Islas Marietas Surf Break

Lat Long: 20.68° N 105.61° W

Islas Marietas Surf Forecast and Surf Report

Issued: 5 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Islas Marietas sea temperature is
31.9° C
2.6° 

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


Islas Marietas surf forecast from 20 Aug 2026:

  • Best quality surf: Monday 24 Aug, 3AM (local time) - 2ft (0.6m), 18s period, SW swell with glassy winds.
  • Most powerful swell: Tuesday 25 Aug, 12AM (local time) - 3ft (0.9m), 17s period, SW swell with 414 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 12AM (local time) - 1.5ft (0.4m), 18s period with SW swell.

Best Forecast Surf Conditions for Islas Marietas this week:

The surf forecast for Islas Marietas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 12AM. The primary swell is predicted to be 0.4m and 18s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Islas Marietas in the next 16 days are 0.9m 17s and forecast to arrive on Tuesday (Aug 25) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 16s period and expected on Saturday (Aug 22) at 6AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 22nd Aug)1.5ft (0.4m) 18s
Best Surf 3AM (Mon 24th Aug)2ft (0.6m) 18s
Most Powerful12AM (Tue 25th Aug)3ft (0.9m) 17s

Table - best surf conditions forecast for Islas Marietas over the next 16 days.


Short Range Forecast

Light rain (total 7mm), mostly falling on Thu night. Warm (max 30°C on Wed afternoon, min 26°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 15mm), heaviest on Sat night. Warm (max 30°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light.

Wed
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
1
0
0
0
1
1
0
0
2
2
2
0
1
Swell
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
12
0.4
NW
3
0.4
NW
3
0.4
NW
12
0.8
SSW
13
0.7
SW
13
0.3
WNW
9
0.4
SW
18
0.7
SSW
16
0.8
SSW
13
0.5
SW
16
0.6
SW
18
0.6
SW
18
0.7
SW
18
0.7
SW
17
0.9
SW
16
0.9
SW
17
0.6
SW
16
0.5
SW
7
0.9
SW
16
Wave Graph
Metric surfscale
Energy kJ
37
2
3
49
0
0
16
111
0
0
122
255
255
0
0
395
414
211
24
367
Wind (km/h)
15
NW
10
N
10
NE
15
NNW
0
SSE
15
SSW
10
SW
5
NNE
5
E
20
SW
15
E
10
SE
15
WSW
5
SW
5
ENE
10
NW
10
NNE
15
NNE
15
NW
10
E
Wind State
cross-off
off
cross-off
cross-off
glassy
on
cross-on
cross-off
cross
cross-on
cross
cross-on
cross
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
12:00PM1.15m
10:50AM1.10m
3:04PM1.07m
9:40AM1.09m
5:51PM1.13m
9:08AM1.11m
6:46PM1.23m
9:03AM1.15m
7:25PM1.33m
9:09AM1.20m
7:58PM1.41m
Low Tide
10:43PM0.66m
00:53AM0.54m
2:42PM1.07m
1:23AM0.42m
1:36PM1.00m
1:47AM0.32m
1:42PM0.92m
2:09AM0.24m
1:56PM0.83m
2:30AM0.17m
2:16PM0.74m
2:51AM0.14m
part cloud
part cloud
clear
clear
thunderstorm
thunderstorm
part cloud
rain showers
part cloud
part cloud
thunderstorm
clear
clear
thunderstorm
part cloud
clear
part cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:43
6:43
6:43
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:29
7:28
7:27
7:25
7:25
7:24
7:23
 mm
3
2
2
13
2
4
Temp °C
30
29
29
30
30
28
29
28
29
30
29
29
30
29
28
29
29
29
29
29
Feels °C
34
33
32
33
36
31
32
32
32
32
32
32
34
33
32
32
32
33
32
34
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Islas Marietas Surf forecast

The above surf forecast table for Islas Marietas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Islas Marietas can be found by selecting the local surf guide option on the grey menu. Our Islas Marietas surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Islas Marietas) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Islas Marietas may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Islas Marietas is 40 km (25 miles) from Puerto Vallarta. If you plan a holiday in Nayarit, look for hotels and other accommodation in Puerto Vallarta. Puerto Vallarta has rooms for a wide range of budgets as well as car hire and transport links.

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