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Mar Bravo surfForecast / Piauí / Brazil
12 Day Weather and Surf, issued 2 am Tuesday 16 Sep 2025 -03
Best Forecast Surf Conditions for Mar Bravo this week:
The most powerful waves expected at Mar Bravo in the next 12 days are 1.6m 7s and forecast to arrive on Thursday (Sep 18) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3AM (Thu 18th Sep) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Mar Bravo over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 29°C on Wed morning, min 24°C on Tue night). Winds increasing (light winds from the E on Tue morning, strong winds from the ENE by Thu afternoon). | Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Fri morning, min 25°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 7 | 5 | 7 | 7 | 6 | 7 | 7 | 6 | 7 | 7 | 5 | 7 | 7 | 6 | 7 | 7 | 6 | 6 | 6 | 6 | 7 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 105 | 89 | 157 | 151 | 143 | 211 | 167 | 135 | 170 | 136 | 84 | 157 | 156 | 167 | 173 | 151 | 157 | 155 | 128 | 139 | 173 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on |
High Tide / height (m) | 12:58PM 2.18 | 1:21AM 2.51 | 2:18PM 2.35 | 2:31AM 2.69 | 3:11PM 2.57 | 3:22AM 2.88 | 3:51PM 2.78 | 4:03AM 3.05 | 4:25PM 2.96 | 4:38AM 3.15 | 4:56PM 3.09 | 5:10AM 3.20 | 5:25PM 3.16 | ||||||||
Low Tide / height (m) | 7:04PM 1.18 | 8:09AM 0.86 | 8:25PM 1.00 | 9:07AM 0.68 | 9:18PM 0.78 | 9:49AM 0.51 | 9:59PM 0.58 | 10:24AM 0.39 | 10:34PM 0.42 | 10:55AM 0.30 | 11:07PM 0.30 | 11:24AM 0.27 | 11:37PM 0.24 | ||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| Sunrise | 5:39 | - | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - | - | 5:35 | - | - |
| Sunset | - | 5:44 | - | - | 5:44 | - | - | 5:44 | - | - | 5:43 | - | - | 5:43 | - | - | 5:43 | - | - | 5:42 | - |
 | |  | | |  | | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 27 | 26 | 29 | 27 | 26 | 28 | 27 | 25 | 29 | 27 | 26 | 28 | 27 | 25 | 28 | 27 | 26 | 28 | 27 | 25 |
| Feels °C (?) | 26 | 25 | 25 | 27 | 25 | 24 | 27 | 26 | 23 | 28 | 25 | 25 | 26 | 24 | 22 | 27 | 24 | 24 | 27 | 26 | 24 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Piauí
Continuing clean conditions at Mar Bravo (calm at Piripiri 163 km from Mar Bravo). 1.5m 6s windswell from the ENE with a 0.4m 9s swell from the NNE. 2 swells combining to make bigger set waves.
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 Mar Bravo 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 Mar Bravo Surf forecast
The above surf forecast table for Mar Bravo provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Mar Bravo can be found by selecting the local surf guide option on the grey menu. Our Mar Bravo 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 (Mar Bravo) 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 Mar Bravo 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.
Are you planning a holiday in Piauí? If you are looking for accommodation near Mar Bravo, camping, hotels and holiday cottages in Piauí, consider staying in Parnaiba which is 19 km (12 miles) away. Other places in and around Piauí where you can find information about places to rent, and car hire include Munguba which is 78 km (48 miles) away and Camocim, 99 km (61 miles) away.
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