Surf Forecasts:
Barra do Una surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 13 Aug, 6PM (local time) - 4.5ft (1.4m), 14s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 9AM (local time) - 7ft (2.1m), 13s period, SE swell with 1,429 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 6PM (local time) - 4.5ft (1.4m), 14s period with SSE 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 Thursday (Aug 13) at 6PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.4m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Barra do Una in the next 16 days are 2.1m 13s and forecast to arrive on Saturday (Aug 15) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 13th Aug) | 4.5ft (1.4m) 14s |
| Best Surf | 6PM (Thu 13th Aug) | 4.5ft (1.4m) 14s |
| Most Powerful | 9AM (Sat 15th Aug) | 7ft (2.1m) 13s |
Table - best surf conditions forecast for Barra do Una over the next 16 days.
Short Range ForecastMostly dry. Warm (max 21°C on Thu morning, min 18°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the ENE by Sat afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Tue morning, min 18°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 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 |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSE 13 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SE 13 | ESE 7 | ESE 7 | E 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | SSE 7 | SSE 6 | SSE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 405 | 773 | 572 | 424 | 444 | 778 | 1429 | 258 | 259 | 399 | 212 | 268 | 262 | 262 | 176 | 180 | 137 | 72 | 75 | 51 | 64 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | glassy | glassy | glassy | cross-off | cross-off | cross-off | glassy | cross-off | glassy | cross-on | cross-off | off | glassy | glassy | cross-on | on | cross-on | off |
High Tide | 3:25PM1.34m | 3:08AM1.40m | 3:51PM1.29m | 3:40AM1.41m | 4:16PM1.24m | 4:13AM1.38m | 4:40PM1.18m | 4:47AM1.29m | 5:03PM1.12m | 5:22AM1.18m | 5:27PM1.05m | 6:03AM1.05m | 5:54PM0.96m | ||||||||
Low Tide | 9:19AM-0.03m | 9:27PM0.43m | 9:41AM0.03m | 9:31PM0.40m | 9:58AM0.11m | 9:40PM0.35m | 10:12AM0.21m | 9:58PM0.32m | 10:27AM0.32m | 10:22PM0.31m | 10:44AM0.43m | 10:50PM0.35m | 11:00AM0.55m | 11:20PM0.42m | |||||||
 |  |  |  | |  | | | | | | | | |  | | | | | | | |
 | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — |
 | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 18 | 19 | 20 | 20 | 20 | 20 | 19 | 22 | 21 | 19 | 23 | 22 | 21 | 31 | 30 | 19 | 20 | 21 | 18 |
Feels °C | 23 | 23 | 19 | 21 | 22 | 22 | 19 | 18 | 19 | 24 | 22 | 21 | 25 | 23 | 22 | 32 | 31 | 19 | 21 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SE 13 | SSE 12 | SSE 11 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | SSE 7 | SSE 6 | SSE 7 |
| kJ | 405 | 773 | 572 | 424 | 444 | 778 | 864 | 258 | 135 | 186 | 212 | 268 | 262 | 262 | 176 | 180 | 137 | 72 | 75 | 51 | 64 |
Swell 2 Height (m) Direction Period (s) | SSE 16 | E 5 | E 5 | E 5 | E 5 | E 8 | — | — | — | SSE 11 | SSE 11 | S 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 9 | E 8 | E 8 | E 7 |
| kJ | 151 | 8 | 5 | 5 | 2 | 1 | — | — | — | 93 | 66 | 57 | 35 | 20 | 20 | 10 | 8 | 7 | 32 | 29 | 26 |
Swell 3 Height (m) Direction Period (s) | E 5 | — | — | E 7 | E 8 | — | — | — | — | SE 13 | SE 13 | — | S 13 | SE 13 | — | — | — | S 8 | — | SE 13 | SE 13 |
| kJ | 14 | — | — | 4 | 6 | — | — | — | — | 7 | 7 | — | 3 | 7 | — | — | — | 1 | — | 7 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 13 | ESE 7 | ESE 7 | E 8 | — | — | — | — | — | — | SSW 4 | S 5 | — | — | E 7 |
| kJ | — | — | — | — | — | — | 1429 | 245 | 259 | 399 | — | — | — | — | — | — | 19 | 36 | — | — | 51 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 12 | 156 | 0 | 0 | 0 | 0 | 86 | 152 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 7 | 67 | 173 | 0 |
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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