Surf Forecasts:
Barra do Una surf forecast from 19 Sep 2026:
- Best quality surf: Thursday 24 Sep, 9AM (local time) - 4.5ft (1.4m), 16s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 23 Sep, 9PM (local time) - 6.5ft (2.0m), 16s period, SSE swell with 1,913 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 12AM (local time) - 5ft (1.6m), 7s period with E swell.
Best Forecast Surf Conditions for Barra do Una this week:
The surf forecast for Barra do Una over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 12AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 0.3m and 9s. Another secondary swell of 0.2m and 13s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Barra do Una in the next 16 days are 2.0m 16s and forecast to arrive on Wednesday (Sep 23) 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 0.4m 2s period and expected on Monday (Sep 21) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 20th Sep) | 5ft (1.6m) 7s |
| Best Surf | 9AM (Thu 24th Sep) | 4.5ft (1.4m) 16s |
| Most Powerful | 9PM (Wed 23rd Sep) | 6.5ft (2.0m) 16s |
Table - best surf conditions forecast for Barra do Una over the next 16 days.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri night. Warm (max 34°C on Mon morning, min 19°C on Fri night). Winds decreasing (fresh winds from the ENE on Fri night, calm by Sun morning). | Days 5-7 Weather SummaryHeavy rain (total 41mm), heaviest during Tue night. Warm (max 24°C on Mon night, min 17°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||
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) | E 7 | ESE 7 | ESE 7 | E 7 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | E 9 | E 8 | E 8 | ESE 8 | ESE 9 | SSE 6 | SSE 6 | SSE 16 | SSE 16 | SSE 15 | SSE 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 286 | 208 | 203 | 285 | 336 | 287 | 240 | 189 | 151 | 48 | 46 | 53 | 77 | 98 | 207 | 1230 | 991 | 744 | 596 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | glassy | off | cross | off | on | off | cross-on | cross | on | cross-on | cross-on | cross | cross-off | cross-on | cross-off |
High Tide | 8:05AM0.81m | 1:30PM0.87m | 7:21PM0.77m | 1:03PM0.96m | 11:09PM0.81m | 12:55PM1.07m | 00:02AM0.97m | 1:03PM1.18m | 00:31AM1.13m | 1:19PM1.28m | 1:00AM1.27m | 1:41PM1.35m | 1:30AM1.39m | ||||||
Low Tide | 11:08PM0.49m | 10:10AM0.78m | 5:22PM0.75m | 11:49PM0.64m | 4:51AM0.49m | 5:59PM0.62m | 5:47AM0.35m | 6:29PM0.50m | 6:27AM0.21m | 6:57PM0.39m | 7:02AM0.09m | 7:26PM0.31m | 7:35AM0.00m | 7:53PM0.24m | |||||
 |  |  |  |  | |  |  | |  | |  |  |  | |  | | | | |
 | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 6:01 | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — |
mm | 2 | — | 1 | 1 | — | 1 | — | — | — | — | — | 2 | 13 | 6 | 6 | 8 | 2 | 4 | 6 |
Temp °C | 19 | 21 | 21 | 19 | 21 | 22 | 22 | 34 | 32 | 24 | 23 | 21 | 20 | 18 | 18 | 18 | 19 | 19 | 19 |
Feels °C | 16 | 20 | 20 | 18 | 23 | 22 | 24 | 34 | 34 | 27 | 23 | 23 | 23 | 18 | 18 | 18 | 20 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | S 10 | SSE 9 | SSE 9 | SSE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | E 9 | E 8 | E 8 | ESE 8 | ESE 9 | ESE 9 | SSE 6 | SE 9 | SSE 16 | SSE 15 | SSE 14 |
| kJ | 49 | 29 | 28 | 16 | 336 | 287 | 240 | 189 | 151 | 48 | 46 | 53 | 77 | 61 | 132 | 22 | 991 | 744 | 596 |
Swell 2 Height (m) Direction Period (s) | — | S 15 | S 14 | SSE 13 | S 9 | S 12 | S 12 | S 11 | S 11 | S 10 | S 9 | S 12 | S 11 | SSE 14 | S 13 | SSE 20 | ESE 6 | ESE 7 | ESE 11 |
| kJ | — | 4 | 4 | 16 | 6 | 12 | 3 | 2 | 2 | 2 | 2 | 3 | 2 | 37 | 158 | 75 | 53 | 64 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 13 | — | — | — | — | S 14 | S 12 | S 9 | — | — | ESE 9 | — | SE 12 | SE 11 | — |
| kJ | — | — | — | — | 13 | — | — | — | — | 4 | 3 | 1 | — | — | 42 | — | 35 | 20 | — |
Wind waves Height (m) Direction Period (s) | E 7 | ESE 7 | ESE 7 | E 7 | — | — | — | — | NW 2 | — | SW 4 | SSW 5 | S 5 | SSE 6 | SSE 6 | SSE 16 | ESE 7 | — | ESE 6 |
| kJ | 286 | 208 | 203 | 285 | — | — | — | — | 1 | — | 12 | 17 | 20 | 98 | 207 | 1230 | 114 | — | 80 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 86 | 83 | 152 | 0 | 0 | 0 | 2 | 0 | 7 | 0 | 7 | 92 | 59 | 177 | 177 | 86 | 0 | 86 | 86 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Barra do Una surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Barra do Una Surf forecast
The above surf forecast table for Barra do Una 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 Una can be found by selecting the local surf guide option on the grey menu. Our Barra do Una 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 Una) 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 Una 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 Una is 13 km (8 miles) from the city of Peruibe. If you plan a holiday in São Paulo, look for hotels and other accommodation in Peruibe. Peruibe has rooms for a wide range of budgets as well as car hire and transport links.
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