La Posta 48 hour detailed Surf Forecast

Lat Long: 34.92° S 54.85° W

Issued: 8 pm 17 Jul 2026 (local time)

Forecast update in hr min

Today's La Posta sea temperature is

10.9° C

La Posta surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

How big are the waves at La Posta today (18 Jul):

Morning surf: Morning surf (18 Jul, local time) - 2.5ft (0.8m), 10s period with E swell.
Afternoon surf: Afternoon surf (18 Jul, local time) - 2.5ft (0.7m), 10s period with E swell.
Evening surf: Evening surf (18 Jul, local time) - 2.5ft (0.7m), 10s period with E swell.

The current surf forecast for La Posta at 4AM is: 0.7m 10s primary swell from a East direction and 0.2m 8s secondary swell from a South direction (forecast issued at 08:00pm July 17). The wind direction is predicted to be cross-onshore.

Time (-03) & Date	Wave Height	Wave Period
Morning (18 Jul)	2.5ft (0.8m)	10s
Afternoon (18 Jul)	2.5ft (0.7m)	10s
Evening (18 Jul)	2.5ft (0.7m)	10s

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

	Short Range Forecast Heavy rain (total 25mm), heaviest during Sat night. Warm (max 20°C on Fri night, min 9°C on Mon afternoon). Winds increasing (light winds from the NE on Sat morning, near gales from the S by Sun night).
	Fri 17		Saturday 18								Sunday 19
	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
Rating (10 max)	0	1	0	0	0	1	1	0	0	0	0	0	0	0	1	2	1	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	S 6	S 7	S 7
Wave Graph
kJ	151	151	117	117	94	128	104	104	102	104	77	75	75	102	75	95	150	521
Wind (km/h)	NNW	WNW	W	SSW	E	NE	N	SSW	SSE	SE	ESE	SE	E	E	NE	E	ENE	S
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross	on	cross	cross-off	off	cross-on	cross-on	cross-on	cross	cross-on	cross	cross	cross-off	cross-off	cross-off	on
High Tide			11:13PM0.25m		3:06AM0.21m		10:59AM0.26m					00:19AM0.22m	4:20AM0.21m		11:50AM0.26m
Low Tide		6:23PM0.05m		2:34AM0.21m		7:04AM0.14m				7:23PM0.04m		2:28AM0.20m		7:50AM0.16m				8:21PM0.04m


	—	—	—	—	7:43	—	—	—	—	—	—	—	7:43	—	—	—	—	—
	—	—	—	—	—	—	—	5:47	—	—	—	—	—	—	—	5:47	—	—
mm	1	1	—	1	2	3	3	—	—	—	2	1	4	2	1	1	1	2
Temp °C	23	20	17	14	14	15	17	16	14	13	13	13	14	15	16	16	16	12
Feels °C	22	20	17	13	12	15	17	16	13	12	11	10	13	15	16	16	16	5
Swell 1 Height (m) Direction Period (s)	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	S 5	S 6	S 6	E 7	E 10
kJ	151	151	117	117	94	128	104	104	102	104	77	75	75	27	30	46	27	50
Swell 2 Height (m) Direction Period (s)	S 8	S 8	W 4	S 8	SSW 2	S 13	S 3	S 3	S 12	S 12	S 12	S 11	S 11	E 10	E 10	E 10	ENE 10	—
kJ	5	5	1	5	1	14	1	1	3	3	3	3	2	102	75	74	34	—
Swell 3 Height (m) Direction Period (s)	W 5	S 17	S 8	S 15	S 14	S 8	S 13	S 13	S 7	S 7	S 7	S 11	S 14	S 11	S 11	S 11	—	—
kJ	2	22	5	17	16	1	3	3	1	1	1	10	4	2	2	2	—	—
Wind waves Height (m) Direction Period (s)	NW 4	NW 4	—	—	S 3	—	—	—	S 4	SE 3	SE 4	SSE 4	SSE 4	S 6	—	S 6	S 7	S 7
kJ	14	4	—	—	1	—	—	—	2	5	6	7	20	49	—	95	150	521
Nearest Offshore or Glassy	La Barra South	La Posta South	La Barra South	La Escollera North	La Boya South	La Posta South	La Posta South	Laguna de Rocha North	Laguna de Rocha North	Playa Grande North	Punta del Diablo North	Laguna de Rocha North	La Boya South	La Boya South	La Posta South	La Posta South	La Posta South	Jose Ignacio South
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	3	1	1	1	1	2	1	2
Distance (km)	1	0	1	71	2	0	0	65	65	154	155	65	2	2	0	0	0	25
Best forecast wave conditions in Uruguay - South	Punta Negra	El Chorro	El Chorro		Bikini	El Chorro	Punta Negra						Bikini	El Chorro	Punta Negra	Bikini	Punta Negra	Desembocadura de Garzon
Rating (10 max)	1	1	1		1	1	1						1	1	1	2	2	2
Best forecast wave conditions in Uruguay	La Moza North	La Moza North	La Derecha North	La Derecha North	Barre de Balizas North	La Coronilla North	Barre de Balizas North	La Derecha North	Barre del Chuy North	La Moza North	La Coronilla North	La Balconada North	La Coronilla North	La Moza North	La Derecha North	Bikini South	Punta Negra South	Desembocadura de Garzon South
Rating (10 max)	1	1	2	2	2	1	2	2	1	1	3	1	1	1	2	2	2	2
Header Global	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Seconds (White Rock) New Zealand	Seconds (White Rock) New Zealand	Seconds (White Rock) New Zealand	Seconds (White Rock) New Zealand	Dunedin - Cob Cottage New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Ning Nong Point and Reef New Zealand
Rating (10 max)	6	9	9	9	8	7	6	6	6	6	6	6	7	7	7	8	7	6

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

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La Posta 48 hour detailed Surf Forecast

How big are the waves at La Posta today (18 Jul):

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