | ENE 9 | E 8 | E 9 |
9 | 10 | 9 | — | — | — | — | — | — | — | 176 | — | 35 | 11 | — | 1 | 42 | 36 | 38 | |
Wind waves Height (m) Direction Period (s) | — | — | — | E 7 | E 8 | E 8 | — | — | — | SSW 6 | S 7 | S 7 | — | NNE 2 | NE 9 | NNE 5 | NNE 6 | — | S 4 |
— | — | — | 445 | 652 | 681 | — | — | — | 292 | 245 | 285 | — | 1 | 260 | 64 | 43 | — | 15 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 6 | 40 | 0 | 1 | 6 | 0 | 25 | 25 | 3 | 28 | 1 | 36 | 510 | 59 | 0 | 0 | 15 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Barrinha Surf forecast
The above surf forecast table for Barrinha provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Barrinha can be found by selecting the local surf guide option on the grey menu. Our Barrinha 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 (Barrinha) 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 Barrinha 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.
Barrinha is 17 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.











