Surf Forecasts:
Hornitos surf forecast from 10 Aug 2026:
- Best quality surf: Monday 10 Aug, 11AM (local time) - 5ft (1.5m), 13s period, SW swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 2PM (local time) - 5ft (1.6m), 16s period, SW swell with 1,300 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 11AM (local time) - 5ft (1.5m), 13s 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 Monday (Aug 10) at 11AM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 0.7m and 16s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hornitos in the next 16 days are 1.6m 16s and forecast to arrive on Monday (Aug 10) at 2PM. 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+) | 11AM (Mon 10th Aug) | 5ft (1.5m) 13s |
| Best Surf | 11AM (Mon 10th Aug) | 5ft (1.5m) 13s |
| Most Powerful | 2PM (Mon 10th Aug) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
Right, listen up, this is Rusty. Let's get stuck into it.
The outlook is a slow burn, my friends. The water is sitting at 65.5°F and is much warmer than normal for this time of year – a real treat. The first few days are a bit of a write-off at Hornitos, with a weak, cross-onshore mess. The real interest lies further down the line.
We've got a bit of a wait on our hands. The first sniff of anything decent doesn't come until Tuesday, August 11th. The morning session is where it's at. The swell is 4.3ft from the SW, and the wind goes glassy. That’s exactly what we want to hear. The wave energy is moderate (569). It’s not huge, but clean and rideable for an intermediate. The afternoon holds a 3.9ft SW swell with a light cross-off breeze, keeping it tidy. This is the pick of the early part of the outlook.
After that, the surf drops right off. Wednesday through to the weekend of the 16th/17th is a write-off – small, onshore, and messy. We’re talking about a real lull. Then, on Monday, August 17th, we see a spike in size. The swell bumps up to 4.9ft in the morning and 5.2ft in the afternoon from the SW, with moderate energy (604). However, the wind is onshore from the WNW, so the quality will be poor. This is a test for the experts only, as the size is pushing it. The same goes for Tuesday, August 18th, with 4.3ft to 3.6ft swell but still onshore.
The only other real standout is way out on Friday, August 21st. The afternoon session is promising. The swell is 3.6ft from the SW, and the wind goes glassy once again. The wave energy is solid (574). This is a long-range call, so keep your fingers crossed, but it looks like it could be a ripper. The Saturday and Sunday after that are back to small, onshore conditions.
So, to sum it up, circle Tuesday, August 11th, morning for the first clean waves, and keep an eye on Friday, August 21st, afternoon for a potential repeat performance. The rest is a whole lot of nothing.
Short Range ForecastMostly dry. Warm (max 24°C on Tue afternoon, min 17°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Fri morning, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 13 | SW 15 | SW 14 | SW 13 | SW 13 | SW 11 | SW 12 | SW 11 | SW 11 | WSW 18 | SW 17 | WSW 16 | SW 15 | SW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 16 | SW 12 | SW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 757 | 1251 | 890 | 569 | 543 | 325 | 140 | 205 | 143 | 390 | 302 | 441 | 322 | 305 | 264 | 183 | 178 | 245 | 140 | 325 | 263 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross | on | cross-off | cross | on | on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | on | on | cross | on | on | glassy |
High Tide | 7:45PM0.66m | 8:04AM1.29m | 8:37PM0.73m | 8:52AM1.34m | 9:24PM0.81m | 9:38AM1.34m | 10:09PM0.88m | 10:20AM1.30m | 10:52PM0.93m | 11:02AM1.21m | 11:36PM0.97m | 11:42AM1.09m | 00:20AM0.98m | ||||||||
Low Tide | 2:12PM0.10m | 1:16AM0.11m | 2:58PM0.02m | 2:11AM0.06m | 3:40PM-0.03m | 3:03AM0.03m | 4:19PM-0.05m | 3:52AM0.03m | 4:56PM-0.04m | 4:42AM0.06m | 5:32PM-0.01m | 5:31AM0.12m | 6:07PM0.05m | ||||||||
 |  |  | | |  |  | | | | | | | |  | | | | | | | |
 | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 22 | 22 | 24 | 24 | 21 | 22 | 21 | 20 | 20 | 18 | 21 | 21 | 19 | 19 | 20 | 17 | 18 | 19 | 16 |
Feels °C | 21 | 20 | 20 | 20 | 23 | 23 | 21 | 22 | 22 | 19 | 20 | 19 | 21 | 20 | 19 | 18 | 19 | 18 | 17 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 15 | SW 14 | SW 13 | SW 13 | SW 11 | SW 12 | SW 11 | SW 11 | WSW 18 | SW 17 | WSW 16 | SW 15 | SW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 11 | SW 12 | SW 11 |
| kJ | 757 | 1251 | 890 | 569 | 543 | 325 | 140 | 205 | 137 | 390 | 302 | 441 | 322 | 305 | 264 | 183 | 178 | 245 | 117 | 325 | 263 |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | — | — | — | SSW 12 | SW 8 | WSW 21 | WSW 19 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 8 | SSW 8 | SSW 8 | SW 17 | SW 13 | SW 16 | SW 14 |
| kJ | 254 | — | — | — | — | 29 | 57 | 42 | 143 | 77 | 45 | 40 | 20 | 27 | 17 | 6 | 6 | 77 | 140 | 193 | 160 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 15 | WSW 15 | WSW 14 | — | SW 4 | — | — | — | — | — | — | WSW 7 | SW 16 | S 8 | — |
| kJ | — | — | — | — | — | — | 23 | 21 | 18 | — | 3 | — | — | — | — | — | — | 10 | 130 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 4 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 305 | 172 | 127 | 0 | 127 | 78 | 61 | 0 | 127 | 305 | 0 | 127 | 305 | 0 | 127 | 78 | 51 | 127 | 221 | 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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