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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 am Sunday 19 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
24.0° C
(Which is 1.1°C colder than average 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 2PM is: 0.6m 10s primary swell from a Southeast direction and 0.5m 9s secondary swell from a South direction, 0.6m 4s secondary swell from a Southwest direction (forecast issued at 08:00am April 19). The wind direction is predicted to be onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Apr) | 2.5ft (0.7m) | 10s |
| Afternoon (19 Apr) | 2ft (0.6m) | 10s |
| Evening (19 Apr) | 2ft (0.6m) | 9s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 19 | Monday 20 | Tuesday 21 | Wed 22 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 81 | 90 | 73 | 74 | 74 | 71 | 130 | 179 | 188 | 180 | 180 | 180 | 176 | 164 | 153 | 140 | 131 | 120 | 122 | 120 | 117 | 70 | 113 | 88 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross | cross | cross | on | cross- on | cross- on | glass | cross- off | cross- off |
High Tide / height (m) | 3:10AM 1.01 | 3:49PM 1.16 | 3:36AM 0.96 | 4:30PM 1.06 | 4:05AM 0.91 | 5:17PM 0.94 | ||||||||||||||||||
Low Tide / height (m) | 10:15AM 0.09 | 11:04PM 0.35 | 10:57AM 0.13 | 11:56PM 0.49 | 11:48AM 0.18 | 12:59AM 0.61 | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wed 22 | |||||||||||||||||||||
| Sunrise | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:38 | - | - | - | - | - | - | - | 5:38 | - | - | - | - | - | - | - | 5:37 | - | - | - | - |
 |  | | | | | | | | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 23 | 24 | 23 | 23 | 22 | 21 | 21 | 23 | 23 | 23 | 23 | 22 | 21 | 21 |
| Feels °C (?) | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 22 | 21 | 21 | 23 | 23 | 23 | 24 | 24 | 22 | 22 |
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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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