Surf Forecasts:
How big are the waves at Praia de Sao Marcos today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 3.5ft (1.0m), 4s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 3.5ft (1.0m), 6s period with ENE swell.
- Evening surf: Evening surf (21 Sep, local time) - 3ft (0.9m), 5s period with NE swell.
The current surf forecast for Praia de Sao Marcos at 1AM is: 0.8m 6s primary swell from a Northeast direction and 0.1m 11s secondary swell from a Northeast direction (forecast issued at 08:00pm September 20). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3.5ft (1.0m) | 4s |
| Afternoon (21 Sep) | 3.5ft (1.0m) | 6s |
| Evening (21 Sep) | 3ft (0.9m) | 5s |
Table - waves today at Praia de Sao Marcos. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Mon morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | ||||||||||||||||
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) | NE 6 | NE 6 | NE 6 | NE 6 | NE 4 | ENE 4 | ENE 5 | ENE 6 | NE 6 | NE 5 | NE 4 | NE 5 | NE 5 | ENE 5 | ENE 5 | ENE 5 | NE 5 | NE 5 |
Wave Graph  | ||||||||||||||||||
 kJ | 75 | 64 | 42 | 36 | 27 | 39 | 64 | 63 | 66 | 37 | 36 | 41 | 51 | 72 | 77 | 75 | 55 | 38 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:42AM4.53m | 3:31PM4.61m | 3:53AM4.78m | 4:30PM4.93m | ||||||||||||||
Low Tide | 8:10PM2.47m | 8:54AM2.19m | 9:29PM2.29m | 10:02AM1.92m | ||||||||||||||
 | | | |  | | | | | | | |  |  | | | | | |
 | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 26 | 25 | 27 | 29 | 29 | 27 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 26 | 26 |
Feels °C | 26 | 27 | 28 | 28 | 26 | 28 | 29 | 29 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | N 11 | N 11 | NE 11 | NE 11 | NE 11 | NE 11 | — | NE 10 | — | — | — | — | N 10 | N 10 | — | — | — | — |
| kJ | 3 | 2 | 5 | 5 | 5 | 5 | — | 4 | — | — | — | — | 2 | 2 | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | N 11 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | NE 6 | NE 4 | ENE 4 | ENE 5 | ENE 6 | NE 6 | NE 5 | NE 4 | NE 5 | NE 5 | ENE 5 | ENE 5 | ENE 5 | NE 5 | NE 5 |
| kJ | 75 | 64 | 42 | 36 | 27 | 39 | 64 | 63 | 66 | 37 | 36 | 41 | 51 | 72 | 77 | 75 | 55 | 38 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 1963 | 1963 | 1963 | 1238 | 1236 | 1328 | 1963 | 1974 | 1974 | 1963 | 1430 | 1974 | 1329 | 1329 | 1974 | 2317 | 2271 | 2041 |
Best forecast wave conditions in Maranhão | ||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||
Header Global | ||||||||||||||||||
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