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Surf Forecasts:
La Posta surfForecast / South / Uruguay
48hr Weather and Surf, issued 2 pm Sunday 17 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
14.6° C
(Which is slightly cooler than normal)How big are the waves at La Posta today?
The current surf forecast for La Posta at 10PM is: 1.2m 9s primary swell from a South direction and 0.1m 17s secondary swell from a South direction, 0.2m 10s secondary swell from a South direction (forecast issued at 02:00pm May 17). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | - | - |
| Afternoon (17 May) | 4.5ft (1.3m) | 8s |
| Evening (17 May) | 4ft (1.2m) | 9s |
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. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 8 | S 8 | S 8 | S 9 | S 6 | SSW 6 | S 9 | S 9 | S 10 | S 12 | S 17 | S 15 | S 14 | S 14 | SSE 13 | S 13 | S 13 | SSE 12 | S 12 | SSE 12 | SSW 12 | S 13 | S 13 | SSE 15 | |
167 | 213 | 185 | 220 | 66 | 95 | 364 | 318 | 320 | 575 | 1484 | 1315 | 1212 | 971 | 711 | 483 | 334 | 252 | 228 | 236 | 655 | 334 | 513 | 948 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | |
High Tide | 9:16AM0.19m | 8:35PM0.39m | 9:50AM0.17m | 9:28PM0.38m | 10:26AM0.17m | 4:33PM0.15m | 10:23PM0.36m | |||||||||||||||||
Low Tide | 12:01PM0.16m | 5:03AM-0.02m | 12:40PM0.14m | 6:00AM0.00m | 1:25PM0.13m | 4:55PM0.15m | 6:56AM0.03m | |||||||||||||||||
 |  |  | | |  | | |  | | | | | | | | | | | | |  | | | |
 | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — |
 | — | 5:43 | — | — | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:42 | — | — | — | — | — | 5:40 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 8 | 8 | 8 | 11 | 13 | 13 | 12 | 13 | 12 | 12 | 12 |
6 | 5 | 7 | 6 | 6 | 7 | 8 | 7 | 6 | 6 | 6 | 7 | 6 | 3 | 2 | 2 | 4 | 6 | 7 | 6 | 8 | 7 | 6 | 5 | |
Swell 1 Height (m) Direction Period (s) | SSE 14 | S 13 | S 11 | S 17 | S 9 | S 9 | S 9 | S 9 | S 10 | S 12 | S 17 | S 15 | S 14 | S 14 | SSE 13 | S 13 | S 13 | SSE 12 | S 12 | SSE 12 | S 12 | S 13 | S 13 | SSE 15 |
 kJ | 21 | 14 | 23 | 6 | 59 | 59 | 264 | 318 | 320 | 575 | 1484 | 1315 | 1212 | 971 | 711 | 483 | 334 | 252 | 228 | 236 | 347 | 334 | 513 | 948 |
Swell 2 Height (m) Direction Period (s) | — | — | E 8 | S 10 | S 16 | SE 16 | — | S 22 | SSE 12 | SSE 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 1 | 8 | 5 | 9 | — | 9 | 89 | 257 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 12 | E 8 | — | — | — | SSE 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 5 | 1 | — | — | — | 75 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 9 | S 6 | SSW 6 | S 9 | — | — | W 4 | W 4 | — | — | W 4 | W 4 | W 4 | W 5 | WSW 5 | WSW 6 | WSW 5 | SSW 12 | SW 6 | SSW 5 | SSW 6 |
| kJ | 167 | 213 | 185 | 220 | 66 | 95 | 364 | — | — | 7 | 6 | — | — | 13 | 13 | 19 | 54 | 93 | 107 | 90 | 655 | 80 | 71 | 155 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 233 | 233 | 233 | 76 | 118 | 156 | 25 | 3 | 25 | 118 | 25 | 7 | 3 | 3 | 25 | 25 | 30 | 71 | 71 | 25 | 58 | 71 | 156 | 159 |
Best forecast wave conditions in Uruguay - South | ||||||||||||||||||||||||
Best forecast wave conditions in Uruguay | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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