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Surf Forecasts:
Barra do Una surfForecast / São Paulo / Brazil
16 Day Weather and Surf, issued 8 am Wednesday 13 May 2026 -03Forecast update in hr min s Forecast update imminent
Barra do Una surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Barra do Una sea temperature is
23.8° C
(Which is 1.1°C warmer than normal for this time of year)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 Wednesday (May 13) at 6PM. The primary swell is predicted to be 1.0m and 12s period with a secondary swell of 0.2m and 9s. 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 1.7m 16s and forecast to arrive on Tuesday (May 19) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (May 17) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 13th May) | 3.5ft (1.0m) 12s |
| Best Surf | 6PM (Thu 14th May) | 4ft (1.2m) 14s |
| Most Powerful | 9PM (Tue 19th May) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Barra do Una over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Fri afternoon. Warm (max 21°C on Wed morning, min 16°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 67mm), heaviest during Sun morning. Warm (max 24°C on Sun afternoon, min 18°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SSE 13 | SSE 13 | S 12 | SSE 11 | SSE 14 | S 13 | S 12 | S 12 | S 11 | S 10 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | SSE 10 | S 8 | SSE 9 | SSE 17 | SSE 15 | |
523 | 424 | 294 | 217 | 613 | 421 | 314 | 299 | 151 | 106 | 119 | 116 | 114 | 85 | 77 | 50 | 31 | 572 | 404 | 896 | 1232 | |
Wind (km/h) | |||||||||||||||||||||
glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | off | cross-on | cross-on | off | cross-on | glassy | cross-off | cross-on | cross-on | cross-on | on | cross-on | cross | |
High Tide | 12:18PM1.26m | 00:55AM1.24m | 1:05PM1.36m | 1:30AM1.24m | 1:50PM1.42m | 2:04AM1.21m | 2:34PM1.44m | 2:36AM1.16m | 3:18PM1.40m | 3:09AM1.12m | 4:02PM1.33m | 3:42AM1.08m | 4:48PM1.21m | ||||||||
Low Tide | 7:08PM0.12m | 7:24AM0.24m | 7:52PM0.14m | 7:56AM0.19m | 8:35PM0.21m | 8:25AM0.15m | 9:16PM0.32m | 8:49AM0.13m | 9:54PM0.46m | 9:09AM0.14m | 10:20PM0.60m | 9:30AM0.16m | 9:49PM0.71m | ||||||||
 |  |  |  | | |  |  |  | |  |  | | | | | | | | |  | |
 | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — |
 | — | 5:32 | — | — | 5:32 | — | — | 5:31 | — | — | 5:31 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — |
— | — | — | — | — | — | 1 | 7 | 5 | — | 2 | 9 | 28 | — | 3 | 6 | 9 | 10 | 4 | 5 | 5 | |
Temp °C | 21 | 21 | 18 | 20 | 20 | 18 | 19 | 19 | 18 | 21 | 21 | 20 | 20 | 24 | 22 | 20 | 19 | 18 | 18 | 18 | 18 |
21 | 21 | 18 | 20 | 20 | 18 | 19 | 20 | 20 | 22 | 22 | 23 | 20 | 27 | 23 | 19 | 18 | 18 | 19 | 18 | 18 | |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 13 | S 12 | SSE 11 | SSE 14 | S 13 | S 12 | S 12 | S 11 | S 10 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | SSE 10 | S 8 | SSE 9 | SSE 8 | SSE 15 |
 kJ | 523 | 424 | 294 | 217 | 613 | 421 | 314 | 299 | 151 | 106 | 119 | 116 | 114 | 85 | 77 | 50 | 31 | 364 | 404 | 262 | 1232 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | E 8 | E 8 | E 8 | SSW 3 | ESE 5 | SE 5 | SE 6 | ESE 5 | ENE 4 | E 5 | E 6 | SSE 15 | SSE 13 | SSE 16 | SSE 17 | SE 7 |
| kJ | 8 | 8 | 8 | 8 | 7 | 5 | 5 | 5 | 1 | 3 | 14 | 8 | 3 | 5 | 4 | 3 | 21 | 35 | 151 | 896 | 73 |
Swell 3 Height (m) Direction Period (s) | ESE 15 | SE 14 | SE 14 | SE 14 | ESE 14 | SE 14 | SE 14 | SE 14 | E 8 | SSE 14 | SE 13 | E 7 | E 7 | SE 5 | SSE 6 | SSE 5 | E 5 | E 7 | E 6 | — | E 7 |
| kJ | 22 | 8 | 8 | 8 | 18 | 7 | 8 | 8 | 5 | 18 | 7 | 1 | 4 | 1 | 3 | 3 | 2 | 1 | 3 | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 4 | — | — | S 5 | S 8 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | — | — | 31 | 572 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 22 | 0 | 0 | 309 | 0 | 0 | 22 | 0 | 2 | 165 | 0 | 2 | 0 | 0 | 224 | 152 | 88 | 12 | 12 | 7 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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