Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Lopes Mendes (Ilha Grande) surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 2 am Saturday 27 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
26.2° C
(Which is 1.2°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 7AM is: 0.1m 10s primary swell from a South direction and 0.1m 8s secondary swell from a South direction (forecast issued at 02:00am December 27). An open ocean swell of 0.5m 7s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Dec) | 0.5ft (0.1m) | 12s |
| Afternoon (27 Dec) | 0.5ft (0.1m) | 11s |
| Evening (27 Dec) | 0.5ft (0.1m) | 11s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 27 | Sunday 28 | Monday 29 | ||||||||||||||||||||||
| 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) (?) | 10 | 10 | 10 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 8 | 18 | 17 | 27 | 21 | 37 | 56 | 77 | 73 | 68 | 65 | 71 | 74 | 52 | 52 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | off | glass | cross- on | cross- on | cross- on | glass | off | glass | off | glass | on | cross- on | cross- on | glass | glass | glass | glass | glass | glass | cross- on | on | glass | cross- off |
High Tide / height (m) | 7:39AM 0.86 | 7:31PM 0.88 | 9:09AM 0.81 | 9:18PM 0.85 | 11:13AM 0.80 | |||||||||||||||||||
Low Tide / height (m) | 2:15AM 0.25 | 2:53PM 0.47 | 3:26AM 0.30 | 4:03PM 0.43 | 4:43AM 0.33 | 5:11PM 0.36 | ||||||||||||||||||
Saturday 27 | Sunday 28 | Monday 29 | ||||||||||||||||||||||
| Sunrise | - | - | 5:09 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:44 | - | - | - | - | - | - | - | 6:44 | - | - | - | - | - | - | - | 6:44 | - |
 | |  | | | | | | | | | | | | | | | | | | |  |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 2 |
| Temp. °C | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 24 | 24 |
| Feels °C (?) | 30 | 29 | 29 | 28 | 28 | 29 | 30 | 28 | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 27 | 27 | 28 | 27 |
- 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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