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Surf Forecasts:
Maresias surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 2 pm Thursday 21 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
24.0° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Maresias today?
The current surf forecast for Maresias at 6PM is: 3.0m 15s primary swell from a South direction (forecast issued at 02:00pm May 21). An open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | - | - |
| Afternoon (21 May) | 8ft (2.5m) | 16s |
| Evening (21 May) | 10ft (3.0m) | 15s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 58mm), heaviest during Sat afternoon. Warm (max 21°C on Sat morning, min 17°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | |
3103 | 3567 | 3640 | 3553 | 3436 | 3160 | 2898 | 3081 | 3081 | 2665 | 2614 | 2379 | 1984 | 1784 | 1575 | 1343 | 1283 | 976 | 852 | 726 | 604 | 566 | 472 | 396 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross | cross-off | cross-off | cross-off | off | glassy | cross-on | cross | cross | cross-off | glassy | cross-on | cross-on | glassy | |
High Tide | 6:25PM0.82m | 5:18AM0.87m | 7:56PM0.75m | 11:13PM0.78m | 6:20AM0.83m | 11:38PM0.79m | 7:54AM0.80m | |||||||||||||||||
Low Tide | 12:28PM0.22m | 1:34AM0.70m | 1:45PM0.28m | 8:38PM0.75m | 2:42AM0.68m | 3:01PM0.32m | 3:48AM0.63m | |||||||||||||||||
 |  |  | | | | | | | | | |  | | | | |  |  |  |  |  | |  | |
 | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:33 | — |
 | — | 5:24 | — | — | — | — | — | — | — | 5:23 | — | — | — | — | — | — | — | 5:23 | — | — | — | — | — | 5:23 |
1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 3 | 21 | 9 | 17 | 3 | 2 | 1 | 1 | |
Temp °C | 20 | 19 | 18 | 18 | 18 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 21 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 |
20 | 20 | 19 | 19 | 19 | 18 | 20 | 19 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 23 | 21 | 20 | 20 | 21 | 21 | 21 | 21 | 23 | |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 |
 kJ | 3103 | 3567 | 3640 | 3553 | 3436 | 3160 | 2898 | 3081 | 3081 | 2665 | 2614 | 2379 | 1984 | 1784 | 1575 | 1343 | 1283 | 976 | 852 | 726 | 604 | 566 | 472 | 396 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | — | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | — | E 9 | E 8 | E 8 | E 8 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 |
| kJ | 5 | 5 | 5 | — | — | 5 | 5 | 5 | 6 | 6 | 6 | 6 | — | 6 | 6 | 6 | 5 | 42 | 62 | 72 | 70 | 54 | 54 | 40 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 8 | — | — | — | — | — | SSE 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | 26 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | E 4 | ENE 4 | ENE 4 | ENE 4 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 13 | 20 | 14 | 13 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 66 | 11 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 4 | 0 | 0 | 0 | 0 | 0 | 50 | 8 | 8 | 0 | 0 | 4 | 4 | 0 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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