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Surf Forecasts:
Tramandai surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 8 am Thursday 18 Sep 2025 -03
How big are the waves at Tramandai today?
The current surf forecast for Tramandai at 12PM is: 2.2m 9s primary swell from a East-northeast direction and 0.9m 12s secondary swell from a Southeast direction (forecast issued at 08:00am September 18). An open ocean swell of 0.1m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 6ft (1.9m) | 9s |
| Afternoon (18 Sep) | 8ft (2.4m) | 6s |
| Evening (18 Sep) | 8ft (2.5m) | 7s |
Table - waves today at Tramandai. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 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 | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 579 | 606 | 804 | 454 | 483 | 607 | 757 | 632 | 551 | 619 | 541 | 524 | 349 | 341 | 286 | 238 | 197 | 197 | 167 | 167 | 171 | 176 | 347 | 523 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross | cross | glass | cross | glass | cross- on | cross- on | on | cross- off | cross- on | cross- on | cross |
High Tide / height (m) | 2:16PM 0.52 | 8:48PM 0.33 | 2:56PM 0.47 | 10:26PM 0.38 | 3:35PM 0.41 | 11:21PM 0.44 | ||||||||||||||||||
Low Tide / height (m) | 5:29AM 0.03 | 6:45PM 0.31 | 6:20AM -0.01 | 7:03PM 0.27 | 7:03AM -0.02 | 7:32PM 0.23 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | 6:15 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:14 | - | - | - | - | - | - | - | 6:14 | - | - | - | - | - | - | - | 6:15 | - | - | - |
 |  | | | | |  | | | | |  | | | | |  | |  | |  |  |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 6 | 3 | 1 |
| Temp. °C | 17 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 19 | 21 | 22 | 20 | 20 | 22 | 21 | 21 | 22 | 23 | 22 | 21 | 19 | 18 | 19 |
| Feels °C (?) | 14 | 15 | 16 | 15 | 14 | 14 | 15 | 14 | 14 | 17 | 20 | 22 | 20 | 20 | 24 | 22 | 23 | 23 | 23 | 23 | 22 | 20 | 16 | 18 |
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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 Grande Do Sul
Continuing clean conditions at Tramandai (light winds from the NNE at Nova Hartz wx 93 km from Tramandai). 2.0m 9s swell from the ENE with a 0.9m 12s groundswell from the SE. 2 swells combining so expect closeout sets.
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