San Blas Surf Break

Lat Long: 21.53° N 105.28° W

San Blas 48 hour detailed Surf Forecast

Issued: 5 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's San Blas sea temperature is
31.8°C
2.5° 

San Blas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at San Blas today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 3ft (0.9m), 17s period with SW swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 3ft (0.9m), 17s period with SW swell.
  • Evening surf: Evening surf (21 Sep, local time) - 3ft (0.9m), 16s period with SW swell.

The current surf forecast for San Blas at 12PM is: 0.9m 17s primary swell from a Southwest direction and 0.5m 11s secondary swell from a Southwest direction (forecast issued at 05:00am September 21). The wind direction is predicted to be glassy and the swell rating is 3.

Time (CST) & DateWave HeightWave Period
Morning (21 Sep)3ft (0.9m)17s
Afternoon (21 Sep)3ft (0.9m)17s
Evening (21 Sep)3ft (0.9m)16s

Table - waves today at San Blas. (Swell directed towards the surf break)


Short Range Forecast

Moderate rain (total 10mm), heaviest on Mon morning. Warm (max 31°C on Tue morning, min 26°C on Mon night). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
3
2
3
3
1
2
3
2
2
2
2
1
0
1
2
2
2
2
2
1
0
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
16
0.9
SW
16
0.8
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
16
0.8
SW
16
0.8
SW
16
0.8
SW
15
0.8
SW
15
0.9
SW
15
0.8
SW
15
0.8
SW
15
0.8
SW
14
Wave Graph
Metric surfscale
Energy kJ
493
493
493
493
487
465
443
432
306
421
421
421
421
421
421
295
287
269
262
314
255
255
251
Wind (km/h)
5
SE
5
SE
0
SE
0
WSW
15
W
10
WNW
5
NE
0
E
5
NNE
5
ESE
5
E
5
WNW
10
W
10
SW
0
E
5
ESE
5
ESE
5
E
5
ESE
10
WSW
10
W
10
W
0
SSE
Wind State
glassy
cross
glassy
glassy
cross-on
cross
glassy
glassy
off
glassy
glassy
cross-on
cross-on
on
glassy
cross-off
cross-off
glassy
glassy
on
cross-on
cross-on
glassy
High Tide
8:28AM1.25m
6:35PM1.29m
8:19AM1.31m
7:13PM1.42m
8:24AM1.39m
7:47PM1.52m
Low Tide
1:21AM0.43m
1:35PM0.95m
1:39AM0.35m
1:43PM0.82m
1:58AM0.29m
2:00PM0.67m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
thunderstorm
cloud
thunderstorm
part cloud
part cloud
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:55
 mm
1
2
4
1
1
1
Temp °C
27
26
28
30
29
30
27
27
26
26
28
31
31
30
28
27
26
26
28
31
31
30
29
Feels °C
32
30
34
35
32
34
32
33
30
31
33
34
34
35
34
32
30
31
33
34
35
35
35
  • 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 San Blas 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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