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Level 10/10

Roca Cuadrada

Matanzas, Chile
😮‍💨Hold-downs🪨Rocks🏝️Remote

Roca Cuadrada ("Square Rock") is a big wave left reef near Matanzas that comes alive on massive SW swells. Named for a distinctive square-shaped rock, the wave can produce 30-foot faces for tow-in chargers.

Roca Cuadrada surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Today20
0
Poor
2.4m@12s
20km/h
Mon21
0
Poor
2.1m@11s
17km/h
Tue22
5
Poor
1.3m@11s
12km/h
Wed23
15
Poor
1.1m@11s
5km/h
Thu24
0
Poor
2.2m@13s
20km/h
Fri25
10
Poor
2.1m@11s
9km/h
Sat26
9
Poor
1.9m@14s
10km/h
Sun27
10
Poor
1.4m@12s
8km/h
Mon28
11
Poor
1.3m@11s
7km/h
Tue29
10
Poor
0.8m@12s
13km/h
5+ days out, less certain

Today's Conditions

Find Flights
Best session: AfternoonAM 25 km/h · PM 16 km/h
Swell
2.4m
W(264°)
Score: 2/25
Period
12s
Medium period swell
Score: 2/25
Wind
20km/h
NW(310°)
Score: 0/25
Weather
14°C
2.5mm70%
First light 7:09amSunrise 7:39amSunset 7:42pmLast light 8:12pm
Windswell0.7m@3sSecondary0.7mConfidence
100%

Location & Conditions

Loading map...
0°45°90°135°180°225°270°315°NESW
Swell
Wind
Showing forecast for today

Hourly Forecast, Tide & Strike Windows

Strike window: 7:09am–12:34pm · droppingStrike window: 3:20–8:12pm · risingIdeal tide: 0.5–2.0m
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
°C
13°
13°
14°
15°
15°
9°
11°
15°
17°
16°
9°
11°
16°
18°
17°
10°
11°
14°
15°
14°
13°
14°
14°
14°
14°
12°
13°
17°
18°
18°
13°
14°
16°
18°
17°
11°
12°
14°
16°
15°
13°
13°
15°
16°
15°
9°
11°
13°
16°
15°
3m1.5
sec
12s
12s
12s
12s
12s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
13s
13s
13s
13s
13s
11s
11s
11s
11s
11s
14s
14s
14s
14s
14s
12s
12s
12s
12s
12s
11s
11s
11s
11s
11s
12s
12s
12s
12s
12s
swell
windkm/h
23g37
27g44
21g44
16g35
17g33
15g24
17g28
17g30
18g34
20g35
7g15
7g12
9g19
23g40
19g39
3g5
2g4
2g10
5g15
13g32
17g26
14g34
22g40
23g39
22g41
8g22
9g17
3g16
15g30
12g27
4g10
3g8
8g21
19g36
19g39
5g17
5g11
6g19
14g30
8g32
7g10
4g14
6g21
11g28
9g29
11g21
11g19
8g27
18g36
19g40
tidem
6:18am1.1m
1:54pm0.5m
7:30pm0.7m
12:42am0.5m
7:30am1.1m
2:30pm0.3m
8:20pm0.8m
1:38am0.4m
8:12am1.2m
3:03pm0.3m
9:00pm0.8m
2:23am0.3m
8:48am1.3m
3:30pm0.2m
9:30pm1.0m
3:02am0.3m
9:25am1.4m
3:55pm0.1m
9:57pm1.1m
3:39am0.3m
9:55am1.4m
4:22pm0.2m
10:22pm1.3m
4:18am0.2m
10:26am1.5m
4:46pm0.1m
4:56am0.1m
11:01am1.4m
5:12pm0.1m
5:37am0.1m
11:38am1.2m
5:41pm0.0m
Ideal tideStrike windowNight

Tide times today

6:18 am
High tide - 1.12m
1:54 pm
Low tide - 0.45m
7:30 pm
High tide - 0.73m
Times shown in spot-local time.

Strike Score Breakdown

0
Poor
Components
Swell Direction7/25
Swell Size2/25
Swell Period2/25
Wind0/25
Raw Score11/100
Adjustments
🌊 Tide+3
💨 Gusty Wind-5
⚠️ Weak Component-10
📉 Undersized Swell-11
⚖️ Penalty Stack Cap+1
🚫 Undersized Capmax 30
Adjusted Score0/100
Confidence
Multiplier×1.00
Final Score0
🌊 Mostly in the tide window

Plan Your Strike

Return flights to SCL, departing today with a 5-day trip window.

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Swell Requirements

Optimal direction
SW (225°)
Direction range
200° - 250°
Size range
4.5m - 9m
Ideal size
5.9m - 7.2m
Height multiplier
1.08×
Ideal period
20s+

Wind Requirements

Optimal direction
E (90°)
Offshore range
70° - 110°

Tide Requirements

Optimal tide
all
Optimal range
0.5m - 2m

Water temp

13°C

Wetsuit

4/3mm fullsuit

Difficulty

10/10

Crowd level

1/10

Access: Near Matanzas. Big wave spot.

Frequently Asked Questions

What tide is best at Roca Cuadrada?

The Roca Cuadrada profile favors the recorded tide range, ideally between 0.5m and 2m on the local tide chart. Compare this preference with the forecast tide and local conditions before choosing a session.

What wind direction is offshore at Roca Cuadrada?

The Roca Cuadrada profile uses wind from E (90°) as its preferred direction, with an offshore range of 70° to 110°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.

What swell size and direction work best at Roca Cuadrada?

The Roca Cuadrada scoring profile favors swell from SW (200° to 250°), a swell-height range of 4.5m to 9m, and a reference period of 20s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.

When is the best time of year to surf Roca Cuadrada?

The main season at Roca Cuadrada is May-Sep. A secondary window runs Apr, Oct. Big wave spot. Needs massive swell.

How do I get to Roca Cuadrada?

The spot profile lists SCL as a nearby airport. The estimated road transfer is 160 minutes. Near Matanzas. Big wave spot.

What kind of wave is Roca Cuadrada?

Roca Cuadrada is a big wave break, a left-hander. Difficulty is rated 10/10.

Best Season

Peak: May-Sep

Secondary: Apr, Oct

Big wave spot. Needs massive swell.

Getting There

Airport
SCL
Drive time
160 min
Data quality
community

Plan a trip around Roca Cuadrada

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Strike Log

Community Discussion