Islas Marietas Surf Break

Lat Long: 20.68° N 105.61° W

Islas Marietas 48 hour detailed Surf Forecast

Issued: 5 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Islas Marietas sea temperature is
31.6° C
2.2° 

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


How big are the waves at Islas Marietas today (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 1.5ft (0.4m), 3s period with NW swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 1.5ft (0.4m), 12s period with NW swell.

The current surf forecast for Islas Marietas at 10AM is: 0.4m 3s primary swell from a Northwest direction (forecast issued at 05:00am August 20). An open ocean swell of 0.9m 14s is not directed at the surf break, a second open ocean swell of 0.4m 10s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (CST) & DateWave HeightWave Period
Morning (20 Aug)1.5ft (0.4m)3s
Afternoon (20 Aug)1.5ft (0.4m)12s
Evening (20 Aug)--

Table - waves today at Islas Marietas. (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 21mm), heaviest during Fri night. Warm (max 30°C on Thu afternoon, min 26°C on Fri night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
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)
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
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)
0.4
NW
3
0.3
SW
19
0.4
NW
3
0.4
NW
12
0.4
NW
12
0.4
NW
9
0.8
SSW
13
0.8
SSW
13
0.7
SW
13
0.7
SW
13
0.7
SW
13
0.7
SSW
13
0.7
SW
13
0.3
SW
18
0.8
SSW
14
0.4
SW
18
0.4
SW
18
0.3
SW
20
0.7
SSW
16
0.7
SSW
13
0.8
SSW
13
0.3
W
5
0.3
WSW
5
Wave Graph
Metric surfscale
Energy kJ
3
57
3
35
35
21
0
0
0
0
0
0
0
49
0
111
112
65
0
0
0
5
5
Wind (km/h)
15
NE
10
NE
10
NE
15
NNW
15
NW
15
WNW
10
NNW
0
N
5
N
5
E
5
E
5
WNW
10
W
10
WSW
5
WSW
5
NNE
15
ENE
15
SE
10
SE
10
SSW
20
SW
20
SW
10
SSE
Wind State
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
glassy
off
glassy
glassy
cross-off
cross
cross
cross
glassy
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
12:00PM1.15m
10:50AM1.10m
3:04PM1.07m
9:40AM1.09m
5:51PM1.13m
Low Tide
00:53AM0.54m
2:42PM1.07m
1:23AM0.42m
1:36PM1.00m
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
clear
clear
clear
part cloud
thunderstorm
mod rain
thunderstorm
rain showers
cloud
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:28
7:27
7:25
 mm
1
2
1
9
3
1
Temp °C
29
28
29
29
30
30
30
29
29
28
28
29
30
30
30
29
27
26
26
29
30
29
29
Feels °C
33
32
34
33
33
33
35
35
35
34
33
34
34
34
35
35
30
28
29
32
31
30
33
  • 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 

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Islas Marietas 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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