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Lopes Mendes (Ilha Grande) Surf Forecast
/ Rio de Janeiro (47 surf breaks) /
Surf Forecasts:
Lopes Mendes (Ilha Grande) surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 8 pm Tuesday 28 Apr 2026 -03Forecast update in hr min s Forecast update imminent
Lopes Mendes (Ilha Grande) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lopes Mendes (Ilha Grande) sea temperature is
24.4° C
(Which is normal for this time of year)How big are the waves at Lopes Mendes (Ilha Grande) today?
The current surf forecast for Lopes Mendes (Ilha Grande) at 3AM is: 1.7m 12s primary swell from a South direction and 0.5m 8s secondary swell from a East-southeast direction (forecast issued at 08:00pm April 28). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Apr) | 4.5ft (1.4m) | 12s |
| Afternoon (29 Apr) | 6ft (1.8m) | 14s |
| Evening (29 Apr) | 5.5ft (1.7m) | 13s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Wed morning, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 1 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SSW 11 | S 10 | S 13 | S 12 | S 12 | SSW 12 | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | |
415 | 620 | 1070 | 855 | 723 | 480 | 598 | 1208 | 1247 | 987 | 851 | 683 | 565 | 472 | 464 | 418 | 344 | 338 | 332 | 223 | 206 | 161 | 158 | 158 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | cross-off | off | glassy | cross | cross-on | glassy | glassy | on | cross-on | on | on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 1:13AM1.01m | 1:15PM1.09m | 1:31AM1.03m | 1:47PM1.13m | 1:53AM1.04m | 2:20PM1.15m | ||||||||||||||||||
Low Tide | 7:22PM0.15m | 7:36AM0.23m | 7:58PM0.16m | 8:07AM0.16m | 8:32PM0.19m | 8:36AM0.12m | ||||||||||||||||||
 |  |  | | |  | | | | | | | |  | | | |  |  | | |  | | | |
 | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 | — | — | — |
 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 |
1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 |
27 | 28 | 28 | 28 | 27 | 29 | 29 | 29 | 29 | 28 | 26 | 26 | 26 | 28 | 27 | 26 | 26 | 25 | 25 | 26 | 25 | 27 | 26 | 25 | |
Swell 1 Height (m) Direction Period (s) | SSW 11 | S 10 | S 13 | S 12 | S 12 | SSW 12 | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 |
 kJ | 415 | 620 | 1070 | 855 | 723 | 480 | 598 | 1208 | 1247 | 987 | 851 | 683 | 565 | 472 | 464 | 418 | 344 | 338 | 332 | 223 | 206 | 161 | 158 | 158 |
Swell 2 Height (m) Direction Period (s) | SE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | S 16 | SSW 11 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 |
| kJ | 21 | 32 | 43 | 40 | 47 | 391 | 359 | 122 | 83 | 142 | 133 | 119 | 110 | 118 | 85 | 102 | 104 | 108 | 80 | 27 | 28 | 21 | 20 | 15 |
Swell 3 Height (m) Direction Period (s) | E 8 | ESE 4 | S 9 | S 16 | S 18 | SE 6 | SE 6 | — | — | SE 5 | SE 15 | SSE 15 | SSE 15 | SSE 14 | E 7 | E 7 | SSE 13 | SE 13 | S 5 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 10 | 6 | 2 | 5 | 55 | 29 | 22 | — | — | 13 | 8 | 21 | 21 | 20 | 23 | 23 | 18 | 7 | 13 | 78 | 78 | 77 | 77 | 55 |
Wind waves Height (m) Direction Period (s) | ESE 4 | E 7 | — | — | — | — | — | SE 6 | SE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 40 | — | — | — | — | — | 25 | 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 58 | 58 | 0 | 0 | 20 | 20 | 20 | 20 | 97 | 59 | 59 | 59 | 0 | 0 | 0 | 0 | 0 | 59 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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