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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 21 May 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
23.6° C
(Which is 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 1PM is: 2.3m 15s primary swell from a South direction and 0.6m 4s secondary swell from a South direction (forecast issued at 08:00am May 21). An open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 7ft (2.1m) | 15s |
| Afternoon (21 May) | 8ft (2.5m) | 16s |
| Evening (21 May) | 10ft (3.0m) | 15s |
Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Thu morning. Warm (max 24°C on Sat morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
S 14 | S 15 | S 15 | S 16 | S 16 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | |
1488 | 1869 | 2193 | 2944 | 3434 | 3322 | 3419 | 3104 | 3017 | 2687 | 2565 | 2545 | 2510 | 2310 | 2310 | 2092 | 1914 | 1699 | 1567 | 1107 | 958 | 835 | 723 | 678 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | cross | cross-off | off | off | off | off | off | glassy | on | on | glassy | cross-on | glassy | |
High Tide | 4:33AM0.91m | 6:23PM0.82m | 9:54PM0.82m | 5:22AM0.88m | 10:55PM0.82m | 6:26AM0.83m | 11:31PM0.83m | |||||||||||||||||
Low Tide | 12:51PM0.18m | 8:08PM0.80m | 1:42AM0.64m | 1:57PM0.23m | 2:44AM0.63m | 3:05PM0.27m | ||||||||||||||||||
 |  | | |  | | |  | |  |  | |  | | | |  | | | | | | | | |
 | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | 6:26 |
 | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | 5:19 |
2 | 2 | 2 | 1 | 1 | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 24 | 22 | 21 | 21 | 20 | 20 |
21 | 20 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 21 | 22 | 21 | 20 | 20 | 20 | 21 | 20 | 21 | 26 | 21 | 21 | 24 | 22 | 22 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 15 | S 15 | S 16 | S 16 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 |
 kJ | 1488 | 1869 | 2193 | 2944 | 3434 | 3322 | 3419 | 3104 | 3017 | 2687 | 2565 | 2545 | 2510 | 2310 | 2310 | 2092 | 1914 | 1699 | 1567 | 1107 | 958 | 835 | 723 | 678 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | — | — | — | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | — | — | ESE 6 | ESE 6 | ESE 6 |
| kJ | 5 | 5 | 5 | 5 | — | — | — | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | — | — | 121 | 98 | 80 |
Swell 3 Height (m) Direction Period (s) | E 8 | — | — | — | — | — | — | — | — | — | E 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | S 4 | — | — | — | — | — | — | — | — | — | — | — | ENE 9 | NE 9 | ENE 4 | — | — | ESE 6 | ESE 6 | E 6 | — | — |
| kJ | — | — | 15 | — | — | — | — | — | — | — | — | — | — | — | 15 | 19 | 12 | — | — | 91 | 110 | 148 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 20 | 20 | 20 | 20 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 59 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 58 | 20 | 0 | 20 | 0 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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