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Surf Forecasts:
Lopes Mendes (Ilha Grande) surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 8 pm Friday 19 Dec 2025 -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
25.9° C
(Which is 1.3°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 11PM is: 0.6m 8s primary swell from a South-southwest direction and 0.6m 6s secondary swell from a Southeast direction (forecast issued at 08:00pm December 19). The wind direction is predicted to be glassy.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Dec) | - | - |
| Afternoon (19 Dec) | - | - |
| Evening (19 Dec) | 1.5ft (0.5m) | 10s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| 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) (?) | 9 | 10 | 8 | 8 | 10 | 10 | 9 | 9 | 9 | 9 | 5 | 5 | 6 | 13 | 12 | 12 | 12 | 6 | 11 | 11 | 11 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 99 | 55 | 54 | 40 | 74 | 52 | 48 | 26 | 26 | 27 | 27 | 35 | 43 | 31 | 51 | 75 | 73 | 212 | 63 | 63 | 91 | 54 | 53 | 71 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- on | glass | glass | glass | cross- on | cross | cross- off | cross- off | off | cross- off | glass | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | cross- off | cross- off |
High Tide / height (m) | 2:54AM 1.09 | 2:28PM 0.99 | 3:25AM 1.08 | 2:59PM 1.02 | 3:57AM 1.07 | |||||||||||||||||||
Low Tide / height (m) | 8:47PM 0.06 | 9:23AM 0.34 | 9:25PM 0.04 | 9:58AM 0.35 | 10:04PM 0.04 | 10:35AM 0.37 | ||||||||||||||||||
Fri 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:05 | - | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - | 5:07 | - | - | - |
| Sunset | 6:39 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:40 | - | - | - | - | - | - | - |
 |  |  |  | |  |  | | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 24 | 24 | 23 | 23 | 26 | 27 | 26 |
| Feels °C (?) | 26 | 27 | 26 | 26 | 27 | 28 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 24 | 26 | 24 | 24 | 25 | 23 | 23 | 26 | 26 | 24 |
- Map Icons:
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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