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Las Islitas (Matanchen Bay)

San Blas, Mexico

🌀Strong rips🚶Difficult access

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Las Islitas in Matanchen Bay holds the Guinness World Record for the world's longest rideable wave at 5,700 feet. When conditions align—typically needing a large, long-period south swell—the wave can connect through multiple points for rides lasting several minutes. While jetty construction has altered the wave somewhat, it still offers the potential for extraordinarily long rides on the right day. The wave is mellow and forgiving, making those marathon rides accessible to surfers of various skill levels.

Las Islitas (Matanchen Bay) surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast

Sat19

Poor

0.7mSW@14s

6km/h

0.7m@14s

6km/h

Today20

Poor

0.7mSW@15s

7km/h

0.7m@15s

7km/h

Mon21

Poor

0.8mSW@17s

5km/h

0.8m@17s

5km/h

Tue22

Poor

0.8mSW@16s

7km/h

0.8m@16s

7km/h

Wed23

Poor

0.8mSW@15s

8km/h

0.8m@15s

8km/h

Thu24

Poor

0.7mSW@15s

6km/h

0.7m@15s

6km/h

Fri25

Fair

2.3mSW@14s

4km/h

2.3m@14s

4km/h

Sat26

Poor

2.4mSW@14s

7km/h

2.4m@14s

7km/h

Sun27

Fair

1.9mSW@14s

8km/h

1.9m@14s

8km/h

Mon28

Fair

1.8mSW@14s

4km/h

1.8m@14s

4km/h

5+ days out, less certain

View 2-year historical scores →

Today's Conditions

Find Flights

Best session: MorningAM 1 km/h · PM 7 km/h · High tide at 8am (0.9m)

Swell

0.7m

SW(222°)

Score: 2/25

Period

14s

Long period groundswell

Score: 6/25

Wind

6km/h

W(276°)

Score: 17/25

Weather

30°C

0.2mm97%

First light 5:19amSunrise 5:49amSunset 6:00pmLast light 6:30pm

Secondary0.3mConfidence

100%

Location & Conditions

Loading map...

Swell

Wind

Showing forecast for today

Hourly Forecast, Tide & Strike Windows

Strike window: 5:19am–6:30pm · through highIdeal tide: mid to high

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

28°

33°

32°

26°

30°

32°

31°

27°

24°

28°

32°

31°

29°

26°

30°

34°

33°

30°

27°

31°

34°

32°

31°

28°

30°

32°

31°

29°

28°

31°

32°

31°

30°

28°

31°

33°

32°

30°

26°

31°

33°

32°

30°

27°

31°

32°

29°

27°

3m1.5

sec

14s

15s

17s

16s

15s

14s

swell

windkm/h

1g5

2g12

8g23

3g20

12g22

4g6

4g14

11g28

8g24

9g17

7g16

1g11

7g21

5g22

0g9

7g13

4g16

10g25

14g34

1g9

7g14

8g21

6g22

10g27

11g27

1g12

2g8

7g18

12g32

2g26

5g17

2g14

6g23

1g31

7g34

7g25

6g21

8g22

9g30

7g32

10g19

4g19

6g23

10g35

11g38

3g18

5g18

5g20

3g28

6g29

tidem

8:00am0.9m

12:30pm0.8m

7:06am0.9m

11:30am0.7m

4:38pm1.0m

6:40am1.1m

11:40am0.8m

5:10pm1.2m

6:42am1.2m

12:00pm0.7m

5:40pm1.4m

6:46am1.3m

12:24pm0.6m

6:11pm1.4m

12:42am0.2m

7:12am1.6m

12:26pm0.7m

6:34pm1.7m

1:07am0.4m

7:03am1.5m

1:08pm0.3m

7:10pm1.5m

1:22am0.2m

7:22am1.4m

1:37pm0.1m

7:42pm1.4m

1:41am0.2m

7:45am1.4m

2:05pm0.0m

8:14pm1.3m

1:58am0.2m

8:05am1.4m

2:37pm0.0m

Ideal tide (from tide preference)Strike windowNight

Tide times today

8:00 am

High tide - 0.90m

12:30 pm

Low tide - 0.80m

3:10 pm

High tide - 0.82m

Times shown in spot-local time.

Strike Score Breakdown

Poor

Components

Swell Direction6/25

Swell Size2/25

Swell Period6/25

Wind17/25

Raw Score31/100

Adjustments

💨 Gusty Wind-4

📉 Undersized Swell-9

🚫 Undersized Capmax 30

Adjusted Score18/100

Confidence

Multiplier×1.00

Final Score18

Plan Your Strike

Return flights to PVR, 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: S (180°)
Direction range: 170° - 190°
Size range: 1.2m - 2.4m
Ideal size: 1.7m - 2.1m
Height multiplier: 0.97×
Ideal period: 17s+

Wind Requirements

Optimal direction: NE (45°)
Offshore range: 30° - 60°

Tide Requirements

Optimal tide: mid to high

Water temp

28°C

Wetsuit

Boardshorts / Rashguard

Difficulty

4/10

Crowd level

3/10

Access: Drive to San Blas, then to bay. Basic town accommodations.

Frequently Asked Questions

What tide is best at Las Islitas (Matanchen Bay)?

The Las Islitas (Matanchen Bay) profile favors mid to high tide. Compare this preference with the forecast tide and local conditions before choosing a session.

What wind direction is offshore at Las Islitas (Matanchen Bay)?

The Las Islitas (Matanchen Bay) profile uses wind from NE (45°) as its preferred direction, with an offshore range of 30° to 60°. 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 Las Islitas (Matanchen Bay)?

The Las Islitas (Matanchen Bay) scoring profile favors swell from S (170° to 190°), a swell-height range of 1.2m to 2.4m, and a reference period of 17s. 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 Las Islitas (Matanchen Bay)?

The main season at Las Islitas (Matanchen Bay) is Jun-Sep. A secondary window runs May, Oct. Needs specific long-period south swell. Rare but epic.

How do I get to Las Islitas (Matanchen Bay)?

The spot profile lists PVR as a nearby airport. The estimated road transfer is 180 minutes. Drive to San Blas, then to bay. Basic town accommodations.