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Hermenegildo Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Hermenegildo surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 2 am Wednesday 20 May 2026 -03Forecast update in hr min s Forecast update imminent
Hermenegildo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hermenegildo sea temperature is
14.8° C
(Which is 1.7°C colder than average for this time of year)How big are the waves at Hermenegildo today?
The current surf forecast for Hermenegildo at 9AM is: 2.5m 15s primary swell from a South direction and 1.6m 15s secondary swell from a South-southeast direction (forecast issued at 02:00am May 20). The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 8ft (2.5m) | 15s |
| Afternoon (20 May) | 10ft (3.0m) | 16s |
| Evening (20 May) | 11ft (3.5m) | 14s |
Table - waves today at Hermenegildo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 13°C on Wed morning, min 9°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | ||||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 12 | S 13 | S 14 | S 15 | SSE 16 | SSE 16 | S 15 | S 14 | S 14 | SSE 13 | SSE 13 | SSE 13 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | |
418 | 461 | 1902 | 3000 | 1993 | 4131 | 4491 | 4250 | 3445 | 2653 | 1380 | 1110 | 2246 | 1950 | 1578 | 1376 | 1122 | 950 | 824 | 769 | 659 | 493 | 405 | 341 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | |
High Tide | 2:52AM0.20m | 10:25AM0.40m | 4:26PM0.33m | 10:37PM0.79m | 3:32AM0.25m | 11:14AM0.38m | 5:12PM0.30m | 11:30PM0.76m | 4:22AM0.28m | 12:03PM0.38m | 5:59PM0.28m | |||||||||||||
Low Tide | 2:10AM0.20m | 6:38AM-0.15m | 1:29PM0.11m | 6:40PM0.22m | 3:01AM0.24m | 7:30AM-0.13m | 2:18PM0.11m | 7:30PM0.19m | 3:46AM0.28m | 8:22AM-0.09m | 3:09PM0.12m | 8:22PM0.17m | ||||||||||||
 | | |  | |  | |  | |  | | | |  | | | | | | | | | | | |
 | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — |
 | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:36 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 9 | 9 | 8 | 9 | 13 | 12 | 12 | 11 | 12 | 11 | 11 | 11 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 |
4 | 4 | 3 | 5 | 8 | 6 | 5 | 5 | 6 | 5 | 6 | 6 | 8 | 7 | 8 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | S 12 | S 13 | SSE 14 | SSE 15 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 |
 kJ | 418 | 461 | 674 | 1184 | 1993 | 2338 | 2449 | 2350 | 1933 | 1557 | 1380 | 1110 | 2246 | 1950 | 1578 | 1376 | 1122 | 950 | 824 | 769 | 659 | 493 | 405 | 341 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 17 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 498 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 4 | — | S 14 | S 15 | — | SSE 16 | S 15 | S 14 | S 14 | SSE 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | — | 1902 | 3000 | — | 4131 | 4491 | 4250 | 3445 | 2653 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 46 | 46 | 33 | 46 | 691 | 470 | 470 | 513 | 448 | 460 | 460 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 448 | 448 | 563 | 108 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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