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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 Thursday 16 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 3PM is: 1.1m 8s primary swell from a Southeast direction and 0.5m 13s secondary swell from a South-southeast direction (forecast issued at 08:00am April 16). 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
Thursday 16 | Friday 17 | Saturday 18 | Sun 19 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 7 | 7 | 12 | 12 | 12 | 12 | 12 | 8 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 102 | 99 | 96 | 125 | 121 | 121 | 113 | 111 | 109 | 106 | 106 | 100 | 126 | 123 | 121 | 153 | 147 | 108 | 148 | 138 | 112 | 97 | 81 | 81 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | cross- off | cross | cross- off | off | off | off | off | off | cross- off | cross- off | cross- off | off | off | off | off | cross- off | cross- off | cross | on | glass | off | cross- on |
High Tide / height (m) | 2:02PM 1.22 | 2:25AM 1.10 | 2:35PM 1.24 | 2:47AM 1.05 | 3:11PM 1.23 | |||||||||||||||||||
Low Tide / height (m) | 8:25AM 0.14 | 8:51PM 0.00 | 9:01AM 0.10 | 9:34PM 0.08 | 9:37AM 0.08 | 10:18PM 0.20 | ||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sun 19 | |||||||||||||||||||||
| Sunrise | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:42 | - | - | - | - | - | - | - | 5:40 | - | - | - | - | - | - | - | 5:39 | - | - | - | - |
 |  |  | |  |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 22 | 23 | 24 | 23 | 23 | 22 | 22 | 22 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 25 | 25 | 25 | 24 | 23 | 23 | 23 |
| Feels °C (?) | 23 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 27 | 26 | 27 | 24 | 26 | 25 | 25 |
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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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