Surf Forecasts:
Hornitos surf forecast from 1 Sep 2026:
- Best quality surf: Tuesday 1 Sep, 5PM (local time) - 3.5ft (1.1m), 11s period, SW swell with glassy winds.
- Most powerful swell: Friday 4 Sep, 11AM (local time) - 4ft (1.2m), 14s period, WSW swell with 561 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 5PM (local time) - 3.5ft (1.1m), 11s 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 01) at 5PM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.4m 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 1.2m 14s and forecast to arrive on Friday (Sep 04) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Sep 08) at 3AM.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Tue 1st Sep) | 3.5ft (1.1m) 11s |
| Best Surf | 5PM (Tue 1st Sep) | 3.5ft (1.1m) 11s |
| Most Powerful | 11AM (Fri 4th Sep) | 4ft (1.2m) 14s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s get into it. We got a solid run of surf coming up at Hornitos, but it ain’t gonna be a screamer. The opening Tuesday is where it’s at, with a moderate 4ft of SW groundswell, period a punchy 11 seconds, and the water’s a toasty 65°F, much warmer than normal for this time of year. The morning’s a bit light and onshore, but by Tuesday afternoon the wind drops to a glassy 3 mph from the WNW – that’s clean, smooth conditions, and the swell holds at 4ft. This is the standout session of the whole outlook. The combined wave energy is solid moderate at 520 (Tuesday morning) and 474 (afternoon), so there’s enough push for a fun ride. Hornitos is a consistent, fairly exposed spot, and with the swell coming straight from the SW, it’s lining up nicely. Crowds are sometimes a thing, so you might have a few mates out, but nothing crazy.
Wednesday morning the swell drops to 3ft, wind picks up a little cross-onshore, but Wednesday afternoon cleans up again with glassy conditions and 3ft from the WSW – still a decent little wave for a midweek session. Thursday brings a weird one: morning has a tiny 2ft swell but a very long period of 18 seconds, which is groundswell energy (409 combined energy), but it’s onshore and marginal. That long period could make the take-off a bit tricky at a beach setup, but it might offer some shape. Thursday afternoon picks up a touch to 3ft, still cross-onshore. Honestly, after Tuesday, the rest of the first week is a bit of a grind – small, clean windows but nothing that’ll get your heart racing.
From Friday the 4th through to Sunday the 6th, we’re looking at waist-high stuff, 2ft to 3ft, with onshore or cross-onshore breezes and marginal conditions. The energy is still moderate (between 476 and 693), but the wind kills the quality. It’s not a total write-off, but you’ll be working for the scraps.
The second week is a real struggle. Monday the 7th through Wednesday the 16th, the swell barely scrapes above 3ft, and most days are marked as poor or marginal. The wind is mostly cross-onshore, and the combined energy drops into the 200s and low 300s – weak, weak stuff. The 14th of September has a tiny 1ft swell with a 16-second period, but it’s straight onshore and poor. Don’t bother. There’s a glimmer on the afternoon of the 15th (Tuesday) – 3ft from the SSW, 16 seconds, combined energy jumps to 463 – but it’s cross-onshore, so it’s still a gamble. For the most part, you’re looking at a solid 8-day gap from the 7th to the 14th where there’s barely anything worth paddling for.
So, to sum it up: Tuesday afternoon, the 1st of September, is your golden ticket. Get out there for the combination of clean glassy conditions, moderate SW groundswell, and warm water. Everything else is a wait-and-see or a go-home.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue morning, min 16°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Sun morning, min 18°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 11 | SW 11 | SW 11 | SW 11 | WSW 9 | SW 17 | SW 18 | SW 16 | WSW 16 | WSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 20 | SW 18 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
411 | 303 | 268 | 220 | 148 | 181 | 312 | 395 | 441 | 561 | 482 | 347 | 336 | 238 | 186 | 252 | 243 | 261 | 305 | 293 | 277 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | cross-on | glassy | glassy | on | cross-on | glassy | on | on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy |
High Tide | 11:42AM0.91m | 00:20AM1.00m | 12:24PM0.80m | 1:10AM1.00m | 1:16PM0.69m | 2:13AM0.99m | 2:30PM0.60m | 3:30AM1.00m | 4:10PM0.56m | 4:52AM1.05m | 5:42PM0.59m | 6:02AM1.12m | 6:49PM0.66m | ||||||||
Low Tide | 5:53PM0.13m | 6:39AM0.24m | 6:28PM0.17m | 7:45AM0.29m | 7:13PM0.22m | 9:12AM0.31m | 8:14PM0.26m | 10:51AM0.28m | 9:37PM0.28m | 12:11PM0.21m | 11:04PM0.25m | 1:07PM0.13m | 00:16AM0.19m | ||||||||
6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 7:46 | — | — | 7:45 | — | — | |
— | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 7:31 | — | — | 7:31 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 18 | 19 | 20 | 18 | 20 | 21 | 20 | 21 | 22 | 19 | 22 | 22 | 21 | 23 | 23 | 22 | 24 | 25 | 23 |
Feels °C | 22 | 22 | 19 | 19 | 20 | 19 | 19 | 20 | 21 | 20 | 22 | 21 | 22 | 21 | 22 | 22 | 22 | 22 | 23 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SW 11 | WSW 9 | SW 10 | SW 18 | SW 16 | WSW 16 | WSW 14 | SW 14 | SW 13 | SW 13 | SW 10 | SW 10 | SW 10 | SSW 9 | SW 16 | SW 15 | SW 14 | SW 14 |
411 | 303 | 268 | 220 | 148 | 94 | 312 | 395 | 441 | 561 | 482 | 347 | 336 | 200 | 137 | 108 | 113 | 261 | 305 | 293 | 277 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 15 | SW 19 | SW 18 | SW 19 | SW 17 | SW 9 | SW 9 | SW 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 13 | SW 13 | SW 12 | SW 17 | SW 9 | SSW 9 | SSW 8 | SW 8 |
109 | 77 | 175 | 116 | 129 | 181 | 41 | 40 | 61 | 132 | 177 | 151 | 192 | 238 | 170 | 116 | 243 | 84 | 52 | 48 | 34 | |
Swell 3 Height (m) Direction Period (s) | — | SW 19 | — | SW 14 | SW 14 | SW 20 | WSW 10 | WSW 9 | WSW 11 | — | — | — | SW 23 | SW 21 | SW 20 | SW 18 | SW 12 | SW 12 | W 10 | SW 19 | W 11 |
— | 94 | — | 65 | 64 | 97 | 56 | 34 | 49 | — | — | — | 21 | 72 | 186 | 252 | 114 | 69 | 2 | 58 | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 4 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 0 | 0 | 127 | 0 | 0 | 127 | 221 | 0 | 127 | 51 | 0 | 127 | 305 | 0 | 127 | 61 | 0 | 305 | 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.











