- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
La Posta surfForecast / South / Uruguay
48hr Weather and Surf, issued 2 pm Monday 18 May 2026 -03Forecast update in hr min s Forecast update imminent
La Posta surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's La Posta sea temperature is
14.5° C
(Which is slightly cooler than normal)How big are the waves at La Posta today?
The current surf forecast for La Posta at 8PM is: 1.7m 16s primary swell from a South direction and 0.5m 4s secondary swell from a West direction (forecast issued at 02:00pm May 18). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 4ft (1.2m) | 12s |
| Evening (18 May) | 5.5ft (1.7m) | 15s |
Table - waves today at La Posta. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 13°C on Tue afternoon, min 8°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 10 | S 12 | S 17 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | SSE 12 | SSE 12 | SSE 12 | SSW 12 | S 13 | SSE 14 | SSE 16 | S 16 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 | |
279 | 423 | 1624 | 1293 | 1191 | 1079 | 609 | 414 | 339 | 256 | 236 | 236 | 624 | 334 | 555 | 1611 | 3260 | 2892 | 2775 | 2547 | 2023 | 1806 | 1843 | 1253 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | on | |
High Tide | 9:50AM0.17m | 9:28PM0.38m | 10:26AM0.17m | 4:33PM0.15m | 10:23PM0.36m | 11:06AM0.17m | 4:30PM0.14m | 11:20PM0.32m | ||||||||||||||||
Low Tide | 12:40PM0.14m | 6:00AM0.00m | 1:25PM0.13m | 4:55PM0.15m | 6:56AM0.03m | 2:15PM0.13m | 6:24PM0.13m | 7:50AM0.07m | ||||||||||||||||
 | |  | | | | | | | | | | | | |  | | |  | |  | | | | |
 | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:30 | — |
 | — | 5:42 | — | — | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | 5:39 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 12 | 11 | 11 | 10 | 8 | 8 | 8 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 |
6 | 6 | 6 | 6 | 5 | 2 | 2 | 1 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 6 | 5 | |
Swell 1 Height (m) Direction Period (s) | S 10 | S 12 | S 17 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | SSE 12 | SSE 12 | SSE 12 | S 12 | S 13 | SSE 14 | SSE 16 | — | — | — | — | — | — | S 13 | SSE 16 |
 kJ | 279 | 423 | 1624 | 1293 | 1191 | 1079 | 609 | 414 | 339 | 256 | 236 | 236 | 347 | 334 | 555 | 1611 | — | — | — | — | — | — | 1445 | 347 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | SSE 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 89 | 257 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSE 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 75 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 4 | — | W 4 | W 4 | W 4 | W 4 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SSW 12 | SSW 6 | SSW 6 | SSW 7 | S 16 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 |
| kJ | — | 10 | — | 7 | 14 | 19 | 28 | 66 | 107 | 143 | 126 | 114 | 624 | 140 | 172 | 181 | 3260 | 2892 | 2775 | 2547 | 2023 | 1806 | 1843 | 1253 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 58 | 118 | 30 | 7 | 3 | 3 | 25 | 25 | 118 | 76 | 76 | 58 | 71 | 118 | 159 | 158 | 683 | 683 | 532 | 532 | 245 | 245 | 233 | 158 |
Best forecast wave conditions in Uruguay - South | ||||||||||||||||||||||||
Best forecast wave conditions in Uruguay | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our La Posta surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest