Surf Forecasts:
Zepotonengo surf forecast from 18 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 9PM (local time) - 4ft (1.2m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 9PM (local time) - 4ft (1.2m), 16s period, SSW swell with 657 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 9PM (local time) - 4ft (1.2m), 16s period with SSW swell.
Best Forecast Surf Conditions for Zepotonengo this week:
The surf forecast for Zepotonengo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 9PM. The primary swell is predicted to be 1.2m and 16s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Zepotonengo in the next 16 days are 1.2m 16s and forecast to arrive on Tuesday (Aug 18) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Aug 24) at 12AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 18th Aug) | 4ft (1.2m) 16s |
| Best Surf | 9PM (Tue 18th Aug) | 4ft (1.2m) 16s |
| Most Powerful | 9PM (Tue 18th Aug) | 4ft (1.2m) 16s |
Table - best surf conditions forecast for Zepotonengo over the next 16 days.
The Lowdown
Alright, let’s break it down in feet and miles per hour. Rusty here, and Zepotonengo’s got a bit of a slow burn to some real good days. The water’s a warm 88°, a touch toastier than normal for this time of year – feels like a bath.
First decent window is Tuesday the 18th. Tuesday morning is clean with a 4ft SW swell, period around 14 seconds, and a light offshore breeze from the NW at 3 mph. The energy is moderate (554). Nothing huge, but tidy and fun for a beginner.
Wednesday the 19th is a dud with onshore wind, but Friday the 21st morning turns glassy with a 3ft S swell (302 energy). You could get a few waist-high peelers if you’re patient. Saturday the 22nd morning is the first real standout. Glassy, clean conditions with a 4ft S swell (522 energy), period at 10 seconds. That’s good-size fun and clean – one of the best on offer.
Sunday the 23rd morning is glassy again, but the swell drops to 2ft. The period jumps to 18 seconds – that’s a long-period groundswell, bringing real shape and power, but it’ll be inconsistent with wide-set waves. Quality over quantity.
After a few days of tiny, clean mornings, we hit the big one. Saturday the 29th of August into Sunday the 30th. Saturday morning shows 5ft SSW swell with a 16-second period, strong energy (1175), and light cross-shore wind. By Sunday the 30th morning, the swell holds at 5ft from the SSW, 15-second period, and a clean cross-offshore wind from the WNW at 6 mph. Energy is strong (1023). That’s expert territory – punchy, powerful, and groomed. This is your absolute standout.
Monday the 31st morning is similar – another excellent session for experienced surfers. After that, swells drop back, but quality holds into early September with glassy conditions and longer-period groundswell. The 2nd of September morning is glassy with a 3ft SW swell and a 16-second period – another real clean session.
So, bottom line: Saturday the 29th, Sunday the 30th, and Monday the 31st are your golden days. Saturday the 22nd is also a cracking fun-sized clean day. Crowds can show up sometimes, so on those standouts, paddle out early.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 31°C on Tue morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 22mm), heaviest during Sat night. Warm (max 31°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 15 | SSW 16 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 13 | S 10 | S 11 | SSW 16 | S 10 | SSW 14 | SSW 14 | SW 18 | SW 18 | SW 18 | SW 18 | SW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 482 | 503 | 657 | 489 | 362 | 347 | 232 | 219 | 175 | 118 | 178 | 347 | 273 | 321 | 299 | 334 | 323 | 465 | 316 | 395 | 475 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | off | cross-on | on | off | cross | cross-on | cross-off | glassy | on | glassy | glassy | cross-on | cross | glassy | cross | cross-off | cross-off | cross-on | off |
High Tide | 6:52PM0.92m | 7:30AM1.13m | 7:34PM0.86m | 8:14AM1.09m | 8:16PM0.80m | 8:58AM1.04m | 8:58PM0.75m | 9:44AM1.00m | 9:43PM0.71m | 10:33AM0.97m | 10:35PM0.68m | 11:25AM0.95m | 11:33PM0.67m | ||||||||
Low Tide | 1:04PM0.17m | 00:57AM0.06m | 1:50PM0.20m | 1:36AM0.09m | 2:36PM0.24m | 2:15AM0.13m | 3:23PM0.28m | 2:54AM0.16m | 4:12PM0.31m | 3:37AM0.20m | 5:06PM0.33m | 4:26AM0.23m | 6:03PM0.34m | ||||||||
 |  |  | |  |  | | | | | | | | | | | | | | | | |
 | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:49 | — | — | 6:47 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — |
mm | — | 1 | — | — | — | 1 | — | — | 1 | — | — | — | — | — | 21 | — | — | 1 | — | — | 1 |
Temp °C | 31 | 31 | 29 | 31 | 30 | 29 | 31 | 31 | 28 | 30 | 30 | 28 | 30 | 31 | 28 | 29 | 30 | 28 | 30 | 30 | 28 |
Feels °C | 33 | 33 | 33 | 33 | 32 | 34 | 33 | 33 | 32 | 32 | 33 | 33 | 32 | 34 | 33 | 32 | 33 | 31 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 15 | SSW 16 | SW 15 | SSW 14 | SSW 14 | SSE 9 | S 10 | S 10 | S 10 | SE 9 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SW 18 | SW 16 | SSW 16 |
| kJ | 482 | 503 | 657 | 489 | 362 | 347 | 129 | 116 | 121 | 118 | 145 | 282 | 273 | 279 | 206 | 164 | 156 | 151 | 316 | 395 | 475 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | S 10 | S 9 | SSE 9 | S 9 | SSW 14 | SSW 13 | SW 13 | SE 8 | S 11 | SSW 16 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 18 | SSW 13 | SSE 9 | SSE 9 |
| kJ | 51 | 51 | 66 | 103 | 129 | 97 | 232 | 219 | 175 | 80 | 178 | 347 | 120 | 321 | 299 | 229 | 282 | 465 | 183 | 86 | 65 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | ESE 8 | ESE 7 | W 10 | E 5 | SW 19 | SE 9 | SE 8 | SSW 12 | SSW 14 | SE 8 | SW 16 | SW 20 | ESE 8 | SW 18 | SW 18 | SSW 13 | SSE 9 | SSW 12 | SSW 12 |
| kJ | 15 | 28 | 22 | 4 | 2 | 11 | 14 | 67 | 46 | 104 | 140 | 62 | 129 | 97 | 32 | 334 | 323 | 212 | 92 | 133 | 96 |
Wind waves Height (m) Direction Period (s) | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 6 | WNW 3 | — | SW 4 | W 4 |
| kJ | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 15 | 8 | — | 4 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1078 | 0 | 24 | 115 | 0 | 24 | 151 | 0 | 0 | 151 | 0 | 0 | 151 | 13 | 0 | 166 | 0 | 0 | 151 | 0 |
Best forecast wave conditions in Oaxaca | |||||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||||
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Information about the Zepotonengo Surf forecast
The above surf forecast table for Zepotonengo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Zepotonengo can be found by selecting the local surf guide option on the grey menu. Our Zepotonengo 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 (Zepotonengo) 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 Zepotonengo 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.
Are you planning a holiday in Oaxaca? If you are looking for accommodation near Zepotonengo, camping, hotels and holiday cottages in Oaxaca, consider staying in Puerto Escondido which is 34 km (21 miles) away. Other places in and around Oaxaca where you can find information about places to rent, and car hire include Nopala which is 60 km (37 miles) away and Miahuatlan de Porfirio Diaz, 71 km (44 miles) away.
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