Las Cuevas Surf Break

Lat Long: 38.21° S 57.70° W

Las Cuevas Surf Forecast and Surf Report

Issued: 2 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Las Cuevas sea temperature is
10.8°C
2.3° 

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


Las Cuevas surf forecast from 1 Sep 2026:

  • Best quality surf: Monday 7 Sep, 9AM (local time) - 4.5ft (1.4m), 9s period, SE swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 3PM (local time) - 7.5ft (2.3m), 8s period, S swell with 709 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 12AM (local time) - 1.5ft (0.5m), 8s period with E swell.

Best Forecast Surf Conditions for Las Cuevas this week:

The surf forecast for Las Cuevas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 12AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Las Cuevas in the next 16 days are 2.3m 8s and forecast to arrive on Saturday (Sep 05) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Sep 08) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Wed 2nd Sep)1.5ft (0.5m) 8s
Best Surf 9AM (Mon 7th Sep)4.5ft (1.4m) 9s
Most Powerful 3PM (Sat 5th Sep)7.5ft (2.3m) 8s

Table - best surf conditions forecast for Las Cuevas over the next 16 days.


The Lowdown

Hey, Rusty here, checking in on Las Cuevas. The surf outlook for the next couple of weeks is pretty flat, with only a couple of sessions that’ll get your heart pumping.

The first few days are a bust. Swell is tiny, around 2 feet from the east, with short periods and weak energy. The water is 51°F, which is about 4°F warmer than normal, so that’s a bit unusual. Combined swell energy is around 40 (low energy), so don’t bother.

Friday the 4th of September shows a 5-foot SSW swell, but with a period of just 7 seconds, it’s not going to have much shape. The wind is cross-off in the morning, making it clean, and the energy hits 366 (moderate wave energy). It’s a marginal call, so the morning is your best bet before the wind shifts.

The weekend of the 5th and 6th is a mess. Strong cross-onshore winds at 25 mph, with a 8-foot southwest swell that’s too big and messy. The combined energy is 734 (strong wave energy), but it’s a chop-fest. This is a kite-surfing day, not a paddle session.

Monday the 7th of September has a 5-foot southeast swell at 9 seconds, with a clean cross-off wind from the WSW at 9 mph. The energy is 416 (moderate wave energy), and the conditions are good. The crowds are sometimes an issue, so go early. The afternoon turns onshore, so it’s a morning-only deal.

The next few days are small and weak. A few 3-foot swells with cross-off winds, but nothing special. The combined energy stays around 100 (weak to moderate) until the 10th of September, when Thursday afternoon has a 3-foot easterly swell with a light cross-off wind, but it’s still just ordinary.

The standout is Saturday the 12th of September. The morning has a 10-foot SSW swell at 11 seconds, with a clean offshore wind from the NW at 9 mph. The combined energy is a massive 2902 (very strong wave energy). But the problem is that it’s too big for this break. The afternoon drops to 6 feet with a cross-shore wind, so it’s marginal.

The best session is Sunday the 13th of September. A 6-foot south swell at 11 seconds, with a clean cross-off wind from the west at 9 mph. The energy is 773 (strong wave energy), and the conditions are very good. Expect some company, though, as crowds are sometimes an issue. This is the one to aim for.

After that, the swell fades, and the wind turns nasty. The second week has a few 2-foot to 4-foot swells, but the wind is cross-on or strong cross-shore, making it a grind. The 16th of September is a no-go with moderate cross-onshore winds.

So, in short, it’s a slow two weeks. The best call is Sunday the 13th of September at Las Cuevas, with a solid 6-foot south swell, clean cross-off wind, and a long period that’ll give the waves some real power. The morning of the 7th is a secondary option. Otherwise, it’s a waiting game.

Rusty.

Short Range Forecast

Light rain (total 9mm), mostly falling on Wed afternoon. Very mild (max 14°C on Tue afternoon, min 6°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the SW by Thu afternoon).

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Sat night. Very mild (max 10°C on Fri afternoon, min 3°C on Mon morning). Winds decreasing (strong winds from the S on Sat night, light winds from the SW by Mon morning).

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
1
0
0
0
1
0
0
0
0
0
0
0
1
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
E
8
0.5
E
8
0.5
E
9
0.5
E
9
0.5
E
9
0.7
E
9
0.7
E
10
1.3
S
7
1.4
SSW
7
0.9
SSW
7
0.9
SSW
6
1.9
SSW
7
2.3
S
8
2.2
S
8
2.1
SSE
9
2
SSE
9
1.8
SSE
9
1.4
SE
9
1.3
SE
9
1.1
SE
10
Wave Graph
Metric surfscale
Energy kJ
35
35
38
39
38
81
106
157
192
75
53
355
709
628
632
623
464
332
314
213
Wind (km/h)
10
SSW
5
SE
25
N
25
NNW
15
NW
20
WSW
30
SW
20
SW
20
W
25
SW
30
WSW
40
S
40
SSW
45
SSE
35
SSE
30
SSE
15
S
15
WSW
10
SSE
15
NNE
Wind State
cross-on
glassy
cross-off
cross-off
off
cross-off
cross
cross
cross-off
cross
cross-off
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-off
on
cross-off
High Tide
10:19PM1.20m
10:27AM1.20m
11:06PM1.14m
11:09AM1.25m
11:58PM1.06m
11:57AM1.28m
00:55AM0.98m
12:51PM1.30m
1:59AM0.90m
1:54PM1.31m
3:09AM0.86m
3:03PM1.33m
Low Tide
4:44PM0.24m
5:11AM0.37m
5:33PM0.20m
5:43AM0.43m
6:25PM0.17m
6:16AM0.48m
7:23PM0.17m
6:52AM0.52m
8:27PM0.17m
7:37AM0.54m
9:38PM0.18m
8:36AM0.55m
10:51PM0.17m
cloud
part cloud
light rain
mod rain
rain showers
clear
clear
clear
clear
part cloud
rain showers
light rain
rain showers
light rain
cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:09
7:07
7:07
7:05
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:29
6:30
6:30
6:31
6:32
6:34
 mm
1
7
1
1
2
1
4
Temp °C
14
10
11
12
12
11
10
9
10
10
10
7
7
6
7
7
7
5
6
6
Feels °C
10
6
8
8
10
6
3
3
5
4
4
-2
-3
-5
-3
0
0
2
2
2
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Las Cuevas:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Las Cuevas 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 Las Cuevas Surf forecast

The above surf forecast table for Las Cuevas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Las Cuevas can be found by selecting the local surf guide option on the grey menu. Our Las Cuevas 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 (Las Cuevas) 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 Las Cuevas 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 Provincia de Buenos Aires? If you are looking for accommodation near Las Cuevas, camping, hotels and holiday cottages in Provincia de Buenos Aires, consider staying in Mar del Plata which is 26 km (16 miles) away. Alternatively, find information about places to stay and car hire in Quequen which is 95 km (59 miles) away

Nearest locationNearest