Surf Forecasts:
Barra do Chui surf forecast from 15 Sep 2026:
- Best quality surf: Monday 21 Sep, 9AM (local time) - 3.5ft (1.0m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 20 Sep, 9PM (local time) - 4ft (1.2m), 10s period, E swell with 279 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 3AM (local time) - 2ft (0.6m), 10s period with SSE swell.
Best Forecast Surf Conditions for Barra do Chui this week:
The surf forecast for Barra do Chui over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 3AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.7m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Barra do Chui in the next 16 days are 1.2m 10s and forecast to arrive on Sunday (Sep 20) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Sunday (Sep 20) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 15th Sep) | 2ft (0.6m) 10s |
| Best Surf | 9AM (Mon 21st Sep) | 3.5ft (1.0m) 10s |
| Most Powerful | 9PM (Sun 20th Sep) | 4ft (1.2m) 10s |
Table - best surf conditions forecast for Barra do Chui over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's talk about what's on the table for Barra do Chui over the next couple of weeks.
The truth is, the first week and a bit is pretty grim for paddle surfing. We've got a long stretch of poor conditions with messy winds and cross-onshore chop dominating the picture from the 15th to the 20th of September. The swell is small and weak, with the combined energy struggling to hit much more than 300. You wouldn’t even bother looking at it for a proper surf.
Things finally show a glimmer of hope on Monday the 21st of September. The morning shapes up with a clean 3ft swell from the east, a 10-second period, and a light cross-offshore wind. That’s the best call of the whole run. The combined energy is just over 200, and the conditions are clean. It’s not a monster, but it’s surfable and tidy. The afternoon goes glassy with light winds and a dropping 3ft swell, but that morning window is your best shot by a long shot.
After that, it gets messy again, but Wednesday the 23rd of September morning offers another quick clean window. A 2ft groundswell from the south with a very long 12-second period and light cross-offshore winds. For a beach/jetty setup like Barra do Chui, that long period might make the waves a bit straight, but with clean conditions and light winds, it’s worth a look if you’re keen for a cruisey session.
The water temperature is about average for the time of year, nothing wild to report there. Crowds can show up here sometimes, so keep that in mind.
The second week drifts back to mediocrity with poor winds and small, weak, onshore junk. There’s really nothing to get excited about after that 21st and 23rd. The forecast is pretty clear: the first real standouts are those two mornings. Aim for Monday the 21st morning if you want the most rideable and cleanest surf on offer.
- Rusty
Short Range ForecastMostly dry. Very mild (max 16°C on Tue afternoon, min 8°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SSW by Tue afternoon). | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Sun morning. Very mild (max 16°C on Fri afternoon, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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 10 | S 9 | S 9 | S 6 | S 8 | S 9 | SSE 10 | SSE 9 | SE 9 | SSE 9 | SSE 8 | ENE 4 | ENE 6 | ENE 6 | S 11 | SSE 10 | E 8 | E 9 | E 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 72 | 42 | 38 | 109 | 138 | 162 | 235 | 184 | 120 | 70 | 41 | 39 | 69 | 106 | 9 | 10 | 273 | 274 | 234 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross | cross | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross |
High Tide | 10:06PM0.49m | 3:36AM0.37m | 3:43PM0.28m | 10:53PM0.45m | 4:28AM0.35m | 4:25PM0.26m | 11:38PM0.42m | 5:22AM0.34m | 5:10PM0.25m | 00:21AM0.39m | 6:20AM0.32m | 12:30PM0.57m | 6:01PM0.23m | 7:28AM0.31m | 1:11PM0.55m | 7:03PM0.22m | 8:49AM0.32m | 1:54PM0.52m | 8:13PM0.23m |
Low Tide | 1:07AM0.24m | 6:43AM0.11m | 1:51PM0.22m | 7:07PM-0.02m | 7:24AM0.15m | 2:47PM0.23m | 7:52PM-0.01m | 8:04AM0.19m | 3:43PM0.23m | 8:36PM0.02m | 3:29AM0.19m | 4:38PM0.22m | 9:21PM0.07m | 4:17AM0.17m | 5:29PM0.21m | 10:09PM0.11m | 5:05AM0.15m | 6:17PM0.20m | |
 |  |  |  | | | | | | | |  | | | |  |  | | | |
 | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — |
 | 6:22 | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 7 | — | — |
Temp °C | 11 | 14 | 16 | 10 | 11 | 11 | 11 | 14 | 15 | 14 | 15 | 16 | 14 | 16 | 16 | 15 | 14 | 15 | 14 |
Feels °C | 9 | 9 | 12 | 6 | 7 | 8 | 8 | 12 | 12 | 11 | 12 | 13 | 11 | 13 | 13 | 12 | 12 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | E 8 | ESE 8 | E 8 | S 9 | SSE 10 | SSE 9 | SE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 11 | S 11 | SSE 10 | E 8 | E 9 | E 10 |
| kJ | 54 | 30 | 30 | 12 | 5 | 162 | 235 | 184 | 120 | 70 | 41 | 24 | 7 | 12 | 9 | 10 | 273 | 274 | 234 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | S 9 | S 9 | SSE 14 | SE 12 | SSE 11 | E 8 | E 7 | E 8 | E 7 | E 7 | SE 13 | SSE 12 | SE 8 | S 8 | — | SSE 10 | SSE 10 | SW 4 |
| kJ | 72 | 42 | 38 | 19 | 6 | 40 | 1 | 1 | 1 | 1 | 1 | 7 | 15 | 3 | 1 | — | 10 | 9 | 2 |
Swell 3 Height (m) Direction Period (s) | ESE 7 | ESE 9 | S 16 | S 11 | — | E 8 | E 12 | E 12 | E 12 | E 11 | E 11 | SE 11 | SE 10 | — | — | — | — | — | S 9 |
| kJ | 33 | 8 | 5 | 2 | — | 5 | 3 | 3 | 3 | 3 | 2 | 5 | 4 | — | — | — | — | — | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 6 | S 8 | — | NE 3 | NE 3 | NE 3 | ENE 4 | ENE 5 | ENE 4 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | — | SW 4 |
| kJ | — | — | — | 109 | 138 | — | 2 | 2 | 2 | 5 | 13 | 39 | 69 | 106 | 182 | 286 | 483 | — | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 38 | 13 | 439 | 123 | 42 | 26 | 13 | 42 | 26 | 186 | 741 | 741 | 741 | 741 | 472 | 43 | 186 | 186 |
Best forecast wave conditions in Rio Grande Do Sul | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Barra do Chui Surf forecast
The above surf forecast table for Barra do Chui provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Barra do Chui can be found by selecting the local surf guide option on the grey menu. Our Barra do Chui 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 (Barra do Chui) 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 Barra do Chui 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.
Barra do Chui is 21 km (13 miles) from Santa Vitoria do Palmar. If you plan a holiday in Rio Grande Do Sul, look for hotels and other accommodation in Santa Vitoria do Palmar. Santa Vitoria do Palmar has rooms for a wide range of budgets as well as car hire and transport links.
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