Surf Forecasts:
Hornitos surf forecast from 2 Sep 2026:
- Best quality surf: Tuesday 1 Sep, 11PM (local time) - 3.5ft (1.1m), 11s period, SW swell with glassy winds.
- Most powerful swell: Saturday 5 Sep, 2AM (local time) - 4.5ft (1.3m), 13s period, SW swell with 628 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 11PM (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 11PM. 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 1.3m 13s and forecast to arrive on Saturday (Sep 05) at 2AM. 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+) | 11PM (Tue 1st Sep) | 3.5ft (1.1m) 11s |
| Best Surf | 11PM (Tue 1st Sep) | 3.5ft (1.1m) 11s |
| Most Powerful | 2AM (Sat 5th Sep) | 4.5ft (1.3m) 13s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s coming up at Hornitos. It’s going to be a bit of a mixed bag, so I’ll break it down day by day.
Right off the bat, we’ve got a little bit of swell rolling in, but the quality is going to be a struggle. The water is sitting at 65° with a 5° anomaly, so it’s much warmer than normal for this time of year, which is a nice touch if you’re paddling out.
The first real chance to get wet kicks off Tuesday, September 1st. Clean conditions with a light offshore breeze from the west, but the surf is small, around 4 ft from the southwest. The swell period is 11 seconds, so it’s a mix of ground and wind swell, with moderate energy (474). It’s not big, but it’s rideable if you’re on a log. The report flags it as marginal, so don’t expect firing waves.
Wednesday morning, September 2nd, looks similar: 3 ft from the southwest, clean offshore wind, and moderate energy (401). The afternoon drops right off to 2 ft with a super long 19-second period, which is a proper groundswell. That long period means the waves will have shape but will be very slow, with long lulls. It’s a tricky one.
Thursday, September 3rd, the morning offers 2 ft with a long 18-second period and clean offshore wind. The energy is moderate (410). Thursday afternoon picks up a touch to 3 ft, but the wind swings cross-onshore, so it’ll get a little bumpy. Still marginal.
Friday, September 4th, is the best of the early run. Morning sees 4 ft from the west-southwest with a 15-second period and clean offshore wind. The energy jumps to 700, which is moderate but pushing towards strong. This is the standout in the first week. The water is warm, the wind is good, and the swell is from the sweet spot. It’s not huge, but it’ll be clean and fun for an intermediate. The afternoon drops a bit to 4 ft, but the wind stays offshore, so don’t rush in.
From Saturday, September 5th, through to Monday, September 7th, the swell slowly fades from 3 ft down to 3 ft, with clean offshore winds most of the time. The energy drops from 499 to 348. The waves are small and weak, but the wind is good, so it’s a longboard-only kind of stretch.
Then we hit a dry spell. From Tuesday, September 8th, the winds start to get wonky, going cross-onshore, and the swell stays small. By Wednesday, September 9th, it’s officially poor – the energy drops to 254 and the wind is picking up to 9 mph. The surf is small, 2 ft, and the conditions are just messy. This poor run lasts all the way through to Monday, September 14th. The swell bumps up a little to 4 ft on the 13th, but the wind is cross-onshore and the energy is moderate (487). It’s not surfable quality.
The last chance comes on Tuesday, September 15th, with a small 3 ft south-west swell and a short 9-second period. The wind is light offshore in the morning, so it’s clean, but the energy is weak (275). It’s marginal. By Wednesday, the 16th, it’s tiny 1 ft and not worth it.
So, the pick of the fortnight is definitely Friday, September 4th. Hornitos is a consistent spot, but it’s not pumping this run. It’s a quiet period, but forecasts can change, so keep an eye on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 16°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun morning, min 17°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 19 | SW 17 | SW 18 | SW 16 | WSW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
303 | 268 | 220 | 179 | 181 | 312 | 395 | 441 | 568 | 482 | 628 | 336 | 238 | 196 | 199 | 190 | 206 | 305 | 293 | 277 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | glassy | on | cross-on | glassy | on | on | glassy | on | on | glassy | on | cross-on | glassy | on | on | cross |
High Tide | 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 | — | — | 6:48 | — | — | 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 | 22 | 19 | 19 | 20 | 18 | 20 | 21 | 19 | 21 | 22 | 19 | 22 | 22 | 21 | 24 | 24 | 22 | 24 | 23 | 21 |
Feels °C | 21 | 20 | 19 | 20 | 19 | 20 | 21 | 20 | 21 | 22 | 20 | 22 | 21 | 21 | 23 | 23 | 23 | 24 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | WSW 9 | WSW 10 | SW 18 | SW 16 | WSW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | SW 10 | SW 10 | SW 10 | SSW 9 | SW 16 | SW 15 | SW 14 | SW 14 |
303 | 268 | 220 | 148 | 81 | 312 | 395 | 441 | 568 | 482 | 628 | 336 | 148 | 142 | 137 | 113 | 206 | 305 | 293 | 277 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 19 | SW 18 | SW 19 | SW 17 | WSW 9 | SW 9 | SW 9 | SW 9 | SW 9 | — | SW 10 | SW 13 | SW 13 | SW 12 | SW 17 | SW 9 | SSW 9 | SSW 9 | SW 8 |
77 | 175 | 116 | 179 | 181 | 50 | 40 | 62 | 132 | 173 | — | 142 | 238 | 196 | 118 | 190 | 84 | 55 | 53 | 34 | |
Swell 3 Height (m) Direction Period (s) | SW 19 | — | SW 14 | SW 14 | SSW 10 | SW 10 | WSW 9 | WSW 11 | — | — | — | SW 23 | SW 21 | SW 20 | SW 18 | SW 12 | SW 12 | W 10 | W 11 | WSW 20 |
94 | — | 65 | 64 | 38 | 48 | 34 | 49 | — | — | — | 21 | 72 | 134 | 199 | 118 | 87 | 2 | 2 | 39 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 3 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 61 | 0 | 78 | 127 | 0 | 127 | 302 | 0 | 127 | 61 | 0 | 127 | 305 | 0 | 127 | 61 | 0 | 127 | 61 | 61 |
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.











