
Surf Forecasts:
Hornitos surf forecast from 13 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 12AM (local time) - 2.5ft (0.8m), 16s period, SW swell with glassy winds.
- Most powerful swell: Monday 14 Sep, 6PM (local time) - 2.5ft (0.8m), 16s period, SW swell with 310 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 12AM (local time) - 2.5ft (0.8m), 16s 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 12AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.8m 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 0.8m 16s and forecast to arrive on Monday (Sep 14) at 6PM. 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+) | 12AM (Tue 15th Sep) | 2.5ft (0.8m) 16s |
| Best Surf | 12AM (Tue 15th Sep) | 2.5ft (0.8m) 16s |
| Most Powerful | 6PM (Mon 14th Sep) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what Hornitos has got cooking for us over the next couple of weeks. It’s a bit of a slow start, but we’ve got a couple of windows where it could be worth wetting a line.
The first few days are a write-off, I'm sorry to say. Sunday the 13th and Monday the 14th are both a no-go with poor surf conditions and a weak, crummy swell. The combined energy is weak, reading 252 and 467 respectively, but the wave quality is just not there. Tuesday the 15th is where we start to see a glimmer. The morning glass-off is the standout for the first week. We’ve got a clean 3ft SW swell at 14 seconds, a nice long period groundswell. The wind is dead calm, glassy as a lake. It’ll be clean, but the energy is only moderate at 358. For a point break or reef, that long period will wrap in nicely, but at a beach break, it might be a bit straight. It’s an intermediate wave.
The water temperature is a whopping 65°F, which is about 5° warmer than average for this time of year – that’s very unusual and makes for a lovely tropical-feeling session.
Wednesday the 16th morning is glassy again with a 3ft SW swell, but it's just "ordinary" – not bad, not great. Then we hit a long, dry spell. From Thursday the 17th right through to Friday the 25th, it’s just not happening. There’s a consistent pattern of onshore wind in the afternoons and weak, poor-quality swell in the mornings. We're talking a solid 8-day gap with nothing worth paddling out for.
Now, looking further out, Saturday the 26th of September morning is the real one to circle on the calendar. We get a return of a clean, glassy morning with a 3ft WSW swell at a very long 13 seconds. The combined energy jumps right up to 403, which is strong. This is a proper groundswell, and with zero wind, it’s going to be clean as a whistle. The direction is a good match for the break. This is the best on offer by a long shot. After that, Sunday the 27th and Monday the 28th are still clean in the mornings with glassy conditions and a 3ft and 2ft swell respectively, but the energy drops off to moderate.
So, to sum it up: this week is a bust. The only real highlight is Tuesday the 15th morning for a small, clean, long-period swell. But the absolute standout, the one to really aim for, is Saturday the 26th morning. That one has the size, the period, the energy, and the glassy wind. Get it in your diary.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue afternoon, min 16°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Fri night, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 9 | SW 9 | SW 9 | SW 18 | SW 16 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 |
Wave Graph | |||||||||||||||||||||
217 | 170 | 170 | 246 | 211 | 287 | 293 | 241 | 205 | 205 | 172 | 130 | 71 | 71 | 116 | 130 | 142 | 130 | 121 | 96 | 140 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross | cross | on | glassy | glassy | on | glassy | glassy | on | glassy | glassy | on | cross | cross-on | on | glassy | glassy | on | glassy |
High Tide | 11:32AM1.05m | 00:00AM1.08m | 12:11PM0.94m | 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 | ||||||||
Low Tide | 5:45PM0.04m | 6:14AM0.11m | 6:15PM0.10m | 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 | ||||||||
7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | |
— | 7:34 | — | — | 7:34 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:36 | — | — | 7:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 22 | 22 | 21 | 22 | 23 | 20 | 22 | 22 | 19 | 22 | 22 | 21 | 25 | 24 | 26 | 27 | 27 | 23 |
Feels °C | 19 | 19 | 19 | 20 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | 19 | 21 | 21 | 21 | 23 | 23 | 25 | 26 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SW 9 | SW 9 | SW 10 | SW 9 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 |
217 | 170 | 170 | 150 | 101 | 287 | 293 | 241 | 205 | 205 | 172 | 130 | 71 | 71 | 116 | 130 | 142 | 130 | 121 | 96 | 140 | |
Swell 2 Height (m) Direction Period (s) | WSW 18 | SW 20 | SW 19 | SW 18 | SW 16 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 4 | SSW 7 | SW 20 | SW 4 | SW 4 | SW 5 | SW 17 |
30 | 98 | 129 | 246 | 211 | 97 | 59 | 55 | 32 | 31 | 31 | 16 | 14 | 14 | 6 | 5 | 16 | 4 | 5 | 6 | 11 | |
Swell 3 Height (m) Direction Period (s) | NW 12 | NW 12 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | NW 12 | WSW 12 | NW 12 | NW 11 | NW 11 | NW 11 | SW 10 | WSW 15 | SSW 7 | — | W 14 | WSW 19 | WSW 18 | SW 18 | NW 13 |
5 | 5 | 25 | 71 | 105 | 57 | 6 | 27 | 6 | 5 | 5 | 5 | 24 | 21 | 5 | — | 4 | 37 | 31 | 12 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 305 | 305 | 84 | 4 | 305 | 0 | 0 | 127 | 0 | 0 | 127 | 0 | 0 | 305 | 61 | 61 | 305 | 0 | 0 | 127 | 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.










