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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 am Saturday 21 Feb 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
29.3° C
(Which is 3.2°C warmer than 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 9AM is: 1.0m 9s primary swell from a South direction (forecast issued at 02:00am February 21). An open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Feb) | 3.5ft (1.0m) | 9s |
| Afternoon (21 Feb) | 3ft (0.9m) | 9s |
| Evening (21 Feb) | 2.5ft (0.7m) | 8s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 138 | 169 | 169 | 169 | 135 | 123 | 71 | 69 | 51 | 50 | 92 | 85 | 114 | 132 | 125 | 121 | 121 | 121 | 139 | 147 | 134 | 134 | 140 | 129 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | cross- off | cross | cross | cross- off | cross- off | glass | glass | glass | cross- on | cross- on | cross- on | cross- on | glass | glass | glass | glass | glass | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 4:40AM 1.04 | 4:50PM 1.14 | 5:08AM 0.96 | 5:32PM 1.03 | 5:38AM 0.86 | 6:23PM 0.90 | ||||||||||||||||||
Low Tide / height (m) | 11:35AM 0.27 | 12:12AM 0.26 | 12:16PM 0.32 | 1:08AM 0.42 | 1:13PM 0.37 | |||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| Sunrise | - | - | 5:47 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - |
 | |  |  | |  | |  | | | | | | | | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | 2 | 2 | 3 | 3 | 1 | - | - | 1 | 1 | 2 | 2 | - | - | - | - | - | 1 | 1 | 4 |
| Temp. °C | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 |
| Feels °C (?) | 30 | 28 | 28 | 30 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 29 | 28 | 29 | 30 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 |
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