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Surf Forecasts:
Maresias surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 8 am Sunday 17 May 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
23.7° C
(Which is slightly warmer than usual)How big are the waves at Maresias today?
The current surf forecast for Maresias at 2PM is: 1.0m 11s primary swell from a South direction and 0.4m 3s secondary swell from a West-southwest direction (forecast issued at 08:00am May 17). An open ocean swell of 0.1m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 3.5ft (1.1m) | 11s |
| Afternoon (17 May) | 3.5ft (1.0m) | 11s |
| Evening (17 May) | 3.5ft (1.0m) | 11s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Mon afternoon. Warm (max 24°C on Sun afternoon, min 19°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SSE 15 | SSE 15 | S 10 | SW 9 | SSW 8 | SSW 8 | S 8 | SSE 19 | SSE 18 | S 17 | S 16 | S 16 | |
282 | 277 | 272 | 224 | 227 | 220 | 172 | 131 | 98 | 94 | 92 | 66 | 75 | 72 | 70 | 714 | 840 | 703 | 407 | 391 | 817 | 1769 | 2079 | 2175 | |
Wind (km/h) | ||||||||||||||||||||||||
off | glassy | cross-on | glassy | glassy | off | cross-off | cross-off | cross | off | glassy | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 3:15PM1.19m | 2:53AM0.93m | 3:58PM1.13m | 3:22AM0.92m | 4:42PM1.03m | |||||||||||||||||||
Low Tide | 9:09AM0.06m | 10:06PM0.35m | 9:48AM0.07m | 10:52PM0.47m | 10:31AM0.10m | 11:39PM0.58m | ||||||||||||||||||
 |  | | | |  | | |  |  |  | | | | | | | | |  | | | | | |
 | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | 6:31 |
 | — | — | — | 5:25 | — | — | — | — | — | — | — | 5:25 | — | — | — | — | — | — | — | 5:24 | — | — | — | 5:24 |
— | — | — | — | — | 1 | 1 | — | 1 | 2 | 2 | 1 | 4 | 2 | 1 | 2 | 2 | 2 | 1 | — | — | — | — | — | |
Temp °C | 21 | 22 | 23 | 24 | 21 | 21 | 21 | 22 | 21 | 21 | 24 | 22 | 22 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
23 | 25 | 25 | 26 | 24 | 22 | 20 | 24 | 24 | 23 | 28 | 24 | 24 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 13 | S 16 | S 8 | S 8 | S 8 | SSW 8 | S 17 | S 16 | S 16 |
 kJ | 282 | 277 | 272 | 224 | 227 | 220 | 172 | 131 | 98 | 94 | 92 | 66 | 65 | 45 | 64 | 32 | 46 | 535 | 407 | 299 | 221 | 1769 | 2079 | 2175 |
Swell 2 Height (m) Direction Period (s) | ESE 5 | E 7 | E 7 | E 7 | SE 5 | ESE 5 | E 7 | S 18 | ENE 4 | ENE 4 | ENE 4 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 16 | E 7 | S 13 | SSE 20 | SSE 19 | SSE 18 | SSW 8 | S 8 | S 8 |
| kJ | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 7 | 12 | 6 | 3 | 50 | 75 | 72 | 70 | 50 | 1 | 54 | 131 | 391 | 817 | 229 | 206 | 142 |
Swell 3 Height (m) Direction Period (s) | E 7 | SE 12 | SE 12 | SE 12 | E 7 | E 7 | SE 5 | E 7 | S 17 | S 16 | S 16 | ENE 4 | E 4 | E 4 | E 4 | E 7 | SE 14 | SSE 16 | SSE 15 | S 15 | SE 7 | SE 7 | SE 7 | — |
| kJ | 4 | 6 | 6 | 6 | 1 | 1 | 1 | 1 | 22 | 21 | 46 | 2 | 1 | 1 | 2 | 1 | 7 | 51 | 76 | 112 | 107 | 71 | 57 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 3 | SW 4 | — | NE 3 | NE 4 | NNE 5 | — | S 5 | SW 3 | SW 4 | SW 5 | WSW 5 | SW 9 | SSW 8 | SSW 8 | — | — | — | — | — | SE 7 |
| kJ | — | — | — | 4 | 6 | — | 4 | 14 | 39 | — | 1 | 2 | 21 | 40 | 61 | 714 | 840 | 703 | — | — | — | — | — | 65 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 26 | 0 | 0 | 0 | 4 | 0 | 4 | 0 | 0 | 26 | 26 | 8 | 13 | 26 | 13 | 13 | 8 | 13 | 8 | 8 | 13 | 8 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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