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Surf Forecasts:
Islas Marietas surfForecast / Nayarit / Mexico
48hr Weather and Surf, issued 5 am Thursday 18 Sep 2025 CSTForecast 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)| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | - | - |
| Afternoon (18 Sep) | 1.5ft (0.4m) | 8s |
| Evening (18 Sep) | 1.5ft (0.4m) | 8s |
Table - waves today at Islas Marietas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 14 | 14 | 8 | 8 | 8 | 8 | 8 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 14 | 15 | 15 | 7 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 30 | 0 | 0 | 34 | 24 | 17 | 16 | 9 | 0 | 0 | 0 | 0 | 138 | 87 | 62 | 85 | 83 | 77 | 0 | 0 | 0 | 0 | 36 | 169 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross- on | glass | glass | cross- on | cross | cross- off | cross- off | glass | cross- on | cross- on | glass | glass | glass | glass | cross | glass | cross | cross- off | cross- off | glass |
High Tide / height (m) | 8:40AM 1.27 | 7:46PM 1.38 | 8:50AM 1.32 | 8:19PM 1.43 | 9:03AM 1.36 | 8:50PM 1.44 | ||||||||||||||||||
Low Tide / height (m) | 2:02AM 0.19 | 2:08PM 0.66 | 2:27AM 0.18 | 2:31PM 0.55 | 2:49AM 0.21 | 2:54PM 0.45 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:00 | - | - |
 |  |  | | |  | | | | |  | | | |  | | | | | | | | |  | |
Rain (mm) | 1 | - | - | - | - | 1 | 2 | 1 | 3 | 2 | - | - | - | - | - | 4 | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 26 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 27 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 29 | 29 |
| Feels °C (?) | 30 | 28 | 32 | 32 | 33 | 34 | 34 | 32 | 30 | 28 | 30 | 34 | 32 | 34 | 33 | 33 | 33 | 32 | 33 | 33 | 33 | 33 | 34 | 35 |
- 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)
Recent Eyeball Surf Reports for Nayarit
Continuing clean conditions at Islas Marietas (light winds from the ENE at Puerto Vallarta Airport 38 km from Islas Marietas). 0.6m 8s swell from the SW with a 0.3m 10s swell, also from the SW. 2 swells combining to make bigger set waves.
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38 km away, 2 h 11 min ago
6 km/h
ENE
0.0
30.8
Air / Water (°C)
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