Surf Forecasts:
Hornitos surf forecast from 24 Aug 2026:
- Best quality surf: Friday 28 Aug, 2AM (local time) - 6ft (1.8m), 16s period, SW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 8AM (local time) - 7ft (2.1m), 15s period, SW swell with 1,987 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 2AM (local time) - 1.5ft (0.4m), 15s 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 Wednesday (Aug 26) at 2AM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.4m and 4s. Another secondary swell of 0.4m and 15s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hornitos in the next 16 days are 2.1m 15s and forecast to arrive on Friday (Aug 28) at 8AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 26th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 2AM (Fri 28th Aug) | 6ft (1.8m) 16s |
| Most Powerful | 8AM (Fri 28th Aug) | 7ft (2.1m) 15s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
G’day, Rusty here. Well, it’s a bit of a slow start for Hornitos. The next few days are looking pretty flat with poor surf conditions, so you might as well leave the boards in the car until later in the week. The water temp is sitting about average for the time of year, so nothing wild there.
From Thursday the 27th afternoon, things start to get a whisper of life with a marginal pulse creeping in—swell around 2 ft from the SW with a very long period of 19 seconds (357 energy). That’s a long-period groundswell, which can make for some clean lines at the right spot, but it’s still small and questionable.
The real standout kicks off Friday the 28th morning. Hornitos sees a solid jump to 7 ft SW swell with a period of 15 seconds and a chunky 1810 energy reading. That’s moderate to strong wave energy, and with light cross-onshore winds, it’ll be a bit bumpy but still rideable. This is the best of the run—big enough for intermediate crew, but at 7 ft, it’s pushing into expert territory for some. The swell direction (SW) matches the optimum direction for Hornitos, so it’s lining up nicely.
After Friday, the swell drops back through the weekend into the 5 ft to 6 ft range, but the winds stay cross-on, keeping things a bit messy. By Monday the 31st into the first week of September, the swell fades further to around 4 ft to 4 ft, and conditions stay marginal at best—mostly onshore winds and weak energy. There’s a second pulse brewing around Thursday the 3rd of September, with 5 ft to 6 ft SW swell and longer periods (16–17 seconds), pushing energy up to 1286–1611. That’s promising but still a week out, so keep an eye on it.
Overall, Friday the 28th is your best bet—biggest swell, decent period, and the most energy. The rest of the window is mostly small to marginal, with a few flickers of hope in early September. Hornitos can be consistent, but this run is a bit of a slow burner. Grab it on Friday if you can.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Tue night, min 18°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu afternoon, min 17°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 9 | SW 8 | SW 8 | SSW 13 | SSW 13 | SW 15 | SW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SW 16 | SW 15 | SW 14 | WSW 14 | WSW 13 | WSW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 47 | 20 | 18 | 16 | 68 | 63 | 56 | 99 | 158 | 101 | 129 | 183 | 1651 | 1810 | 1512 | 1110 | 961 | 918 | 816 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | glassy | on | on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy |
High Tide | 7:10AM1.01m | 7:45PM0.62m | 7:50AM1.07m | 8:20PM0.68m | 8:26AM1.12m | 8:53PM0.73m | 8:58AM1.15m | 9:24PM0.79m | 9:29AM1.16m | 9:56PM0.85m | 10:01AM1.13m | 10:28PM0.91m | |||||||
Low Tide | 00:20AM0.30m | 2:11PM0.20m | 1:07AM0.25m | 2:42PM0.15m | 1:48AM0.20m | 3:10PM0.12m | 2:25AM0.16m | 3:37PM0.09m | 3:02AM0.14m | 4:03PM0.07m | 3:40AM0.13m | 4:28PM0.06m | 4:18AM0.14m | ||||||
 |  | |  | | | | | | | | | | | | | | | | |
 | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 6:28 | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 24 | 22 | 21 | 22 | 24 | 25 | 24 | 25 | 21 | 21 | 22 | 19 | 21 | 22 | 19 | 20 | 21 | 18 |
Feels °C | 18 | 22 | 21 | 21 | 21 | 23 | 24 | 24 | 25 | 22 | 21 | 22 | 20 | 20 | 21 | 19 | 19 | 20 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 9 | SW 4 | SW 8 | SSW 13 | SW 4 | SW 4 | SW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SW 16 | SW 15 | SW 14 | WSW 14 | WSW 13 | WSW 13 | SW 13 |
| kJ | 25 | 20 | 4 | 16 | 68 | 6 | 7 | 99 | 158 | 101 | 129 | 171 | 1651 | 1810 | 1512 | 1110 | 961 | 918 | 816 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | WSW 9 | SW 8 | WSW 9 | WSW 9 | SSW 13 | SW 15 | SW 5 | SW 11 | SW 5 | SW 9 | SW 19 | NW 14 | — | — | NW 13 | NW 13 | — | NW 12 |
| kJ | 15 | 17 | 18 | 8 | 8 | 63 | 55 | 9 | 55 | 9 | 13 | 183 | 8 | — | — | 7 | 7 | — | 6 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SSW 12 | SSW 11 | SW 4 | SW 12 | SW 12 | SSW 12 | SW 9 | SW 9 | SW 9 | SW 5 | W 13 | — | — | — | — | — | — | — |
| kJ | 9 | 13 | 12 | 2 | 5 | 21 | 56 | 23 | 21 | 12 | 4 | 3 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 9 | SW 3 | — | — | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 47 | 2 | — | — | 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 71 | 554 | 657 | 51 | 305 | 305 | 0 | 71 | 78 | 0 | 51 | 78 | 0 | 305 | 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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