Islas Marietas surfForecast / Nayarit / Mexico

information circle12 Day Weather and Surf, issued 5 am Saturday 20 Dec 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
26.9° C
(Which is 1.1°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 (Dec 20) at 12PM. The primary swell is predicted to be 0.5m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Islas Marietas in the next 12 days are 0.5m 16s and forecast to arrive on Monday (Dec 22) at 6PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 11s period and expected on Saturday (Dec 20) at 12PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sat 20th Dec)1.5ft (0.5m) 12s
Best Surf12PM (Sat 20th Dec)1.5ft (0.5m) 12s
Most Powerful 6PM (Mon 22nd Dec)1.5ft (0.5m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 25°C on Sat afternoon, min 23°C on Sat morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Tue afternoon, min 23°C on Tue morning). Wind will be generally light.

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
1
0
1
0
0
0
1
1
0
1
1
1
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
WNW
0.5
WNW
0.5
WNW
0.5
WNW
0.4
WNW
0.3
WNW
0.3
WNW
0.3
WNW
0.5
SW
0.5
SW
0.5
SW
0.5
SW
0.5
SW
0.5
SW
0.3
NW
0.5
NW
0.6
WNW
0.6
NW
0.5
NW
0.5
NW
0.5
NW
Period(s) (?)12121112121111101614141413134666666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)82857179532322211211031039387872162423151516
Wind
(km/h)
15
NE
20
N
15
NNE
20
NNE
15
N
5
ESE
10
ENE
10
W
5
NE
5
NE
10
WSW
10
NNE
10
NE
15
NNW
15
NNE
10
NE
10
NW
5
NE
5
SE
15
WSW
5
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffcross-
off
offcrosscross-
off
crosscross-
off
glasscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glassglasscross-
on
glass
High Tide
/ height (m)
10:40PM
1.12
9:10AM
1.49
11:11PM
1.10
9:38AM
1.46
11:43PM
1.08
10:07AM
1.41
12:18AM
1.07
10:40AM
1.32
12:59AM
1.08
11:20AM
1.20
1:47AM
1.11
12:21PM
1.05
2:45AM
1.15
Low Tide
/ height (m)
3:55PM
0.08
3:12AM
0.78
4:25PM
0.10
3:39AM
0.79
4:54PM
0.15
4:11AM
0.80
5:25PM
0.23
4:50AM
0.82
5:58PM
0.32
5:43AM
0.84
6:33PM
0.43
7:06AM
0.85
7:16PM
0.56
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sunrise7:33--7:33--7:33--7:35--7:35--7:35--7:35--
Sunset-6:25--6:25--6:27--6:27--6:28--6:28--6:29-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C242524242524242424242523242423242423242524
Feels °C (?)232424232525252527242625232323252525252626
  • Map Icons:
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  • 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 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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