Las Islitas (Matanchen Bay) Surf Break

Lat Long: 21.51° N 105.25° W

Las Islitas (Matanchen Bay) 48 hour detailed Surf Forecast

Issued: 5 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Las Islitas (Matanchen Bay) sea temperature is
31.7°C
2.2° 

Las Islitas (Matanchen Bay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Las Islitas (Matanchen Bay) today (28 Aug):

  • Afternoon surf: Afternoon surf (28 Aug, local time) - 3.5ft (1.0m), 17s period with SW swell.
  • Evening surf: Evening surf (28 Aug, local time) - 3.5ft (1.1m), 17s period with SW swell.

The current surf forecast for Las Islitas (Matanchen Bay) at 8PM is: 1.0m 17s primary swell from a Southwest direction and 0.4m 7s secondary swell from a West-southwest direction (forecast issued at 05:00pm August 28). The wind direction is predicted to be cross-onshore.

Time (CST) & DateWave HeightWave Period
Morning (28 Aug)--
Afternoon (28 Aug)3.5ft (1.0m)17s
Evening (28 Aug)3.5ft (1.1m)17s

Table - waves today at Las Islitas (Matanchen Bay). (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 32mm), heaviest during Sat night. Warm (max 32°C on Fri afternoon, min 25°C on Sat night). Wind will be generally light.

Fri
28
Saturday
29
Sunday
30
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
1
2
3
3
3
3
3
2
1
2
2
3
3
2
0
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SW
17
1
SW
17
1.1
SW
17
1.1
SW
17
1.2
SW
16
1
SW
16
1.3
SSW
16
1.1
SW
16
1.1
SW
16
1
SW
16
1
SW
15
1
SW
15
1.3
SSW
15
1.3
SSW
14
1
SW
14
1.2
SW
14
1.2
SW
14
1.2
SW
14
0.9
SW
14
Wave Graph
Metric surfscale
Energy kJ
594
594
687
702
757
502
843
636
628
471
447
435
720
701
407
606
606
606
297
Wind (km/h)
15
W
10
WSW
5
SW
5
ESE
5
NE
5
ENE
5
NNE
5
W
10
SW
5
SSW
5
E
5
E
5
ENE
5
E
5
SSE
15
SSW
10
SW
5
WSW
5
E
Wind State
cross-on
cross-on
on
glassy
glassy
cross-off
glassy
glassy
cross-on
on
glassy
glassy
glassy
cross-off
glassy
on
cross-on
cross-on
glassy
High Tide
9:35PM1.63m
10:12AM1.54m
10:07PM1.57m
10:31AM1.57m
Low Tide
3:35PM0.51m
3:57AM0.24m
4:06PM0.44m
4:18AM0.33m
4:39PM0.40m
part cloud
part cloud
thunderstorm
thunderstorm
cloud
thunderstorm
cloud
cloud
cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:21
7:20
7:19
 mm
4
3
1
2
5
1
3
2
4
1
1
4
Temp °C
32
30
28
27
27
26
27
30
30
28
27
27
26
25
27
28
29
29
26
Feels °C
35
35
33
32
33
30
32
35
34
33
32
32
31
29
32
32
33
34
31
  • 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 

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 Islitas (Matanchen Bay) 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.


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