Surf Forecasts:
Ostiones surf forecast from 5 Aug 2026:
- Best quality surf: Friday 7 Aug, 3AM (local time) - 2.5ft (0.7m), 13s period, SW swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 6AM (local time) - 3ft (0.9m), 16s period, SW swell with 371 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 9PM (local time) - 1.5ft (0.5m), 14s period with SW swell.
Best Forecast Surf Conditions for Ostiones this week:
The surf forecast for Ostiones over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 05) at 9PM. The primary swell is predicted to be 0.5m and 14s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ostiones in the next 16 days are 0.9m 16s and forecast to arrive on Saturday (Aug 08) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 5th Aug) | 1.5ft (0.5m) 14s |
| Best Surf | 3AM (Fri 7th Aug) | 2.5ft (0.7m) 13s |
| Most Powerful | 6AM (Sat 8th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Ostiones over the next 16 days.
The Lowdown
G’day, Rusty here. Look, it’s been a bit quiet, but we’ve got some clean windows coming up at Ostiones. The water’s sittin’ at a balmy 89°, which is a touch warmer than normal for this time of year – you won’t be needing a wetsuit, that’s for sure.
The pattern is small, mainly around 2ft to 3ft, but with consistent groundswell from the SW that starts to push better energy by the end of the week. Don’t expect any bombs, but if you pick the right mornings, there’s fun on offer.
Wednesday morning (5th) is glassy with a 2ft SW swell, 14-second period, and clean conditions. The combined energy is weak (139), but for a tiny wave, it’s as good as it gets. Thursday morning (6th) is similar – glassy again with 2ft SW, and the energy starting to build a touch (195).
Friday morning (7th) kicks things up a notch – 2ft SW, but the period jumps to 18 seconds and energy hits 373 (moderate). Light cross-off wind, clean faces. That’s a proper little groundswell pulse. Saturday morning (8th) sees a slight bump to 3ft SW, 16-second period, offshore wind, and clean conditions – energy is 437 (moderate). This is your best bet of the week for a tidy, clean session.
Sunday morning (9th) holds with a 2ft SW, glassy conditions, and moderate energy (252). Another great morning to get out. Monday (10th) offers a total glass-off with 2ft SW and no wind at all – magical. Tuesday (11th) is clean again with a 2ft SW, 18-second period, and energy up to 474, just watch for a risk of thunderstorms.
The standout for the whole outlook? Thursday morning (14th) – 3ft SW, 18-second period, cross-off wind, very clean, and energy hits 656 (strong). This is the pick of the bunch. Saturday morning (15th) is a bit messier with cross-shore wind and marginal conditions.
By Wednesday morning (20th), we see a shift in direction to SSW with 3ft waves, 17-second period, energy at 548 (strong), and cross-off wind – that’s another cracker, but it’s a long way out, so keep an eye on it.
Ostiones is a reef break, and these long-period SW swells will wrap in nicely. Crowds can show up sometimes, but with these sizes, you’ll have room to move. The afternoons are all blown out with onshore W or NW wind, so mornings are where it’s at.
Rusty
Short Range ForecastModerate rain (total 15mm), heaviest on Fri morning. Warm (max 30°C on Wed afternoon, min 26°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Sat night. Warm (max 29°C on Sat morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
AM | 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 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 19 | SSW 14 | SW 18 | SW 18 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 103 | 100 | 95 | 113 | 140 | 166 | 249 | 362 | 264 | 367 | 276 | 217 | 211 | 197 | 178 | 180 | 236 | 133 | 307 | 307 | 190 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | glassy | on | cross | cross-off | on | glassy | off | cross-on | cross | glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 1:13PM1.33m | 2:20PM1.30m | 4:11PM1.31m | 8:44AM1.11m | 5:46PM1.38m | 8:53AM1.20m | 6:53PM1.49m | 9:14AM1.26m | 7:46PM1.58m | 9:38AM1.32m | 8:31PM1.63m | ||||||||||
Low Tide | 9:14PM0.58m | 11:35PM0.45m | 00:49AM0.28m | 12:12PM1.04m | 1:38AM0.13m | 1:19PM0.94m | 2:19AM0.02m | 2:04PM0.83m | 2:56AM-0.03m | 2:44PM0.73m | |||||||||||
 | |  | | |  |  | |  | | | |  | |  | | | | | | | |
 | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — |
 | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:36 | — | — | 7:35 | — | — | 7:35 | — | — | 7:34 | — |
mm | — | — | — | — | — | 2 | 4 | — | 9 | — | 1 | 21 | — | — | — | — | — | 7 | 2 | — | 2 |
Temp °C | 29 | 30 | 29 | 29 | 30 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 30 | 28 |
Feels °C | 33 | 33 | 34 | 33 | 33 | 33 | 34 | 33 | 35 | 33 | 31 | 31 | 30 | 30 | 32 | 33 | 31 | 32 | 31 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 14 | SW 18 | SW 18 | SW 17 |
| kJ | 103 | 100 | 95 | 113 | 140 | 136 | 124 | 362 | 264 | 367 | 276 | 217 | 211 | 197 | 178 | 180 | 178 | 127 | 307 | 307 | 190 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 11 | SW 11 | SSW 11 | SW 18 | SW 18 | SW 18 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | NW 5 | SW 21 | SW 20 | SW 19 | SW 19 | SW 14 | SSW 13 | SW 13 |
| kJ | 34 | 32 | 33 | 22 | 113 | 166 | 249 | 122 | 89 | 68 | 69 | 43 | 18 | 4 | 72 | 136 | 236 | 133 | 164 | 114 | 104 |
Swell 3 Height (m) Direction Period (s) | W 5 | S 9 | SW 20 | SW 20 | W 6 | WNW 3 | — | S 13 | WNW 4 | WNW 5 | SW 23 | WNW 5 | SW 22 | SW 22 | WNW 5 | WNW 5 | WNW 6 | NW 5 | W 13 | W 12 | NW 12 |
| kJ | 2 | 6 | 60 | 60 | 1 | 1 | — | 3 | 2 | 2 | 21 | 2 | 18 | 73 | 3 | 3 | 3 | 1 | 3 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | — | WNW 5 | — | — | WNW 4 | — | — | — | — | — | W 5 | — | NNW 5 | — | — | — | — | — | — | — | — |
| kJ | — | 2 | — | — | 2 | — | — | — | — | — | 4 | — | 5 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 15 | 3 | 3 | 15 | 3 | 3 | 15 | 3 | 3 | 42 | 55 | 3 | 15 | 3 | 3 | 15 | 3 | 3 | 15 | 3 |
Best forecast wave conditions in Nayarit | |||||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||||
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Information about the Ostiones Surf forecast
The above surf forecast table for Ostiones provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ostiones can be found by selecting the local surf guide option on the grey menu. Our Ostiones 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 (Ostiones) 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 Ostiones 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.
Ostiones is 32 km (20 miles) from the city of Ixtapa. If you plan a holiday in Nayarit, look for hotels and other accommodation in Ixtapa. Ixtapa has rooms for a wide range of budgets as well as car hire and transport links.
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