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

12 Day Weather and Surf, issued 2 am Monday 15 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 14.1° C
(Which is 2.7°C warmer than normal for this time of year)

Best Forecast Surf Conditions for La Posta this week:

The surf forecast for La Posta over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 15) at 12PM. The primary swell is predicted to be 1.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at La Posta in the next 12 days are 3.5m 10s and forecast to arrive on Monday (Sep 22) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Thursday (Sep 18) at 9PM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	12PM (Mon 15th Sep)	4.5ft (1.4m) 14s
Best Surf	12PM (Mon 15th Sep)	4.5ft (1.4m) 14s
Most Powerful	9AM (Mon 22nd Sep)	11ft (3.5m) 10s

Table - best surf conditions forecast for La Posta over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Mostly dry. Very mild (max 19°C on Wed morning, min 13°C on Mon night). Wind will be generally light.									Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Sat night. Warm (max 22°C on Thu afternoon, min 14°C on Fri night). Winds increasing (calm on Fri morning, fresh winds from the E by Sat afternoon).
	Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	2	2	2	3	2	1	2	1	0	0	1	1	1	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	ESE	SE	E	E	E	ESE	E	E	E	E	SE	SE
Period(s) (?)	14	14	14	14	14	13	13	13	12	12	12	8	8	8	10	9	4	4	5	7	8
Wave Graph (?)
kJ (?)	866	765	662	702	523	373	299	212	154	94	68	61	44	41	10	127	38	40	57	365	349
Wind (km/h)	ESE	S	SSE	ENE	ESE	NE	NNE	E	ENE	NE	ENE	NE	NNW	WSW	ENE	ENE	ESE	E	ESE	SSW	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	on	cross- on	cross- off	cross	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	glass	cross- on	cross- off	cross- off	cross	cross- off	cross	on	on
High Tide / height (m)		2:26PM 0.30		4:02AM 7:17AM 0.16 0.16	3:45PM 0.28		4:51AM 0.18	5:03PM 0.27		5:36AM 0.20		6:10PM 0.26	6:18AM 0.22		7:07PM 0.25	6:59AM 0.24		7:58PM 0.24	7:40AM 0.26		8:46PM 1:04AM 0.24 0.19
Low Tide / height (m)	9:13AM 0.16		10:56PM 0.06	6:00AM 10:21AM 0.16 0.14		12:00AM 0.08	11:39AM 0.13		1:02AM 0.10		12:56PM 0.11	1:59AM 0.12		2:03PM 0.09	2:50AM 0.13		2:59PM 0.07		3:36AM 0.15	3:47PM 0.05	12:27AM 0.19

	Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
Sunrise	6:39	-	-	6:37	-	-	6:35	-	-	6:35	-	-	6:33	-	-	6:31	-	-	6:30	-	-
Sunset	-	6:30	-	-	6:30	-	-	6:30	-	-	6:31	-	-	6:32	-	-	6:34	-	-	6:34	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	2	7	1	-	14	31	3	1
Temp. °C	16	16	14	16	18	16	19	19	16	19	22	19	20	22	17	18	17	16	16	14	12
Feels °C (?)	16	15	14	15	16	14	18	16	15	18	21	18	21	24	17	17	14	14	15	10	3

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 Continuing clean conditions at La Posta (calm at Capitan Corbeta CA Curbelo International Airport 23 km from La Posta). A 1.6m groundswell from the ESE
2 hours 3 minutes ago La Posta

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23 km away, 2 h 3 min ago

4 km/h

0.0

14.1

Air / Water (°C)

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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.

Information about the La Posta Surf forecast

The above surf forecast table for La Posta provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at La Posta can be found by selecting the local surf guide option on the grey menu. Our La Posta surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (La Posta) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for La Posta may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Uruguay - South? If you are looking for accommodation near La Posta, camping, hotels and holiday cottages in Uruguay - South, consider staying in Maldonado which is 9 km (6 miles) away. Other places in and around Uruguay - South where you can find information about places to rent, and car hire include San Carlos which is 15 km (9 miles) away, Rocha, La Paloma and Minas.