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Surf Forecasts:
Maresias surfForecast / São Paulo / Brazil
16 Day Weather and Surf, issued 8 pm Tuesday 21 Apr 2026 -03Forecast update in hr min s Forecast update imminent
Maresias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Maresias sea temperature is
24.7° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Maresias this week:
The surf forecast for Maresias over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Apr 22) at 3AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.5m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Maresias in the next 16 days are 1.9m 9s and forecast to arrive on Tuesday (Apr 28) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 9s period and expected on Tuesday (Apr 28) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 22nd Apr) | 2.5ft (0.7m) 9s |
| Best Surf | 12PM (Tue 28th Apr) | 5ft (1.6m) 10s |
| Most Powerful | 6AM (Tue 28th Apr) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for Maresias over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Warm (max 26°C on Wed morning, min 18°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Some drizzle, heaviest during Mon afternoon. Warm (max 31°C on Mon morning, min 21°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tue 28 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 10 | 9 | 9 | 9 | 10 | 9 | 14 | 14 | 14 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 5 | 6 | 9 | 10 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 92 | 75 | 56 | 53 | 32 | 29 | 37 | 106 | 96 | 56 | 44 | 39 | 35 | 48 | 50 | 47 | 26 | 27 | 156 | 492 | 434 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | on | cross- off | glass | cross- on | cross- off | glass | cross- on | off | glass | cross- on | cross- off | glass | cross | off | glass | on | cross- on | cross | cross | |
High Tide / height (m) | 4:33AM 0.85 | 6:20PM 11:32PM 0.81 0.79 | 5:06AM 0.79 | 12:13AM 0.86 | 6:03AM 0.73 | 12:37AM 0.90 | 8:41AM 0.70 | 12:51AM 0.92 | 11:35AM 0.82 | 12:58AM 0.95 | 12:13PM 0.94 | 1:05AM 0.98 | 12:48PM 1.03 | |||||||||
Low Tide / height (m) | 12:39AM 0.66 | 11:56AM 0.29 | 9:03PM 2:24AM 0.75 0.73 | 2:08PM 0.35 | 4:10AM 0.71 | 3:50PM 0.33 | 5:15AM 0.64 | 5:04PM 0.28 | 5:53AM 0.54 | 5:57PM 0.22 | 6:25AM 0.44 | 6:38PM 0.18 | 6:55AM 0.34 | |||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tue 28 | ||||||||||||||||
| Sunrise | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | |
| Sunset | - | - | 5:42 | - | - | 5:40 | - | - | 5:39 | - | - | 5:39 | - | - | 5:38 | - | - | 5:37 | - | - | 5:37 | |
 |  | | | | |  | | | | | | | | | | |  |  |  | | ||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 1 | 1 | |
| Temp. °C | 20 | 26 | 25 | 19 | 26 | 26 | 20 | 26 | 25 | 21 | 29 | 27 | 23 | 30 | 30 | 26 | 31 | 31 | 23 | 24 | 27 | |
| Feels °C (?) | 22 | 26 | 27 | 20 | 27 | 28 | 22 | 28 | 27 | 23 | 30 | 29 | 25 | 31 | 31 | 26 | 33 | 33 | 27 | 27 | 30 | |
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Maresias 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 Maresias Surf forecast
The above surf forecast table for Maresias provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Maresias can be found by selecting the local surf guide option on the grey menu. Our Maresias 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 (Maresias) 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 Maresias 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.
Maresias is 14 km (9 miles) from Sao Sebastiao. If you plan a holiday in São Paulo, look for hotels and other accommodation in Sao Sebastiao. Sao Sebastiao has rooms for a wide range of budgets as well as car hire and transport links.
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