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Las Islitas (Matanchen Bay) surfForecast / Nayarit / Mexico
48hr Weather and Surf, issued 11 pm Sunday 17 Aug 2025 CST
How big are the waves at Las Islitas (Matanchen Bay) today?
The current surf forecast for Las Islitas (Matanchen Bay) at 5AM is: 0.6m 17s primary swell from a Southwest direction and 0.5m 13s secondary swell from a Southwest direction (forecast issued at 12:00am August 18). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2ft (0.6m) | 17s |
| Afternoon (18 Aug) | 2ft (0.6m) | 16s |
| Evening (18 Aug) | 3ft (0.9m) | 16s |
Table - waves today at Las Islitas (Matanchen Bay). (Swell directed towards the surf break)
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 371 | 366 | 333 | 322 | 301 | 302 | 299 | 385 | 385 | 380 | 379 | 366 | 360 | 353 | 356 | 444 | 329 | 322 | 320 | 315 | 316 | 308 | 308 | 259 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | glass | glass | glass | cross | cross | cross | cross- off | off | glass | glass | glass | cross- on | cross | cross | glass | glass | glass | glass | glass | cross- on | cross- on | cross |
High Tide / height (m) | 9:01AM 1.21 | 5:49PM 1.40 | 9:00AM 1.28 | 6:56PM 1.50 | 9:13AM 1.33 | |||||||||||||||||||
Low Tide / height (m) | 12:56AM 0.34 | 12:44PM 1.11 | 1:42AM 0.20 | 1:34PM 1.00 | 2:19AM 0.11 | 2:09PM 0.88 | ||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:39 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 7:29 | - | - | - | - | - | - | - | 7:28 | - | - | - | - | - | - | - | 7:27 |
 | | | |  | |  | |  |  | |  |  | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | 1 | 1 | 6 | - | - | - | - | 1 |
| Temp. °C | 27 | 26 | 26 | 26 | 28 | 31 | 31 | 29 | 28 | 27 | 26 | 26 | 28 | 31 | 31 | 29 | 28 | 28 | 27 | 26 | 28 | 30 | 30 | 29 |
| Feels °C (?) | 32 | 30 | 30 | 31 | 33 | 34 | 33 | 33 | 33 | 33 | 31 | 31 | 34 | 35 | 35 | 34 | 34 | 34 | 33 | 31 | 33 | 34 | 34 | 35 |
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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 Las Islitas (Matanchen Bay) (calm at Puerto Vallarta 98 km from Las Islitas (Matanchen Bay)). 0.4m 13s groundswell from the SW with a 0.2m 17s long period groundswell, also from the SW. 2 swells combining to make bigger set waves.
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