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Surf Forecasts:
La Posta surfForecast / South / Uruguay
48hr Weather and Surf, issued 2 am Tuesday 19 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 9AM is: 1.1m 13s primary swell from a South direction and 1.1m 5s secondary swell from a West-southwest direction (forecast issued at 02:00am May 19). The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 3.5ft (1.1m) | 13s |
| Afternoon (19 May) | 3ft (0.9m) | 12s |
| Evening (19 May) | 3ft (0.9m) | 12s |
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 Tue morning). Winds decreasing (fresh winds from the W on Tue morning, light winds from the S by Thu night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 14 | S 14 | S 13 | S 13 | S 13 | SSE 12 | SSE 12 | SSE 12 | SSW 12 | S 13 | SSE 14 | S 16 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 12 | SSE 12 | S 12 | SSE 14 | SSE 13 | SSE 13 | |
1191 | 956 | 609 | 414 | 339 | 256 | 236 | 236 | 609 | 848 | 711 | 2600 | 2942 | 2853 | 2708 | 2291 | 1862 | 1468 | 1254 | 1100 | 827 | 1482 | 1249 | 1057 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | on | on | on | on | on | on | |
High Tide | 9:28PM0.38m | 10:26AM0.17m | 4:33PM0.15m | 10:23PM0.36m | 11:06AM0.17m | 4:30PM0.14m | 11:20PM0.32m | 11:52AM0.19m | 4:40PM0.14m | |||||||||||||||
Low Tide | 6:00AM0.00m | 1:25PM0.13m | 4:55PM0.15m | 6:56AM0.03m | 2:15PM0.13m | 6:24PM0.13m | 7:50AM0.07m | 3:15PM0.14m | 7:39PM0.11m | |||||||||||||||
 | | |  | | | | | | | |  | | |  | | | | | | | | | | |
 | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — |
 | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:39 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 9 | 8 | 8 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
5 | 3 | 2 | 1 | 4 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 6 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 7 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 13 | S 13 | SSE 12 | SSE 12 | SSE 12 | — | — | SSE 14 | S 16 | — | — | — | — | — | S 13 | S 12 | SSE 12 | S 12 | SSE 14 | SSE 13 | SSE 13 |
 kJ | 1191 | 956 | 609 | 414 | 339 | 256 | 236 | 236 | — | — | 711 | 2600 | — | — | — | — | — | 1468 | 1254 | 1100 | 827 | 1482 | 1249 | 1057 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 17 | SSE 15 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 246 | 451 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 4 | W 4 | W 4 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SSW 12 | S 13 | SSW 6 | — | S 15 | S 14 | S 14 | S 14 | S 13 | — | — | — | — | — | — | — |
| kJ | 15 | 13 | 22 | 69 | 111 | 143 | 126 | 105 | 609 | 848 | 106 | — | 2942 | 2853 | 2708 | 2291 | 1862 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 3 | 25 | 25 | 118 | 118 | 76 | 58 | 71 | 118 | 159 | 159 | 683 | 532 | 532 | 532 | 233 | 233 | 233 | 233 | 156 | 71 | 71 | 71 |
Best forecast wave conditions in Uruguay - South | ||||||||||||||||||||||||
Best forecast wave conditions in Uruguay | ||||||||||||||||||||||||
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