Surf Forecasts:
How big are the waves at Maresias today (18 Sep):
- Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.1m), 10s period with S swell.
The current surf forecast for Maresias at 12AM is: 0.8m 11s primary swell from a South direction and 0.9m 9s secondary swell from a South direction (forecast issued at 08:00pm September 17). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | - | - |
| Afternoon (18 Sep) | - | - |
| Evening (18 Sep) | 3.5ft (1.1m) | 10s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 29°C on Sun afternoon, min 18°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | ||||||||||||||||
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 10 | S 10 | S 11 | S 9 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 325 | 219 | 157 | 126 | 287 | 282 | 272 | 212 | 162 | 159 | 123 | 123 | 90 | 87 | 85 | 61 | 60 | 41 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:53PM0.86m | 6:05AM0.78m | 5:21PM0.77m | 7:39AM0.68m | 12:29PM0.76m | 6:11PM0.68m | ||||||||||||
Low Tide | 11:10PM0.34m | 10:06AM0.63m | 1:48AM0.44m | 8:45AM0.68m | 4:18PM0.66m | |||||||||||||
 |  | | |  | | | | | | | | | | | | |  | |
 | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 18 | 18 | 18 | 18 | 18 | 20 | 23 | 22 | 20 | 19 | 19 | 19 | 19 | 20 | 23 | 22 | 20 | 20 |
Feels °C | 18 | 18 | 19 | 19 | 19 | 21 | 24 | 22 | 21 | 19 | 20 | 20 | 20 | 21 | 23 | 22 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | S 9 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 |
| kJ | 325 | 219 | 123 | 126 | 287 | 282 | 272 | 212 | 162 | 159 | 123 | 123 | 90 | 87 | 85 | 61 | 60 | 41 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | S 12 | S 11 | S 11 | ESE 10 | ESE 9 | — | — | — | — | — | — | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 |
| kJ | 51 | 100 | 157 | 118 | 31 | 29 | — | — | — | — | — | — | 5 | 4 | 4 | 14 | 31 | 29 |
Swell 3 Height (m) Direction Period (s) | SE 8 | ESE 10 | ESE 10 | ESE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 9 |
| kJ | 2 | 38 | 32 | 37 | — | — | — | — | — | — | — | — | — | — | — | — | — | 28 |
Wind waves Height (m) Direction Period (s) | E 4 | E 5 | E 5 | E 5 | E 5 | E 5 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 |
| kJ | 47 | 41 | 54 | 75 | 65 | 70 | 139 | 243 | 356 | 401 | 363 | 337 | 321 | 311 | 358 | 408 | 521 | 583 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 0 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||
Header Global | ||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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