Surf Forecasts:
How big are the waves at Maresias today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 2ft (0.6m), 9s period with SW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 5ft (1.5m), 6s period with SSW swell.
- Evening surf: Evening surf (21 Aug, local time) - 5ft (1.6m), 7s period with SSW swell.
The current surf forecast for Maresias at 5AM is: 0.5m 9s primary swell from a South direction (forecast issued at 08:00pm August 20). An open ocean swell of 0.8m 7s is not directed at the surf break, a second open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 2ft (0.6m) | 9s |
| Afternoon (21 Aug) | 5ft (1.5m) | 6s |
| Evening (21 Aug) | 5ft (1.6m) | 7s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sun afternoon. Warm (max 25°C on Thu night, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thu 20 | Friday 21 | Saturday 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) | S 11 | S 10 | SSW 10 | S 10 | S 9 | SW 9 | SSW 5 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 21 | 35 | 33 | 47 | 43 | 64 | 57 | 160 | 219 | 245 | 183 | 198 | 471 | 730 | 804 | 669 | 586 | 580 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | glassy | on | cross-on | cross-on | cross |
High Tide | 6:05PM0.76m | 12:42PM0.74m | 6:53PM0.67m | 1:01PM0.85m | ||||||||||||||
Low Tide | 2:30AM0.44m | 4:39PM0.65m | 4:37AM0.40m | 6:14PM0.57m | ||||||||||||||
 | | |  |  |  | |  | | | | | | | | | | | |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 24 | 24 | 24 | 25 | 25 | 21 | 19 | 19 | 19 | 18 | 18 | 18 | 19 | 20 | 20 | 18 | 17 |
Feels °C | 23 | 22 | 22 | 22 | 23 | 24 | 20 | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | E 7 | E 4 | E 7 | E 7 | E 8 | E 8 | E 8 | SSW 7 | SSW 7 | S 7 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 |
| kJ | 21 | 35 | 23 | 14 | 62 | 88 | 111 | 92 | 74 | 245 | 183 | 198 | 471 | 730 | 804 | 669 | 586 | 580 |
Swell 2 Height (m) Direction Period (s) | SW 5 | SW 5 | SSW 10 | E 7 | S 9 | S 16 | S 15 | S 15 | S 15 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 |
| kJ | 4 | 4 | 33 | 23 | 43 | 5 | 4 | 4 | 4 | 57 | 58 | 43 | 30 | 20 | 19 | 9 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | SSW 5 | S 10 | SW 5 | — | — | — | — | S 14 | S 12 | S 11 | — | — | — | — | — | — |
| kJ | 6 | 5 | 2 | 47 | 1 | — | — | — | — | 4 | 3 | 57 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 4 | — | NW 3 | SW 9 | SSW 5 | SSW 6 | SSW 7 | — | — | — | — | — | — | — | — | — |
| kJ | 64 | 79 | 17 | — | 2 | 64 | 57 | 160 | 219 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 4 | 0 | 4 | 0 | 0 | 41 | 361 | 451 | 492 | 25 | 4 | 17 | 4 | 0 | 19 | 19 | 19 | 11 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||
Header Global | ||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Maresias surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest