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Las Islitas (Matanchen Bay)

San Blas, Mexico
🌀Strong rips🚶Difficult access

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.

3-Day Forecast
Today
30
12
Poor
0.3m
@16s
13km/h
Tue
31
15
Poor
0.4m
@16s
13km/h
Wed
1
3
Poor
0.4m
@15s
14km/h
+7
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Today's Conditions

Swell
0.3m
WSW(244°)
Score: 1/25
Period
16s
Long period groundswell
Score: 21/25
Wind
13km/h
NW(313°)
Score: 5/25
Weather
26°C
0.0mm69%
Windswell Component
0.1mW@1s
Secondary Swell
0.1mW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 8 km/h NNE|PM: 13 km/h WNW
8 km/h vs 13 km/h afternoon
High tide at 6am (0.8m)

Location & Conditions

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

Tide Times

12:38 am
Low tide - -0.23m
6:34 am
High tide - 0.82m
12:53 pm
Low tide - -0.44m
7:03 pm
High tide - 0.82m
Times shown in spot-local time.

Strike Score Breakdown

12
Poor
Components
Swell Direction0/25
Swell Size1/25
Swell Period21/25
Wind5/25
Raw Score27/100
Adjustments
⚠️ Weak Component-15
🚫 Undersized Capmax 15
Adjusted Score12/100
Confidence
Multiplier×1.00
Final Score12
👥 Semana Santa

Spot Details

Swell Requirements

Optimal direction
S (180°)
Direction range
170° - 190°
Size range
1.2m - 2.4m
Ideal size
2.0m
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

👥 Semana Santa (Mar 30Apr 10) — expect extra crowds

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

Best Season

Peak: Jun-Sep

Secondary: May, Oct

Needs specific long-period south swell. Rare but epic.

Getting There

Airport
PVR
Drive time
180 min
Data quality
verified

Strike Log

Community Discussion