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Surf Forecasts:
Guarita surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 2 am Monday 18 May 2026 -03Forecast update in hr min s Forecast update imminent
Guarita surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Guarita sea temperature is
19.2° C
(Which is 1.3°C colder than average for this time of year)How big are the waves at Guarita today?
The current surf forecast for Guarita at 7AM is: 1.3m 6s primary swell from a South direction and 0.5m 9s secondary swell from a South direction, 0.3m 14s secondary swell from a South-southeast direction (forecast issued at 02:00am May 18). The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.5m) | 6s |
| Afternoon (18 May) | 6ft (1.9m) | 7s |
| Evening (18 May) | 5ft (1.6m) | 8s |
Table - waves today at Guarita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Mon morning. Very mild (max 19°C on Wed afternoon, min 11°C on Mon night). Winds decreasing (fresh winds from the SW on Mon morning, calm by Tue afternoon). | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 10 | S 10 | S 5 | S 6 | S 7 | S 7 | S 8 | S 8 | S 11 | SSE 13 | SSE 17 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | S 13 | S 13 | S 13 | S 13 | S 14 | SSE 16 | |
68 | 48 | 77 | 170 | 188 | 366 | 287 | 294 | 639 | 735 | 1843 | 1762 | 1631 | 1419 | 1060 | 861 | 599 | 563 | 468 | 573 | 1581 | 1298 | 2471 | 2310 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 00:22AM0.37m | 6:40AM0.15m | 1:46PM0.47m | 7:07PM0.58m | 00:54AM0.43m | 7:38AM0.12m | 2:21PM0.43m | 8:10PM0.60m | 1:32AM0.49m | 8:29AM0.12m | 2:58PM0.39m | |||||||||||||
Low Tide | 4:19AM0.07m | 9:22AM0.03m | 3:55PM0.40m | 10:36PM0.35m | 5:09AM0.02m | 10:08AM0.02m | 4:39PM0.35m | 11:19PM0.42m | 5:56AM0.01m | 10:57AM0.02m | 5:23PM0.29m | |||||||||||||
 | | |  | | | |  |  | | |  | | | | | | | | | | | | | |
 | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — |
 | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:31 | — | — |
2 | 4 | 4 | 3 | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 12 | 15 | 15 | 14 | 13 | 12 | 12 | 11 | 13 | 17 | 19 | 15 | 13 |
14 | 12 | 9 | 8 | 8 | 9 | 9 | 10 | 9 | 8 | 9 | 10 | 13 | 13 | 14 | 11 | 10 | 10 | 9 | 11 | 13 | 13 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | SSE 14 | S 7 | S 7 | S 7 | S 7 | SSE 7 | SSE 13 | SSE 17 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | S 13 | S 13 | S 13 | S 14 | SSE 14 | SSE 16 |
 kJ | 68 | 46 | 43 | 36 | 188 | 195 | 171 | 168 | 161 | 735 | 1843 | 1762 | 1631 | 1419 | 1060 | 861 | 599 | 563 | 468 | 573 | 812 | 1178 | 1533 | 2310 |
Swell 2 Height (m) Direction Period (s) | E 5 | SSE 15 | SSE 14 | E 7 | SSE 13 | SSE 12 | SSE 12 | ESE 6 | SSE 20 | SSE 19 | ESE 6 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | E 5 | E 5 | E 5 | E 5 | E 7 | E 7 | E 7 | E 7 | ENE 7 |
| kJ | 2 | 21 | 41 | 1 | 34 | 15 | 29 | 12 | 76 | 207 | 12 | 6 | 6 | 6 | 6 | 5 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 5 |
Swell 3 Height (m) Direction Period (s) | SSE 15 | SE 12 | E 7 | S 16 | SE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 20 | ESE 6 | SE 11 | — | — | — | — | — | E 7 | — | — | — | ENE 7 | — | — | — |
| kJ | 23 | 6 | 1 | 5 | 10 | 24 | 25 | 44 | 77 | 13 | 4 | — | — | — | — | — | 1 | — | — | — | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 5 | S 5 | S 6 | SSW 7 | S 7 | S 8 | S 8 | S 11 | — | — | — | — | — | — | — | — | — | — | WSW 4 | S 13 | S 13 | S 14 | — |
| kJ | 34 | 48 | 77 | 170 | 371 | 366 | 287 | 294 | 639 | — | — | — | — | — | — | — | — | — | — | 10 | 1581 | 1298 | 2471 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 152 | 171 | 152 | 183 | 183 | 71 | 71 | 21 | 0 | 0 | 0 | 0 | 39 | 71 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 84 | 142 | 142 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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