Surf Forecasts:
How big are the waves at Maresias today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 2.5ft (0.7m), 10s period with S swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 2ft (0.6m), 9s period with S swell.
- Evening surf: Evening surf (19 Sep, local time) - 1.5ft (0.4m), 13s period with S swell.
The current surf forecast for Maresias at 5AM is: 0.7m 10s primary swell from a South direction and 0.1m 15s secondary swell from a South direction (forecast issued at 08:00pm September 18). An open ocean swell of 1.9m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 2.5ft (0.7m) | 10s |
| Afternoon (19 Sep) | 2ft (0.6m) | 9s |
| Evening (19 Sep) | 1.5ft (0.4m) | 13s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Sun afternoon. Warm (max 34°C on Mon afternoon, min 19°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | ||||||||||||||||
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 | |
Swell Height Map |  | |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 13 | S 9 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 |
Wave Graph  | ||||||||||||||||||
 kJ | 162 | 159 | 125 | 123 | 90 | 89 | 85 | 61 | 60 | 50 | 40 | 51 | 52 | 51 | 47 | 46 | 25 | 24 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | glassy | cross-off | cross-off |
High Tide | 5:21PM0.77m | 7:39AM0.68m | 12:29PM0.76m | 6:11PM0.68m | 11:27PM0.57m | 12:40PM0.85m | ||||||||||||
Low Tide | 1:48AM0.44m | 8:45AM0.68m | 4:18PM0.66m | 10:46PM0.57m | 4:10AM0.41m | 5:40PM0.57m | ||||||||||||
 |  |  | |  | | | | | | | |  | | | | | | |
 | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 |
Temp °C | 20 | 20 | 19 | 20 | 19 | 21 | 24 | 22 | 20 | 20 | 20 | 20 | 20 | 23 | 23 | 24 | 21 | 22 |
Feels °C | 21 | 21 | 20 | 21 | 20 | 23 | 25 | 22 | 20 | 20 | 21 | 21 | 21 | 24 | 25 | 27 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 13 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 162 | 159 | 125 | 123 | 90 | 89 | 85 | 61 | 60 | 41 | 40 | 25 | 52 | 552 | 461 | 405 | 347 | 338 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 9 | S 13 | S 12 | S 12 | S 12 | S 12 |
| kJ | — | — | — | — | 5 | 4 | 4 | 14 | 31 | 30 | 28 | 51 | 25 | 51 | 47 | 46 | 25 | 24 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 13 | SSW 9 | — | S 13 | S 9 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 50 | 8 | — | 32 | 14 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 258 | 401 | 413 | 374 | 338 | 312 | 312 | 338 | 448 | 520 | 583 | 723 | 643 | 778 | 671 | 553 | 505 | 488 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 4 | 0 | 0 | 0 | 0 | 4 | 4 | 10 | 10 | 4 | 0 | 0 | 21 | 32 | 0 | 4 | 4 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||
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