Surf Forecasts:
Hornitos surf forecast from 9 Aug 2026:
- Best quality surf: Monday 10 Aug, 2AM (local time) - 5ft (1.6m), 13s period, SW swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 2PM (local time) - 5ft (1.6m), 16s period, SW swell with 1,300 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 2AM (local time) - 4ft (1.2m), 9s period with SW swell.
Best Forecast Surf Conditions for Hornitos this week:
The surf forecast for Hornitos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 09) at 2AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.6m and 15s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hornitos in the next 16 days are 1.6m 16s and forecast to arrive on Monday (Aug 10) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 9th Aug) | 4ft (1.2m) 9s |
| Best Surf | 2AM (Mon 10th Aug) | 5ft (1.6m) 13s |
| Most Powerful | 2PM (Mon 10th Aug) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
Alright, Rusty here, checkin’ in on Hornitos for the next couple weeks.
First surf worth mentionin’ is Sunday the 9th of August, but it ain’t a ripper. Swell around 4ft from the SW with a long 14-second period, energy’s moderate at 683. Wind’s light and onshore in the morning so it’s a bit bumpy. Not the cleanest start.
Monday the 10th picks up a touch – 5ft to 5ft from the SW and S, still that long-period groundswell. Energy hits 1251 by the afternoon, but the wind is cross or cross-on so expect some texture on the face.
Tuesday the 11th of August is your best bet. 4ft of SW swell, 13-second period, and the wind goes dead calm – glassy. Energy’s 569, so moderate but clean. That’s the window for the whole run if you want a smooth ride.
After that, it drops off hard. Wednesday the 12th and beyond sees swell under 3ft, down to 2ft, energy fallin’ into the low hundreds, and wind stayin’ cross-on. Not worth it.
A little pulse around the 15th and 16th of August brings 4ft to 6ft from the WSW, energy back over 1000, but wind’s onshore or cross-on. Still marginal.
Tuesday the 18th of August afternoon gives a brief glassy window: 4ft from the SW, but period’s short at 12 seconds and energy low at 463. A teaser.
The rest of the run into late August is weak. Swell stays under 3ft, period drops under 10 seconds, energy falls below 200. Even the 24th of August brings 2ft from the SSW with a long 15-second period, but energy is only 273 and wind’s cross-on.
Best bet: Tuesday morning the 11th of August at Hornitos, glassy and clean. Otherwise, it’s a long stretch of quiet water.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon morning, min 15°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue night. Warm (max 26°C on Wed night, min 20°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 9 | SW 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SW 13 | SW 11 | SW 12 | SW 11 | WSW 19 | WSW 18 | WSW 17 | WSW 16 | WSW 15 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 230 | 476 | 564 | 933 | 757 | 1251 | 799 | 569 | 480 | 288 | 142 | 179 | 143 | 390 | 377 | 441 | 283 | 217 | 211 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | glassy | cross-on | cross | cross-on | glassy | cross | off | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy |
High Tide | 6:11AM1.11m | 6:43PM0.61m | 7:11AM1.21m | 7:45PM0.66m | 8:04AM1.29m | 8:37PM0.73m | 8:52AM1.34m | 9:24PM0.81m | 9:38AM1.34m | 10:09PM0.88m | 10:20AM1.30m | 10:52PM0.93m | |||||||
Low Tide | 11:02PM0.22m | 1:19PM0.18m | 00:13AM0.17m | 2:12PM0.10m | 1:16AM0.11m | 2:58PM0.02m | 2:11AM0.06m | 3:40PM-0.03m | 3:03AM0.03m | 4:19PM-0.05m | 3:52AM0.03m | 4:56PM-0.04m | 4:42AM0.06m | ||||||
 |  |  |  | | |  |  | |  | | | | | | | | | | |
 | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — |
 | 6:22 | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 19 | 18 | 22 | 21 | 20 | 21 | 22 | 25 | 25 | 25 | 26 | 25 | 24 | 22 | 22 | 23 | 20 |
Feels °C | 18 | 18 | 18 | 17 | 20 | 20 | 19 | 20 | 20 | 23 | 25 | 23 | 25 | 25 | 24 | 23 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SW 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SW 13 | SW 11 | SW 9 | SW 11 | SW 7 | WSW 18 | WSW 17 | WSW 16 | WSW 15 | SW 15 | SW 14 |
| kJ | 230 | 476 | 564 | 933 | 757 | 1251 | 799 | 569 | 480 | 288 | 107 | 179 | 30 | 390 | 377 | 441 | 283 | 217 | 211 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 9 | SW 9 | SW 18 | SW 16 | — | — | — | — | SSW 12 | SW 12 | SW 5 | SSW 11 | SW 10 | SW 10 | SW 9 | SW 9 | SW 4 | SW 8 |
| kJ | 178 | 168 | 123 | 197 | 254 | — | — | — | — | 29 | 142 | 15 | 76 | 80 | 77 | 54 | 40 | 6 | 23 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 10 | SW 20 | — | — | — | — | — | — | — | WSW 15 | WSW 21 | WSW 19 | — | W 12 | — | — | SSW 9 | WSW 18 |
| kJ | 48 | 39 | 134 | — | — | — | — | — | — | — | 23 | 42 | 143 | — | 3 | — | — | 15 | 31 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 61 | 305 | 0 | 127 | 305 | 4 | 0 | 51 | 0 | 305 | 305 | 0 | 127 | 127 | 0 | 127 | 305 | 0 |
Best forecast wave conditions in Antofagasta | |||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||
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Information about the Hornitos Surf forecast
The above surf forecast table for Hornitos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hornitos can be found by selecting the local surf guide option on the grey menu. Our Hornitos 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 (Hornitos) 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 Hornitos 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.
Hornitos is 22 km (14 miles) from the city of Mejillones. If you plan a holiday in Antofagasta, look for hotels and other accommodation in Mejillones. Mejillones has rooms for a wide range of budgets as well as car hire and transport links.
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