Surf Forecasts:
How big are the waves at Lopes Mendes (Ilha Grande) today (17 Sep):
- Afternoon surf: Afternoon surf (17 Sep, local time) - 5ft (1.6m), 12s period with S swell.
- Evening surf: Evening surf (17 Sep, local time) - 4.5ft (1.4m), 10s period with S swell.
The current surf forecast for Lopes Mendes (Ilha Grande) at 7PM is: 1.5m 11s primary swell from a South direction and 0.5m 9s secondary swell from a East-southeast direction (forecast issued at 02:00pm September 17). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | - | - |
| Afternoon (17 Sep) | 5ft (1.6m) | 12s |
| Evening (17 Sep) | 4.5ft (1.4m) | 10s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 18°C on Thu afternoon). Winds decreasing (fresh winds from the E on Fri afternoon, light winds from the NNW by Sat night). | ||||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | ||||||||||||||||||
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) | S 10 | S 12 | S 11 | S 10 | S 10 | S 10 | S 11 | S 11 | S 11 | S 11 | S 10 | ESE 6 | S 10 | S 10 | S 10 | S 10 | ESE 7 | S 9 | S 9 | S 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 354 | 678 | 599 | 394 | 279 | 333 | 189 | 152 | 284 | 274 | 264 | 310 | 198 | 156 | 156 | 121 | 206 | 85 | 61 | 60 |
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 | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:05PM0.84m | 6:19AM0.77m | 11:30AM0.67m | 5:35PM0.76m | 12:03PM0.77m | 6:33PM0.66m | ||||||||||||||
Low Tide | 12:01PM0.57m | 00:20AM0.36m | 10:03AM0.67m | 1:55PM0.65m | 2:20AM0.42m | 4:17PM0.64m | ||||||||||||||
 | |  | | | | |  | | | |  | |  | | |  | | | | |
 | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | 5:50 | — | — | — | — | — | — | — | 5:51 | — | — | — | — | — | — | — | 5:51 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 20 | 22 | 22 | 22 | 21 |
Feels °C | 17 | 17 | 15 | 15 | 15 | 16 | 17 | 18 | 18 | 18 | 17 | 17 | 18 | 17 | 17 | 18 | 19 | 19 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 12 | S 11 | S 10 | S 10 | S 10 | S 11 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 |
| kJ | 354 | 678 | 599 | 394 | 279 | 333 | 189 | 127 | 284 | 274 | 264 | 206 | 198 | 156 | 156 | 121 | 89 | 85 | 61 | 60 |
Swell 2 Height (m) Direction Period (s) | S 13 | SE 8 | ESE 9 | ESE 9 | S 12 | ESE 9 | S 9 | S 11 | ESE 9 | — | — | — | — | — | S 16 | S 15 | S 15 | S 14 | S 14 | S 13 |
| kJ | 215 | 3 | 46 | 45 | 138 | 47 | 96 | 152 | 29 | — | — | — | — | — | 5 | 5 | 4 | 4 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | ESE 10 | — | — | S 12 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | — | — | — | — | — | — | — | — | S 14 | — | — | S 13 |
| kJ | 55 | — | — | 74 | 48 | 47 | 31 | 28 | — | — | — | — | — | — | — | — | 4 | — | — | 55 |
Wind waves Height (m) Direction Period (s) | E 10 | ESE 9 | ESE 4 | ESE 4 | E 4 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 7 | E 7 | E 7 | E 7 |
| kJ | 104 | 111 | 38 | 32 | 33 | 40 | 45 | 67 | 86 | 131 | 237 | 310 | 239 | 213 | 188 | 170 | 206 | 355 | 453 | 452 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 58 | 58 | 59 | 58 | 0 | 0 | 58 | 58 | 58 | 59 | 59 | 59 | 58 | 58 | 0 | 0 | 59 | 77 | 59 | 58 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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