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Surf Forecasts:

Islas Marietas surfForecast / Nayarit / Mexico

information circle12 Day Weather and Surf, issued 11 am Thursday 18 Sep 2025 CST
Forecast update in hr  min  s Forecast update imminent
Islas Marietas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Islas Marietas sea temperature is
30.8° C
 (Which is 1.8°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Islas Marietas this week:

The surf forecast for Islas Marietas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 20) at 4AM. The primary swell is predicted to be 0.5m and 13s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Islas Marietas in the next 12 days are 0.9m 16s and forecast to arrive on Tuesday (Sep 23) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 12s period and expected on Thursday (Sep 25) at 7PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 20th Sep)1.5ft (0.5m) 13s
Best Surf 1AM (Sun 21st Sep)2ft (0.6m) 14s
Most Powerful 4AM (Tue 23rd Sep)3ft (0.9m) 16s

Table - best surf conditions forecast for Islas Marietas over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
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Short Range Forecast Heavy rain (total 31mm), heaviest during Fri night. Warm (max 29°C on Thu morning, min 27°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Tue night. Warm (max 29°C on Sun morning, min 28°C on Sun morning). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
2
1
0
1
2
1
2
2
1
2
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SSW
0.4
SW
0.3
SW
0.9
SSW
0.6
SW
0.4
SW
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.8
SW
0.8
SW
0.8
SW
0.9
SW
0.8
SW
0.7
SW
Period(s) (?)14881313137714131313181616161514141413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)02490138627155169142142144192216206352266297346289173
Wind
(km/h)
10
ESE
10
SW
10
SE
5
ESE
15
SW
5
SSE
5
E
10
W
5
WNW
5
NNE
15
NW
10
NW
10
NNE
20
NW
10
NW
5
ENE
10
W
5
S
10
S
15
SW
10
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		crosscross-
on		oncrosscrossglassoffcross-
off		cross-
off		offcross-
off		cross-
off		glasscrossglassoncross-
on		cross-
on
High Tide
/ height (m)
7:46PM
1.38
8:50AM
1.32
8:19PM
1.43
9:03AM
1.36
8:50PM
1.44
9:16AM
1.40
9:19PM
1.42
9:30AM
1.43
9:47PM
1.37
9:44AM
1.44
10:14PM
1.29
9:58AM
1.44
10:40PM
1.19
Low Tide
/ height (m)
2:08PM
0.66
2:27AM
0.18
2:31PM
0.55
2:49AM
0.21
2:54PM
0.45
3:08AM
0.27
3:17PM
0.37
3:25AM
0.34
3:40PM
0.31
3:40AM
0.43
4:04PM
0.29
3:53AM
0.51
4:28PM
0.29
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise6:50--6:50--6:50--6:50--6:50--6:50--6:50--
Sunset-7:01--7:00--7:00--6:59--6:58--6:58--6:57-
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
clear
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
thunderstorm
part cloud
Rain (mm)
-35-217--4--52-52-6-1-
Temp. °C292929292928282929292929292929292929292928
Feels °C (?)323333323131333434343233333233353434333130
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Nayarit

  1. weather stationWind Update Previously calm conditions have become cross-shore at Islas Marietas (light winds from the WSW at Puerto Vallarta Airport 38 km from Islas Marietas). 0.2m 8s swell from the W to make surfable waves.

    1 hour 12 minutes ago Islas Marietas
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<
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38 km away, 1 h 12 min ago

19 km/h
WSW
0.0
30.8
Air / Water (°C)
Please reload the page to see if there are any updates.

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.

View detailed surf forecast for Islas Marietas at:
surf-forecast.com

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 12 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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