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Praia de Sao Marcos surfForecast / Maranhao / Brazil
12 Day Weather and Surf, issued 2 pm Friday 31 Oct 2025 -03
Best Forecast Surf Conditions for Praia de Sao Marcos this week:
The most powerful waves expected at Praia de Sao Marcos in the next 12 days are 1.2m 5s and forecast to arrive on Monday (Nov 03) at 9AM. 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 | 9AM (Mon 3rd Nov) | 4ft (1.2m) 5s |
Table - best surf conditions forecast for Praia de Sao Marcos over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 28°C on Fri afternoon, min 26°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Mon afternoon, min 26°C on Mon afternoon). Mainly fresh winds. | ||||||||||||||||||||||
Fri 31 | Saturday 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wednesday 05 | Thursday 06 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 4 | 4 | 5 | 5 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 4 | 5 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 28 | 26 | 49 | 39 | 24 | 64 | 70 | 51 | 76 | 51 | 53 | 32 | 31 | 25 | 49 | 53 | 49 | 76 | 57 | 55 | 64 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | ||
High Tide / height (m) | 3:22AM 5.22 | 3:53PM 5.40 | 4:20AM 5.64 | 4:44PM 5.82 | 5:10AM 6.06 | 5:30PM 6.20 | 5:57AM 6.39 | 6:14PM 6.49 | 6:43AM 6.59 | 6:57PM 6.65 | 7:27AM 6.63 | 7:40PM 6.66 | 8:13AM 6.50 | ||||||||||
Low Tide / height (m) | 8:53PM 1.71 | 9:26AM 1.41 | 9:55PM 1.25 | 10:23AM 1.04 | 10:49PM 0.74 | 11:14AM 0.68 | 11:39PM 0.28 | 12:02PM 0.39 | 12:25AM -0.06 | 12:48PM 0.23 | 1:12AM -0.23 | 1:34PM 0.22 | 1:58AM -0.20 | ||||||||||
Fri 31 | Saturday 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wednesday 05 | Thursday 06 | |||||||||||||||||
| Sunrise | - | - | 5:33 | - | - | 5:33 | - | - | 5:33 | - | - | 5:33 | - | - | 5:33 | - | - | 5:33 | - | - | 5:33 | ||
| Sunset | 5:46 | - | - | 5:46 | - | - | 5:46 | - | - | 5:46 | - | - | 5:46 | - | - | 5:46 | - | - | 5:46 | - | - | ||
 |  |  | | | | | | | |  | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 28 | 26 | 28 | 28 | 26 | 28 | 27 | 26 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | ||
| Feels °C (?) | 27 | 27 | 27 | 28 | 27 | 27 | 26 | 27 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | ||
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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 Praia de Sao Marcos 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 Praia de Sao Marcos Surf forecast
The above surf forecast table for Praia de Sao Marcos provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Praia de Sao Marcos can be found by selecting the local surf guide option on the grey menu. Our Praia de Sao Marcos 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 (Praia de Sao Marcos) 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 Praia de Sao Marcos 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.
Praia de Sao Marcos is 8 km (5 miles) from the city of Itaqui. If you plan a holiday in Maranhão, look for hotels and other accommodation in Itaqui. Itaqui has rooms for a wide range of budgets as well as car hire and transport links.
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