Surf Forecasts:
Barra do Sai surf forecast from 11 Oct 2026:
- Best quality surf: Friday 16 Oct, 12PM (local time) - 5.5ft (1.7m), 8s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 17 Oct, 3AM (local time) - 8ft (2.5m), 9s period, SE swell with 1,083 kJ wave energy.
- Next surfable swell (1★+): Monday 12 Oct, 12PM (local time) - 1.5ft (0.4m), 8s period with ESE swell.
Best Forecast Surf Conditions for Barra do Sai this week:
The surf forecast for Barra do Sai over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Oct 12) at 12PM. The primary swell is predicted to be 0.4m and 8s period with a secondary swell of 0.4m and 4s. Another secondary swell of 0.5m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Barra do Sai in the next 16 days are 2.5m 9s and forecast to arrive on Saturday (Oct 17) at 3AM. 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 8s period and expected on Sunday (Oct 11) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 12th Oct) | 1.5ft (0.4m) 8s |
| Best Surf | 12PM (Fri 16th Oct) | 5.5ft (1.7m) 8s |
| Most Powerful | 3AM (Sat 17th Oct) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Barra do Sai over the next 16 days.
Short Range ForecastHeavy rain (total 52mm), heaviest during Tue afternoon. Warm (max 22°C on Sat night, min 18°C on Sun afternoon). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 61mm), heaviest during Thu night. Warm (max 20°C on Tue night, min 18°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | ||||||||||||||
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 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | SSE 8 | E 7 | E 7 | SSE 11 | SSE 10 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 35 | 44 | 20 | 19 | 18 | 54 | 17 | 17 | 11 | 166 | 14 | 22 | 38 | 54 | 55 | 53 | 88 | 200 | 330 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross-on | on | off | cross | cross-on | cross-on | cross | cross | on | cross-on | cross-on | cross | cross-off | cross-on | cross-on |
High Tide | 2:42AM1.46m | 2:59PM1.30m | 3:17AM1.42m | 3:25PM1.24m | 3:53AM1.35m | 3:50PM1.16m | 4:31AM1.25m | 4:14PM1.08m | 5:14AM1.13m | 4:41PM0.99m | 6:09AM1.02m | 2:46PM0.91m | |||||||
Low Tide | 8:16AM0.15m | 8:15PM0.11m | 8:37AM0.20m | 8:40PM0.06m | 9:01AM0.27m | 9:08PM0.06m | 9:26AM0.36m | 9:38PM0.11m | 9:54AM0.45m | 10:11PM0.19m | 10:25AM0.55m | 4:28PM0.89m | 10:49PM0.31m | ||||||
 |  | |  | | |  |  |  | |  | | | | | | |  | | |
 | — | 5:43 | — | — | 5:43 | — | — | 5:41 | — | — | 5:41 | — | — | 5:39 | — | — | 5:39 | — | — |
 | 6:17 | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — |
mm | — | 2 | 2 | 8 | 1 | 2 | 17 | — | 20 | — | 2 | 3 | 14 | 4 | 3 | 27 | 1 | 7 | 7 |
Temp °C | 22 | 19 | 18 | 18 | 18 | 18 | 19 | 22 | 22 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 18 |
Feels °C | 24 | 20 | 18 | 19 | 19 | 19 | 22 | 23 | 24 | 22 | 22 | 22 | 23 | 20 | 20 | 20 | 21 | 21 | 16 |
Swell 1 Height (m) Direction Period (s) | E 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | E 7 | E 7 | ENE 5 | ENE 7 | SSE 4 | SE 4 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | ENE 7 | — |
| kJ | 35 | 44 | 20 | 19 | 18 | 18 | 17 | 17 | 5 | 15 | 6 | 4 | 38 | 54 | 55 | 53 | 88 | 4 | — |
Swell 2 Height (m) Direction Period (s) | SE 9 | S 12 | S 12 | SE 11 | SE 4 | SE 4 | SE 4 | ESE 8 | E 7 | SE 4 | E 6 | SE 9 | E 7 | E 7 | E 7 | E 7 | E 7 | — | — |
| kJ | 13 | 3 | 3 | 5 | 5 | 3 | 3 | 7 | 9 | 4 | 6 | 22 | 9 | 8 | 4 | 4 | 4 | — | — |
Swell 3 Height (m) Direction Period (s) | S 12 | SSE 9 | S 9 | SSE 9 | SE 9 | SE 9 | SE 9 | SE 5 | SSE 11 | SE 10 | SE 9 | E 7 | ESE 7 | E 13 | — | — | — | — | — |
| kJ | 3 | 8 | 7 | 15 | 3 | 3 | 12 | 3 | 11 | 15 | 14 | 9 | 5 | 3 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSE 4 | SE 4 | SE 5 | SSE 5 | SSE 8 | — | SE 5 | SE 4 | SSE 10 | — | — | — | — | — | — | S 3 | SE 8 | SE 9 |
| kJ | — | 7 | 9 | 10 | 13 | 54 | — | 6 | 3 | 166 | — | — | — | — | — | — | 5 | 200 | 330 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 166 | 166 | 99 | 129 | 166 | 25 | 70 | 47 | 38 | 99 | 99 | 25 | 99 | 99 | 49 | 0 | 47 | 99 |
Best forecast wave conditions in Santa Catarina - Norte | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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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 Sai 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 Sai Surf forecast
The above surf forecast table for Barra do Sai 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 Sai can be found by selecting the local surf guide option on the grey menu. Our Barra do Sai 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 Sai) 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 Sai 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 Sai is 1 km (1 miles) from the city of Guaratuba. If you plan a holiday in Santa Catarina - Norte, look for hotels and other accommodation in Guaratuba. Guaratuba has rooms for a wide range of budgets as well as car hire and transport links.
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