Surf Forecasts:
How big are the waves at Maresias today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 1.5ft (0.4m), 12s 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 4PM is: 0.3m 12s primary swell from a South direction (forecast issued at 08:00am September 20). An open ocean swell of 1.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 1.5ft (0.4m) | 12s |
| 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 15mm), heaviest on Tue night. Warm (max 35°C on Mon morning, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||
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 12 | 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 | W 4 | WSW 4 | SW 4 | SW 5 | SSW 6 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 51 | 47 | 71 | 47 | 25 | 24 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 19 | 25 | 29 | 28 | 58 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross | cross-on | cross-on | cross-off | glassy |
High Tide | 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 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 |
Temp °C | 20 | 22 | 26 | 26 | 23 | 23 | 25 | 24 | 25 | 31 | 35 | 35 | 30 | 29 | 29 | 28 | 21 | 22 | 23 | 21 | 21 | 20 |
Feels °C | 23 | 25 | 27 | 27 | 23 | 23 | 26 | 24 | 25 | 32 | 35 | 36 | 30 | 28 | 29 | 27 | 23 | 24 | 25 | 22 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | S 12 | S 12 | S 12 | S 12 | S 12 | E 8 | E 8 | E 8 | E 8 | S 11 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 |
| kJ | 481 | 393 | 47 | 47 | 25 | 24 | 11 | 364 | 343 | 260 | 224 | 9 | 182 | 149 | 124 | 100 | 102 | 104 | 108 | 140 | 143 | 146 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 12 | S 12 | — | — | E 14 | — | S 12 | S 12 | S 11 | S 11 | — | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 12 | SSW 6 |
| kJ | 25 | 47 | 71 | — | — | 4 | — | 11 | 11 | 10 | 9 | — | 9 | 9 | 8 | 8 | 8 | 2 | 2 | 2 | 3 | 58 |
Swell 3 Height (m) Direction Period (s) | S 13 | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | E 15 | — | S 12 | S 12 | S 12 | S 12 | S 9 | S 12 |
| kJ | 51 | 14 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | 3 | 3 | 3 | 3 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | E 8 | — | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | E 8 | E 8 | NNE 3 | NNW 3 | N 4 | NNW 4 | W 4 | WSW 4 | SW 4 | SW 5 | — |
| kJ | 866 | — | 343 | 331 | 331 | 401 | 337 | 588 | — | — | — | 217 | 251 | 3 | 3 | 9 | 15 | 19 | 25 | 29 | 28 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 25 | 13 | 26 | 66 | 5 | 0 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||
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