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Level 10/10

Roca Cuadrada

Matanzas, Chile

😮‍💨Hold-downs🪨Rocks🏝️Remote

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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.

10-Day Forecast

Today5

Poor

2.5mWSW@12s

8km/h

2.5m@12s

8km/h

Thu6

Poor

2.9mWSW@11s

12km/h

2.9m@11s

12km/h

Fri7

Poor

1.8mWSW@12s

12km/h

1.8m@12s

12km/h

Sat8

Poor

4.2mSW@15s

12km/h

4.2m@15s

12km/h

Sun9

Poor

3.8mSW@14s

15km/h

3.8m@14s

15km/h

Mon10

Poor

2.6mSW@14s

8km/h

2.6m@14s

8km/h

Tue11

Poor

1.3mSW@13s

18km/h

1.3m@13s

18km/h

Wed12

Poor

1.1mWSW@15s

8km/h

1.1m@15s

8km/h

Thu13

Poor

1.6mWSW@16s

8km/h

1.6m@16s

8km/h

Fri14

Poor

1.4mWSW@14s

7km/h

1.4m@14s

7km/h

5+ days out, less certain

View 2-year historical scores →

Today's Conditions

Find Flights

Best session: MorningAM 6 km/h · PM 13 km/h

Swell

2.5m

WSW(249°)

Score: 2/25

Period

12s

Medium period swell

Score: 2/25

Wind

8km/h

N(6°)

Score: 18/25

Weather

13°C

0.0mm97%

First light 7:05amSunrise 7:35amSunset 6:10pmLast light 6:40pm

Confidence

100%

Location & Conditions

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Swell

Wind

Showing forecast for today

Hourly Forecast, Tide & Strike Windows

Strike window: 7:05am–6:39pm · through highIdeal 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

11°

12°

14°

15°

13°

7°

9°

14°

16°

13°

6°

9°

13°

10°

6°

7°

12°

13°

11°

6°

8°

13°

10°

3°

6°

12°

11°

5°

7°

11°

13°

12°

4°

6°

11°

14°

11°

7°

9°

14°

17°

14°

8°

9°

13°

14°

12°

5m2.5

sec

12s

11s

12s

15s

14s

13s

15s

16s

14s

swell

windkm/h

4g10

8g13

7g17

11g22

16g26

7g11

11g19

14g27

14g28

16g27

6g11

13g19

16g32

17g35

6g13

9g15

11g18

6g17

17g32

18g29

13g23

12g22

12g24

18g33

20g38

6g11

8g16

2g18

9g19

11g23

15g21

14g29

18g40

25g46

17g46

13g18

10g19

4g20

8g20

3g20

8g14

6g16

9g21

11g26

5g30

8g12

7g16

4g19

9g21

7g23

tidem

2:15am1.2m

8:30am0.5m

2:07pm1.1m

8:22pm0.4m

3:04am1.1m

9:50am0.4m

3:10pm0.8m

9:12pm0.3m

4:30am1.2m

11:22am0.4m

4:50pm0.8m

10:30pm0.4m

5:37am1.3m

12:55pm0.4m

6:20pm0.8m

6:51am1.4m

2:00pm0.3m

7:37pm0.9m

1:00am0.4m

7:48am1.5m

2:50pm0.2m

8:35pm0.9m

2:02am0.2m

8:41am1.6m

3:30pm0.0m

9:20pm1.0m

2:52am0.1m

9:33am1.7m

4:10pm0.0m

10:06pm1.1m

3:43am0.1m

10:12am1.8m

4:48pm0.0m

4:26am0.1m

10:57am1.7m

5:23pm0.1m

Ideal tideStrike windowNight

Tide times today

2:15 am

High tide - 1.16m

8:30 am

Low tide - 0.49m

2:07 pm

High tide - 1.06m

8:22 pm

Low tide - 0.37m

Times shown in spot-local time.

Strike Score Breakdown

Poor

Components

Swell Direction11/25

Swell Size2/25

Swell Period2/25

Wind18/25

Raw Score33/100

Adjustments

🌊 Tide+5

💨 Gusty Wind-3

📉 Undersized Swell-11

🚫 Undersized Capmax 30

Adjusted Score24/100

Confidence

Multiplier×1.00

Final Score24

🌊 Optimal tide window

Plan Your Strike

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

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Location & Conditions

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Swell

Wind

Showing forecast for today

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Spot Details

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Swell Requirements

Optimal direction: SW (225°)
Direction range: 200° - 250°
Size range: 4.5m - 9m
Ideal size: 7.0m
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?

Roca Cuadrada works best on a mid tide, ideally between 0.5m and 2m on the local tide chart. The tide chart above shows today’s strike window.

What wind direction is offshore at Roca Cuadrada?

Offshore wind at Roca Cuadrada blows from the E (90°). Anything in the 70° to 110° range grooms the faces; outside it, expect chop or bumpy conditions.