Islas Marietas Surf Break

Lat Long: 20.68° N 105.61° W

Islas Marietas 48 hour detailed Surf Forecast

Issued: 5 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Islas Marietas sea temperature is
31.8° C
2.3° 

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 (18 Aug):

  • Afternoon surf: Afternoon surf (18 Aug, local time) - 0.5ft (0.2m), 6s period with WNW swell.
  • Evening surf: Evening surf (18 Aug, local time) - 0.5ft (0.2m), 7s period with WNW swell.

The current surf forecast for Islas Marietas at 8PM is: 0.2m 7s primary swell from a West-northwest direction (forecast issued at 05:00pm August 18). An open ocean swell of 1.2m 16s is not directed at the surf break, a second open ocean swell of 0.4m 9s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (CST) & DateWave HeightWave Period
Morning (18 Aug)--
Afternoon (18 Aug)0.5ft (0.2m)6s
Evening (18 Aug)0.5ft (0.2m)7s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Thu night. Warm (max 30°C on Wed afternoon, min 28°C on Tue night). Wind will be generally light.

Tue
18
Wednesday
19
Thursday
20
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
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
WNW
6
0.2
WNW
7
0.2
WNW
7
0.2
WNW
8
0.3
WNW
12
0.2
WNW
7
0.2
WNW
7
0.2
WNW
12
0.4
NW
12
0.4
NW
12
0.3
SW
21
0.3
SW
21
0.4
NW
3
0.3
NW
3
0.4
NW
3
0.4
NW
12
0.4
NW
12
0.4
NW
9
0.8
SSW
13
Wave Graph
Metric surfscale
Energy kJ
4
5
5
6
28
5
5
14
37
36
67
67
4
2
3
35
35
21
0
Wind (km/h)
10
W
5
WNW
5
NNE
10
ENE
5
ENE
10
E
10
ENE
10
NNW
15
NW
10
N
10
NNE
10
NE
10
ENE
10
NE
10
NNE
10
N
15
NW
10
NW
5
NW
Wind State
cross
glassy
off
cross-off
cross-off
cross
cross-off
off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
High Tide
12:01PM1.26m
00:54AM0.81m
12:09PM1.21m
12:00PM1.15m
Low Tide
7:11PM0.62m
4:42AM0.74m
10:43PM0.66m
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:29
7:29
7:28
 mm
1
1
1
Temp °C
29
29
29
29
28
28
28
29
30
30
29
29
28
28
29
29
30
30
30
Feels °C
33
34
34
34
33
33
32
33
33
35
33
33
31
31
32
33
34
34
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 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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