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Molhes de Mampituba Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Molhes de Mampituba surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 8 am Thursday 18 Sep 2025 -03
How big are the waves at Molhes de Mampituba today?
The current surf forecast for Molhes de Mampituba at 3PM is: 1.8m 10s primary swell from a East direction and 0.8m 12s secondary swell from a Southeast direction (forecast issued at 08:00am September 18). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 5.5ft (1.7m) | 10s |
| Afternoon (18 Sep) | 6ft (1.8m) | 10s |
| Evening (18 Sep) | 8ft (2.5m) | 7s |
Table - waves today at Molhes de Mampituba. (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 | 10 | 10 | 10 | 10 | 7 | 7 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 495 | 551 | 627 | 618 | 697 | 569 | 542 | 732 | 592 | 675 | 474 | 413 | 466 | 260 | 219 | 187 | 157 | 130 | 130 | 130 | 136 | 169 | 185 | 398 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | glass | glass | cross- off | glass | glass | cross- on | cross- on | cross- off | cross | cross- off | cross- off |
High Tide / height (m) | 2:14PM 0.57 | 9:19PM 0.38 | 2:50PM 0.52 | 10:45PM 0.45 | 3:22PM 0.46 | 11:35PM 0.51 | ||||||||||||||||||
Low Tide / height (m) | 5:32AM 0.04 | 6:37PM 0.33 | 6:23AM -0.01 | 7:04PM 0.28 | 7:07AM -0.03 | 7:35PM 0.24 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | 6:13 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:12 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:13 | - | - | - |
 |  | | | | | |  | | | |  | | | | |  | | |  |  |  |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 5 | 10 | 1 |
| Temp. °C | 16 | 17 | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 18 | 21 | 21 | 20 | 21 | 22 | 22 | 21 | 23 | 23 | 21 | 20 | 19 | 19 | 19 |
| Feels °C (?) | 15 | 16 | 17 | 16 | 17 | 16 | 17 | 17 | 16 | 17 | 19 | 20 | 21 | 22 | 24 | 22 | 22 | 24 | 23 | 22 | 22 | 19 | 17 | 20 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Rio Grande Do Sul
The wind is still cross-on at Molhes de Mampituba (moderate winds from the ENE at Osvaldo Kroeff wx 44 km from Molhes de Mampituba). 1.9m 10s swell from the E with a 0.9m 12s groundswell from the SE. 2 swells combining so expect closeout sets.
44 km away, 1 h 41 min ago
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