
Surf Forecasts:
Hornitos surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 3AM (local time) - 2.5ft (0.8m), 15s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 15 Sep, 6AM (local time) - 3ft (0.9m), 14s period, SW swell with 301 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 3AM (local time) - 2.5ft (0.8m), 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 Tuesday (Sep 15) at 3AM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.7m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hornitos in the next 16 days are 0.9m 14s and forecast to arrive on Tuesday (Sep 15) at 6AM. 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+) | 3AM (Tue 15th Sep) | 2.5ft (0.8m) 15s |
| Best Surf | 3AM (Tue 15th Sep) | 2.5ft (0.8m) 15s |
| Most Powerful | 6AM (Tue 15th Sep) | 3ft (0.9m) 14s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s have a look at what’s cookin’ over the next couple of weeks at Hornitos.
Right now, there’s not a whole lot to get excited about. We’ve got a long gap of really small, ordinary surf from Tuesday the 15th right through to the end of the week. The waves are tiny—2 ft to 3 ft—and the combined energy is weak, just 358 (Tuesday morning) dropping to 99 by Thursday afternoon. The mornings are glassy and clean, with light offshore or calm winds, which is a positive, but the swell is just too small to make it worthwhile. The water temp is about average for this time of year, nothing unusual. For a consistent spot like Hornitos, this run of poor surf is a bit of a bummer, but it won’t stay flat forever.
Things start to look a little more promising from Saturday the 26th onward. The morning of Saturday the 26th has a clean 4 ft SW groundswell (period 12 seconds). The combined energy is moderate at 431, and with glassy conditions, it’ll be clean and fun for intermediates. That’s a solid standout for the near end of the forecast.
Then we roll into Sunday the 27th morning—5 ft SW swell, glassy calm, and energy climbing to 536. That’s a noticeable step up, but at 5 ft it’s still manageable for most. The period is average (10 seconds), so it won’t be the cleanest groundswell, but it’s surfable. Morning glass is gold.
The real standout of the whole window is Monday the 28th morning. We’ve got 6 ft SW swell (period 10 seconds) and a combined energy reading of 664—moderate to strong energy. Winds are glassy offshore from the NNW, which means smooth, peeling walls. This is expert territory at 6 ft, but if you’ve got the skills, you’ll be rewarded. The swell direction (SW) is bang on what Hornitos likes. Crowds can show up here sometimes, so be ready for company.
Tuesday the 29th morning keeps the good run going: 5 ft SW swell, glassy, clean, with energy still solid at 475. Another excellent morning session before the wind shifts onshore in the arvo.
Wednesday the 30th morning holds at 5 ft SW swell, glassy again, energy at 401—still a solid option for a paddle out.
So, to sum it up: the first week is a write-off with tiny, ordinary waves. The second week comes alive. Best bets are the mornings of Monday 28th (the standout, 6 ft SW, glassy) and Tuesday 29th (5 ft SW, glassy). If you can only pick one, Monday 28th is the one to aim for, but it’s a week and a half away, so keep an eye on the forecasts. Saturday 26th morning is also a good warm-up. Afternoons are all onshore junk. Get up early and get amongst it.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Wed afternoon, min 17°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Fri night, min 21°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 13 | WSW 13 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 10 | SW 10 | SW 11 |
Wave Graph | |||||||||||||||||||
287 | 293 | 241 | 205 | 205 | 202 | 130 | 71 | 71 | 116 | 106 | 140 | 130 | 123 | 96 | 75 | 67 | 48 | 96 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | glassy | glassy | on | glassy | glassy | on | glassy | glassy | on | cross-off | glassy | on | glassy | glassy | on | cross |
High Tide | 00:39AM1.07m | 12:50PM0.82m | 1:20AM1.03m | 1:34PM0.71m | 2:07AM0.97m | 2:26PM0.61m | 3:06AM0.92m | 3:42PM0.54m | 4:20AM0.88m | 5:26PM0.52m | 5:39AM0.89m | 6:50PM0.55m | |||||||
Low Tide | 7:02AM0.17m | 6:47PM0.17m | 7:55AM0.24m | 7:20PM0.24m | 8:59AM0.30m | 7:59PM0.30m | 10:24AM0.34m | 8:55PM0.36m | 12:01PM0.33m | 10:21PM0.39m | 1:11PM0.29m | 11:50PM0.38m | |||||||
— | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | |
7:34 | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:36 | — | — | 7:36 | — | — | 7:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 22 | 20 | 22 | 23 | 21 | 22 | 22 | 25 | 24 | 25 | 28 | 28 | 27 | 25 | 26 | 26 | 25 |
Feels °C | 21 | 20 | 21 | 21 | 21 | 22 | 21 | 22 | 22 | 23 | 24 | 25 | 26 | 27 | 25 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 13 | WSW 13 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 10 | SW 6 | SW 11 |
287 | 293 | 241 | 205 | 205 | 202 | 130 | 71 | 71 | 116 | 106 | 140 | 130 | 123 | 96 | 75 | 67 | 23 | 96 | |
Swell 2 Height (m) Direction Period (s) | WSW 13 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 | SW 7 | SW 6 | SW 7 | SW 7 | SSW 7 | SW 4 | SW 4 | WSW 17 | SW 16 | SW 10 | SW 18 |
57 | 59 | 43 | 32 | 30 | 29 | 14 | 13 | 7 | 7 | 7 | 7 | 5 | 4 | 6 | 28 | 10 | 48 | 12 | |
Swell 3 Height (m) Direction Period (s) | NW 12 | NW 12 | WSW 12 | NW 12 | NW 11 | NW 11 | NW 11 | SW 10 | WSW 15 | W 13 | W 14 | SW 20 | WSW 20 | SSW 7 | SW 18 | NW 13 | SW 13 | SW 12 | W 12 |
6 | 6 | 27 | 6 | 5 | 5 | 5 | 24 | 21 | 3 | 4 | 16 | 37 | 5 | 12 | 7 | 7 | 24 | 3 | |
Wind waves Height (m) Direction Period (s) | SW 9 | — | — | — | — | — | — | — | — | — | — | — | SW 4 | — | — | SW 5 | SW 5 | — | SW 6 |
97 | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | 11 | 23 | — | 35 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 127 | 0 | 0 | 305 | 0 | 0 | 78 | 0 | 0 | 305 | 0 | 0 | 127 | 0 | 0 | 127 | 127 |
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.










