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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 Wednesday 15 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
24.5° C
(Which is slightly cooler than normal)How big are the waves at Lopes Mendes (Ilha Grande) today?
The current surf forecast for Lopes Mendes (Ilha Grande) at 3AM is: 1.0m 8s primary swell from a Southeast direction and 0.5m 14s secondary swell from a South-southeast direction (forecast issued at 08:00pm April 15). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Apr) | 3ft (0.9m) | 8s |
| Afternoon (16 Apr) | 3.5ft (1.1m) | 8s |
| Evening (16 Apr) | 3.5ft (1.1m) | 7s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 12 | 12 | 12 | 12 | 12 | 8 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 114 | 125 | 122 | 119 | 102 | 99 | 96 | 125 | 141 | 121 | 113 | 111 | 109 | 106 | 106 | 100 | 126 | 123 | 121 | 153 | 147 | 108 | 123 | 104 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | cross | cross | glass | glass | cross | cross | cross- off | off | off | off | off | off | cross- off | cross- off | cross- off | off | off | off | off | glass | cross- on | cross- on |
High Tide / height (m) | ||||||||||||||||||||||||
Low Tide / height (m) | ||||||||||||||||||||||||
Wed 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:42 | - | - | - | - | - | - | - | 5:40 | - | - | - | - | - | - | - | 5:39 |
 | | | | |  | | |  | | | | | | | | | | | | | |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 24 | 23 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 25 | 25 | 25 |
| Feels °C (?) | 25 | 26 | 23 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 23 | 25 | 25 | 25 | 27 | 25 | 25 | 26 | 25 | 27 | 27 | 26 |
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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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