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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 2 pm Monday 13 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
25.2° 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 8PM is: 0.5m 18s primary swell from a South direction and 0.9m 10s secondary swell from a South-southeast direction (forecast issued at 02:00pm April 13). An open ocean swell of 0.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Apr) | - | - |
| Afternoon (13 Apr) | 3.5ft (1.0m) | 10s |
| Evening (13 Apr) | 1.5ft (0.5m) | 18s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 19 | 10 | 17 | 10 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 246 | 222 | 178 | 160 | 220 | 122 | 183 | 157 | 150 | 129 | 123 | 121 | 116 | 102 | 100 | 100 | 117 | 114 | 114 | 112 | 119 | 105 | 102 | 99 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | off | glass | glass | cross | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- on | cross- on | cross | cross- off | off | cross- off | cross- off | cross- off | off |
High Tide / height (m) | ||||||||||||||||||||||||
Low Tide / height (m) | ||||||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 |
| Sunset | - | 5:45 | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - |
 | |  |  | |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 21 | 21 | 22 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 22 |
| Feels °C (?) | 24 | 23 | 24 | 23 | 24 | 24 | 25 | 25 | 24 | 23 | 23 | 25 | 23 | 22 | 22 | 23 | 25 | 23 | 25 | 24 | 24 | 22 | 22 | 23 |
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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