Surf Forecasts:
How big are the waves at Maresias today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 1.5ft (0.4m), 10s period with SSE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 1ft (0.3m), 9s period with SSE swell.
- Evening surf: Evening surf (18 Aug, local time) - 0.5ft (0.2m), 11s period with S swell.
The current surf forecast for Maresias at 4AM is: 0.4m 10s primary swell from a South-southeast direction (forecast issued at 08:00pm August 17). An open ocean swell of 1.6m 8s is not directed at the surf break, a second open ocean swell of 2.1m 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 (18 Aug) | 1.5ft (0.4m) | 10s |
| Afternoon (18 Aug) | 1ft (0.3m) | 9s |
| Evening (18 Aug) | 0.5ft (0.2m) | 11s |
Table - waves today at Maresias. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 32°C on Wed morning, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 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 10 | S 10 | SSE 10 | SSE 10 | S 10 | SSE 9 | S 11 | S 11 | S 9 | S 9 | S 10 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 |
Wave Graph  | ||||||||||||||||||
 kJ | 75 | 74 | 51 | 50 | 32 | 31 | 16 | 17 | 9 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | glassy | glassy | cross-on | cross-off | cross-off | off | off | off | glassy | cross-on | glassy | glassy | cross-off |
High Tide | 4:51PM0.96m | 5:11AM1.02m | 5:13PM0.90m | 5:49AM0.90m | 5:37PM0.84m | |||||||||||||
Low Tide | 11:00PM0.30m | 11:31AM0.41m | 11:27PM0.33m | 11:47AM0.52m | ||||||||||||||
 | | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 21 | 21 | 21 | 27 | 29 | 29 | 24 | 24 | 24 | 24 | 24 | 30 | 32 | 31 | 24 | 22 |
Feels °C | 23 | 20 | 22 | 21 | 21 | 29 | 30 | 30 | 25 | 24 | 23 | 23 | 23 | 30 | 31 | 31 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | E 8 | S 10 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 7 | E 7 | E 7 |
| kJ | 233 | 74 | 326 | 334 | 343 | 257 | 217 | 172 | 138 | 135 | 111 | 90 | 88 | 111 | 90 | 88 | 88 | 68 |
Swell 2 Height (m) Direction Period (s) | S 10 | — | S 10 | S 10 | SSE 10 | SSE 10 | S 10 | SSE 9 | SSE 9 | S 11 | S 9 | S 9 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 |
| kJ | 75 | — | 51 | 50 | 32 | 31 | 16 | 17 | 8 | 9 | 7 | 7 | 7 | 2 | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 9 | SE 9 | S 9 | — | S 11 | S 9 | SE 8 | SE 8 | SE 8 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 |
| kJ | — | — | — | — | 2 | 3 | 2 | — | 9 | 6 | 3 | 3 | 3 | 7 | 7 | 7 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 337 | 266 | 464 | 583 | 533 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 19 | 4 | 4 | 4 | 4 | 4 | 4 | 315 | 4 | 4 | 5 |
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)
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Ocean Swells (m)- Wind Speed (km/h)
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