La Posta Surf Forecast

/ South (25 surf breaks) /

Uruguay (54 surf breaks) / Lat Long: (34.92° S 54.85° W)

Surf Forecasts:

La Posta surfForecast / South / Uruguay

48hr Weather and Surf, issued 2 pm Wednesday 17 Sep 2025 -03

Forecast 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 13.9° C
(Which is 2.5°C warmer than normal for this time of year)

How big are the waves at La Posta today?

The current surf forecast for La Posta at 5PM is: 0.8m 13s primary swell from a East-southeast direction (forecast issued at 02:00pm September 17). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & Date	Wave Height	Wave Period
Morning (17 Sep)	-	-
Afternoon (17 Sep)	2.5ft (0.8m)	13s
Evening (17 Sep)	2.5ft (0.7m)	12s

Table - waves today at La Posta. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 17				Thursday 18								Friday 19								Saturday 20
	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM
Rating (10 max)	2	1	1	0	0	1	1	0	0	0	0	0	0	0	1	1	1	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	SE	SE	ESE	ESE	ESE	ESE	SE	ESE	ESE	ESE	SE	E	E	E	E	E	E	E	E	E	E
Period(s) (?)	13	13	13	12	12	12	12	12	12	12	12	11	11	11	7	7	8	8	8	8	8	8	8	8
Wave Graph (?)
kJ (?)	295	212	206	159	154	129	96	94	93	67	53	50	48	30	74	83	90	93	78	80	86	88	88	88
Wind (km/h)	NE	E	ENE	ENE	NE	ENE	ENE	ENE	ENE	NE	NE	ENE	ENE	NE	NE	NNE	SSW	SSE	E	E	E	E	ENE	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	glass	cross- on	cross	cross	cross	cross	cross- off	cross- off
High Tide / height (m)			5:03PM 0.27				5:36AM 0.20					6:10PM 0.26				6:18AM 0.22				7:07PM 0.25				6:59AM 0.24
Low Tide / height (m)	11:39AM 0.13					1:02AM 0.10				12:56PM 0.11				1:59AM 0.12				2:03PM 0.09				2:50AM 0.13

	Wednesday 17				Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	-	-	-	-	-	6:35	-	-	-	-	-	-	-	6:33	-	-	-	-	-	-	-	6:31
Sunset	-	-	6:30	-	-	-	-	-	-	-	6:31	-	-	-	-	-	-	-	6:32	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	21	20	20	18	17	16	15	15	18	19	19	18	16	15	16	17	21	19	17	16	14	13	13	15
Feels °C (?)	21	18	17	16	16	15	14	12	14	16	18	17	15	13	15	17	22	18	16	15	12	10	10	12

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for South

Wind Update The wind is still cross-off at La Posta (light winds from the NE at Punta del Este wx 10 km from La Posta). A 0.8m groundswell from the ESE
30 minutes ago La Posta

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Actual: 30 min ago

18 km/h

Cross-Off

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