Surf Forecasts:
How big are the waves at Maresias today (21 Aug):
- Afternoon surf: Afternoon surf (21 Aug, local time) - 4.5ft (1.4m), 6s period with SSW swell.
- Evening surf: Evening surf (21 Aug, local time) - 6ft (1.8m), 8s period with SSW swell.
The current surf forecast for Maresias at 9PM is: 1.8m 8s primary swell from a South-southwest direction and 1.6m 8s secondary swell from a South-southwest direction (forecast issued at 02:00pm August 21). An open ocean swell of 0.7m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | - | - |
| Afternoon (21 Aug) | 4.5ft (1.4m) | 6s |
| Evening (21 Aug) | 6ft (1.8m) | 8s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sun night. Warm (max 22°C on Sun morning, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||
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) | SSW 4 | SSW 6 | SSW 7 | SSW 8 | SSW 7 | S 8 | S 10 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 11 | S 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 46 | 135 | 262 | 382 | 222 | 245 | 753 | 813 | 709 | 656 | 586 | 592 | 514 | 494 | 482 | 415 | 424 | 459 | 607 | 846 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | glassy | on | glassy | on | on | on | cross-on | cross | cross-off | cross-off | cross-off | glassy | on | on | cross-on | cross-on |
High Tide | 12:42PM0.74m | 6:53PM0.67m | 1:01PM0.85m | 00:16AM0.69m | 1:23PM0.94m | |||||||||||||||
Low Tide | 4:39PM0.65m | 4:37AM0.40m | 6:14PM0.57m | 5:53AM0.31m | 6:52PM0.48m | |||||||||||||||
 |  |  | | | | | | | |  | | | | | | | |  | | |
 | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — |
 | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:47 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 |
Temp °C | 21 | 20 | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 18 | 18 | 17 | 17 | 17 | 17 | 19 | 22 | 20 | 19 | 18 |
Feels °C | 20 | 18 | 18 | 18 | 19 | 18 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 18 | 20 | 22 | 21 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 8 | E 8 | SSW 8 | SSW 7 | S 8 | S 10 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 11 | S 12 |
| kJ | 88 | 71 | 74 | 276 | 222 | 245 | 753 | 813 | 709 | 656 | 586 | 592 | 514 | 494 | 482 | 415 | 424 | 459 | 607 | 846 |
Swell 2 Height (m) Direction Period (s) | S 15 | SSW 8 | S 15 | E 8 | E 8 | S 10 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 7 |
| kJ | 4 | 14 | 4 | 58 | 60 | 162 | 31 | 20 | 20 | 9 | 9 | 9 | 4 | 9 | 10 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | S 15 | S 14 | S 14 | S 12 | E 8 | — | — | — | — | — | — | — | — | — | — | — | E 8 | E 8 | — |
| kJ | — | 4 | 4 | 4 | 10 | 44 | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 6 | SSW 7 | SSW 8 | — | — | — | — | — | — | — | — | — | — | E 7 | — | — | ENE 3 | — | ENE 3 |
| kJ | 46 | 135 | 262 | 382 | — | — | — | — | — | — | — | — | — | — | 4 | — | — | 4 | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 462 | 374 | 492 | 13 | 0 | 19 | 0 | 10 | 19 | 19 | 19 | 11 | 0 | 0 | 0 | 0 | 66 | 19 | 19 | 19 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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