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Grumari Surf Forecast
/ Rio de Janeiro (47 surf breaks) /
Grumari surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 2 am Saturday 02 Aug 2025 -03
How big are the waves at Grumari today?
The current surf forecast for Grumari at 6AM is: 1.4m 11s primary swell from a South-southeast direction and 1.1m 5s secondary swell from a East direction (forecast issued at 02:00am August 02). An open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Aug) | 4.5ft (1.3m) | 11s |
| Afternoon (02 Aug) | 3.5ft (1.1m) | 10s |
| Evening (02 Aug) | 3ft (0.9m) | 10s |
Table - waves today at Grumari. (Swell directed towards the surf break)
Saturday 02 | Sunday 03 | Monday 04 | ||||||||||||||||||||||
| 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) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 659 | 584 | 511 | 466 | 373 | 283 | 322 | 188 | 151 | 128 | 125 | 86 | 87 | 82 | 59 | 59 | 48 | 47 | 22 | 34 | 22 | 22 | 27 | 22 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross | glass | glass |
High Tide / height (m) | 8:27AM 0.78 | 8:15PM 0.73 | 11:44AM 0.80 | 10:50PM 0.71 | 12:51PM 0.89 | |||||||||||||||||||
Low Tide / height (m) | 2:33AM 0.43 | 3:35PM 0.56 | 4:04AM 0.42 | 5:25PM 0.56 | 5:32AM 0.36 | 6:42PM 0.50 | ||||||||||||||||||
Saturday 02 | Sunday 03 | Monday 04 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:31 | - | - | - | - | - | - | - | 5:32 | - | - | - | - | - | - | - | 5:32 | - | - |
 | | |  | | | | | | | | | | | | | | | | |  | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 17 | 17 | 18 | 23 | 25 | 22 | 22 | 21 | 19 | 18 | 19 | 25 | 28 | 25 | 25 | 23 | 21 | 20 | 21 | 27 | 29 | 24 | 23 |
| Feels °C (?) | 17 | 16 | 16 | 17 | 22 | 22 | 20 | 22 | 20 | 18 | 16 | 18 | 24 | 25 | 23 | 24 | 22 | 19 | 17 | 18 | 25 | 27 | 24 | 23 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Rio de Janeiro
The wind is still cross-off at Grumari (light winds from the N at Marambaia (Rio de Janeiro) 8 km from Grumari). A 1.4m groundswell from the SSE
2 h 48 min ago
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