Surf Forecasts:
Islas Marietas surf forecast from 20 Oct 2026:
- Best quality surf: Tuesday 20 Oct, 12AM (local time) - 4.5ft (1.3m), 8s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 26 Oct, 3PM (local time) - 2.5ft (0.8m), 15s period, SW swell with 255 kJ wave energy.
- Next surfable swell (1★+): Tuesday 20 Oct, 12AM (local time) - 4.5ft (1.3m), 8s 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 Tuesday (Oct 20) at 12AM. The primary swell is predicted to be 1.3m and 8s 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 0.8m 15s and forecast to arrive on Monday (Oct 26) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 14s period and expected on Tuesday (Oct 27) at 12AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 20th Oct) | 4.5ft (1.3m) 8s |
| Best Surf | 12AM (Tue 20th Oct) | 4.5ft (1.3m) 8s |
| Most Powerful | 3PM (Mon 26th Oct) | 2.5ft (0.8m) 15s |
Table - best surf conditions forecast for Islas Marietas over the next 16 days.
Short Range ForecastMostly dry. Warm (max 29°C on Mon afternoon, min 27°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Thu night. Warm (max 29°C on Thu afternoon, min 27°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Mon 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 8 | SW 8 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 5 | WNW 11 | WSW 5 | WNW 15 | WNW 15 | NNW 11 | WNW 13 | W 6 | WNW 6 | WNW 5 | WNW 12 | NW 10 | WNW 6 | SW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 182 | 216 | 51 | 20 | 15 | 15 | 10 | 13 | 4 | 21 | 21 | 11 | 17 | 9 | 6 | 6 | 53 | 25 | 3 | 142 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | on | cross-on | glassy | glassy | cross-off | glassy | glassy | cross-off | off | glassy | cross-on | on | cross-on | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 5:01PM0.97m | 7:31AM1.15m | 6:10PM1.08m | 7:22AM1.22m | 6:52PM1.19m | 7:28AM1.31m | 7:29PM1.29m | 7:41AM1.40m | 8:05PM1.36m | 7:59AM1.49m | 8:42PM1.39m | 8:20AM1.57m | 9:20PM1.37m | |||||||
Low Tide | 00:27AM0.49m | 1:15PM0.81m | 00:48AM0.45m | 1:18PM0.66m | 1:10AM0.42m | 1:34PM0.49m | 1:33AM0.41m | 1:58PM0.32m | 1:57AM0.43m | 2:26PM0.17m | 2:22AM0.48m | 2:58PM0.05m | 2:48AM0.54m | |||||||
 |  | |  |  | | | | | |  | | | | |  |  | | | | |
 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — |
 | 6:35 | — | — | 6:34 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | 5 | — | — | 7 | — | — | — | — | — | — |
Temp °C | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 |
Feels °C | 32 | 32 | 31 | 32 | 33 | 33 | 32 | 33 | 34 | 33 | 32 | 33 | 31 | 32 | 33 | 30 | 32 | 30 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 15 | SSE 16 | S 14 | S 14 | S 14 |
| kJ | 983 | 845 | 869 | 732 | 822 | 668 | 659 | 569 | 847 | 751 | 1230 | 966 | 763 | 602 | 515 | 411 | 1622 | 1212 | 1145 | 1129 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 6 | SW 6 | SW 6 | SSW 20 | SSW 19 | SSW 18 | SSW 13 | SSW 13 | WNW 15 | S 20 | WNW 13 | SSW 18 | SSE 14 | S 14 | SSW 14 | SSW 14 | SSW 13 | SW 13 |
| kJ | 182 | 216 | 51 | 20 | 15 | 432 | 411 | 897 | 242 | 269 | 21 | 30 | 17 | 106 | 215 | 405 | 236 | 232 | 229 | 142 |
Swell 3 Height (m) Direction Period (s) | NW 11 | NW 15 | WNW 14 | SSW 21 | SSW 21 | SW 6 | WSW 5 | WNW 11 | WSW 5 | WNW 15 | NNW 11 | NNW 11 | WNW 10 | W 6 | WNW 6 | WNW 5 | WNW 12 | NW 10 | WNW 6 | NW 8 |
| kJ | 5 | 8 | 21 | 88 | 147 | 15 | 10 | 13 | 4 | 21 | 11 | 11 | 9 | 9 | 6 | 6 | 53 | 25 | 3 | 17 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WNW 4 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 15 | 0 | 11 | 15 | 11 | 11 | 14 | 11 | 11 | 14 | 11 | 11 | 15 | 19 | 11 | 14 | 0 | 11 | 11 | 12 |
Best forecast wave conditions in Nayarit | ||||||||||||||||||||
Best forecast wave conditions in Mexico | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.
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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