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:
Rio Grande Jetties surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 2 pm Saturday 20 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Rio Grande Jetties surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rio Grande Jetties sea temperature is
22.5° C
(Which is slightly warmer than usual)How big are the waves at Rio Grande Jetties today?
The current surf forecast for Rio Grande Jetties at 11PM is: 0.3m 11s primary swell from a South-southeast direction (forecast issued at 02:00pm December 20). An open ocean swell of 1.8m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Dec) | - | - |
| Afternoon (20 Dec) | 1ft (0.3m) | 10s |
| Evening (20 Dec) | 1ft (0.3m) | 11s |
Table - waves today at Rio Grande Jetties. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||||||
| 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 | 0 AM | 3 AM | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 10 | 11 | 11 | 11 | 11 | 13 | 12 | 8 | 8 | 8 | 8 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 22 | 21 | 24 | 25 | 24 | 23 | 16 | 28 | 169 | 111 | 84 | 86 | 8 | 44 | 28 | 90 | 95 | 80 | 82 | 82 | 61 | 60 | 57 | 54 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross | cross | cross | cross | off | off | off | cross- on | cross | cross | cross- off | cross | cross- off | cross- off | cross- off | off | cross | cross | cross- off | off | off |
High Tide / height (m) | 3:27AM 0.32 | 9:09AM 0.35 | 10:35PM 0.13 | 4:12AM 0.30 | 9:39AM 0.37 | 10:24PM 0.12 | 5:04AM 0.29 | |||||||||||||||||
Low Tide / height (m) | 6:09PM 0.03 | 5:59AM 0.28 | 6:44PM 0.04 | 11:10PM 0.13 | 6:13AM 0.28 | 7:17PM 0.05 | 12:20AM 0.10 | 6:24AM 0.28 | ||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:18 | - |
| Sunset | - | - | 7:32 | - | - | - | - | - | - | - | 7:34 | - | - | - | - | - | - | - | 7:34 | - | - | - | - | - |
 |  | |  |  | |  | |  | | |  | | | | | | |  | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - | - | - | - | - | - | 10 | 1 | 2 | 1 | 2 | - |
| Temp. °C | 25 | 25 | 24 | 22 | 21 | 22 | 22 | 24 | 24 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 25 | 26 | 23 | 22 | 22 | 23 | 23 | 23 |
| Feels °C (?) | 22 | 21 | 20 | 18 | 18 | 20 | 20 | 26 | 25 | 25 | 23 | 21 | 22 | 24 | 24 | 26 | 28 | 28 | 24 | 24 | 24 | 26 | 25 | 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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