Surf Forecasts:
How big are the waves at Maresias today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 1.5ft (0.4m), 13s period with S swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 1.5ft (0.4m), 12s period with S swell.
- Evening surf: Evening surf (20 Sep, local time) - 1ft (0.3m), 12s period with S swell.
The current surf forecast for Maresias at 6AM is: 0.4m 13s primary swell from a South direction and 0.4m 9s secondary swell from a South direction (forecast issued at 02:00am September 20). An open ocean swell of 1.9m 8s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 1.5ft (0.4m) | 13s |
| Afternoon (20 Sep) | 1.5ft (0.4m) | 12s |
| Evening (20 Sep) | 1ft (0.3m) | 12s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Warm (max 34°C on Mon morning, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||||
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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | WSW 4 | WSW 5 | WSW 5 | SW 5 | SW 5 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 28 | 51 | 51 | 51 | 47 | 47 | 25 | 24 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 11 | 45 | 36 | 30 | 29 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | glassy | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | off | off | cross-on | cross | cross-on | cross-on | glassy | glassy |
High Tide | 11:27PM0.57m | 12:40PM0.85m | 00:00AM0.70m | 12:57PM0.95m | 00:23AM0.83m | 1:16PM1.03m | ||||||||||||||||||
Low Tide | 4:10AM0.41m | 5:40PM0.57m | 5:25AM0.31m | 6:17PM0.47m | 6:14AM0.19m | 6:48PM0.37m | ||||||||||||||||||
 |  |  |  | | |  | | | |  | | | |  | | | | | | |  | | | |
 | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:58 | — | — |
mm | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 5 |
Temp °C | 20 | 20 | 20 | 22 | 23 | 26 | 23 | 23 | 24 | 24 | 27 | 30 | 34 | 33 | 30 | 28 | 28 | 26 | 25 | 21 | 23 | 21 | 20 | 21 |
Feels °C | 21 | 23 | 23 | 25 | 25 | 27 | 23 | 23 | 25 | 24 | 27 | 30 | 34 | 34 | 31 | 27 | 27 | 26 | 26 | 22 | 25 | 22 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | E 8 | E 8 | E 8 | E 8 | S 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 |
| kJ | 25 | 25 | 481 | 393 | 349 | 343 | 25 | 282 | 235 | 245 | 264 | 228 | 187 | 187 | 148 | 120 | 100 | 102 | 103 | 105 | 108 | 140 | 143 | 150 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | S 9 | S 13 | S 12 | S 12 | — | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | NW 4 | S 10 | S 9 | SW 5 | SW 5 |
| kJ | 28 | 51 | 25 | 51 | 47 | 47 | — | 24 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 16 | 2 | 2 | 30 | 29 |
Swell 3 Height (m) Direction Period (s) | SSW 9 | — | S 13 | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | S 10 | E 14 | S 12 | S 10 | S 12 | S 12 | S 9 | S 11 |
| kJ | 16 | — | 51 | 14 | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 4 | 3 | 2 | 3 | 3 | 2 | 10 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | — | — | E 8 | — | E 8 | E 8 | E 8 | — | — | — | — | — | — | N 3 | NNW 3 | NNW 4 | NNW 4 | WSW 4 | WSW 5 | WSW 5 | — | — |
| kJ | 592 | 569 | — | — | 529 | — | 329 | 418 | 401 | — | — | — | — | — | — | 2 | 9 | 21 | 29 | 11 | 45 | 36 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 10 | 4 | 10 | 0 | 0 | 22 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 10 | 25 | 26 | 4 | 17 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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