
Surf Forecasts:
How big are the waves at Lopes Mendes (Ilha Grande) today (13 Sep):
- Afternoon surf: Afternoon surf (13 Sep, local time) - 4ft (1.2m), 8s period with SSW swell.
- Evening surf: Evening surf (13 Sep, local time) - 4.5ft (1.4m), 8s period with S swell.
The current surf forecast for Lopes Mendes (Ilha Grande) at 9PM is: 1.4m 8s primary swell from a South direction (forecast issued at 02:00pm September 13). An open ocean swell of 0.5m 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 (13 Sep) | - | - |
| Afternoon (13 Sep) | 4ft (1.2m) | 8s |
| Evening (13 Sep) | 4.5ft (1.4m) | 8s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 43mm), heaviest during Mon night. Warm (max 20°C on Sun afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | ||||||||||||||||||
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 | |
Wave Height (m) Direction Period (s) | SSW 7 | SSW 8 | S 8 | S 8 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SE 9 | SE 8 | S 12 | S 11 | S 11 | S 11 | S 10 | S 10 | SSW 10 | SSW 9 |
Wave Graph | ||||||||||||||||||||
99 | 187 | 219 | 247 | 198 | 163 | 167 | 167 | 157 | 199 | 221 | 176 | 134 | 191 | 188 | 181 | 122 | 154 | 230 | 220 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | off | off | glassy | cross-off | glassy | on | on | on | on | on | on |
High Tide | 3:27PM1.07m | 3:41AM1.18m | 3:50PM1.04m | 4:14AM1.10m | 4:14PM0.99m | |||||||||||||||
Low Tide | 10:10AM0.12m | 10:10PM0.19m | 10:38AM0.23m | 10:33PM0.20m | 11:03AM0.35m | |||||||||||||||
— | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | |
— | 5:49 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | |
mm | 1 | — | 2 | 1 | — | — | — | 2 | 3 | 1 | 2 | 6 | 5 | — | — | — | — | 1 | 2 | 4 |
Temp °C | 20 | 20 | 19 | 19 | 19 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 18 |
Feels °C | 21 | 20 | 18 | 18 | 18 | 17 | 20 | 20 | 19 | 20 | 19 | 22 | 18 | 23 | 17 | 18 | 17 | 17 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 8 | S 8 | S 8 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SE 9 | SE 8 | SE 7 | SE 7 | SE 7 | SE 8 | S 10 | S 10 | SSW 10 | SSW 9 |
99 | 187 | 219 | 247 | 198 | 163 | 167 | 167 | 157 | 199 | 221 | 176 | 112 | 121 | 105 | 133 | 122 | 154 | 230 | 220 | |
Swell 2 Height (m) Direction Period (s) | ESE 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 8 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | ESE 8 | ESE 7 | ESE 7 | ESE 7 |
23 | 39 | 39 | 37 | 36 | 36 | 36 | 36 | 36 | 39 | 102 | 102 | 134 | 191 | 188 | 181 | 75 | 56 | 65 | 51 | |
Swell 3 Height (m) Direction Period (s) | SSW 9 | SSW 9 | S 15 | S 11 | S 14 | S 14 | SSW 7 | S 13 | S 13 | E 8 | SSW 8 | SSW 7 | SSW 8 | ESE 8 | ESE 8 | ESE 9 | SSE 8 | SSE 8 | SSE 9 | SE 9 |
29 | 8 | 4 | 9 | 16 | 16 | 21 | 55 | 55 | 36 | 33 | 21 | 35 | 22 | 20 | 25 | 51 | 40 | 50 | 37 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 8 | — | E 5 | E 5 | — | — | — | — | SW 3 | SW 4 | SW 4 | SW 5 | — |
— | — | — | — | — | — | — | 89 | — | 28 | 41 | — | — | — | — | 5 | 12 | 21 | 25 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 59 | 58 | 59 | 59 | 58 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 58 | 0 | 65 | 20 | 97 | 90 | 20 | 65 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||
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)



