
Surf Forecasts:
Hornitos surf forecast from 31 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 2AM (local time) - 5ft (1.5m), 12s period, SW swell with glassy winds.
- Most powerful swell: Thursday 6 Aug, 11AM (local time) - 4.5ft (1.4m), 16s period, SW swell with 1,001 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 11AM (local time) - 2.5ft (0.7m), 12s 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 Friday (Jul 31) at 11AM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.2m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hornitos in the next 16 days are 1.4m 16s and forecast to arrive on Thursday (Aug 06) at 11AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Fri 31st Jul) | 2.5ft (0.7m) 12s |
| Best Surf | 2AM (Wed 5th Aug) | 5ft (1.5m) 12s |
| Most Powerful | 11AM (Thu 6th Aug) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Hornitos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
Right off the bat, we’re looking at a pretty drawn-out run of average to poor surf at Hornitos. The first few days are a write-off for anything decent, with a messy combo of light cross-onshore winds and small, weak swell. The water temperature is sitting at 66° which is much warmer than normal for this time of year, so that’s a nice little bonus if you’re just getting wet.
The first real highlight doesn’t show up until Tuesday afternoon, the 4th of August. That’s when we finally see a bit of a pulse. Swell is coming from the SW at 5ft, with a period of 11 seconds. The wind goes glassy, and the combined energy jumps to 596 (moderate wave energy). That’s the best call in this whole run – clean, surfable, and moderate size. It’s not a big day, but it’s the one to aim for if you want something that isn’t a battle against the wind.
After that, we get a run of marginal days right through to the 7th. The swell holds around 4ft to 5ft, but the wind is mostly cross-on or onshore, which stuffs up the quality. Still, you could get a few if you’re keen.
Things get interesting again on Thursday morning, the 6th of August. The swell is 5ft from the SW, but the period stretches to 16 seconds – that’s proper groundswell. The combined energy hits 1006 (strong wave energy), so there’s plenty of push. The wind is light and onshore, but that long period will make the waves really wall up. This is a spot where long period SW groundswell can shine, but watch out for it to be a bit too straight at a beach break. For a reef or point, it’d be a standout.
The second week looks pretty grim. From the 8th through to the 15th, it’s mostly small, messy, and cross-on. The swell drops to 2ft to 3ft for a few days, and the wind gets stronger, especially on the 10th and 11th with moderate breezes making it choppy. There’s a little bump on the 12th and 13th with 5ft to 5ft swell, but the period drops to 9-10 seconds and the wind is onshore or cross-on. It’s not worth getting excited about.
The final day, Saturday the 15th, shows a 3ft SW swell with a 15-second period and light onshore wind. The energy is moderate (545), but the size is tiny. Pretty much a skip day.
Honestly, the only standouts are Tuesday afternoon the 4th for a clean, glassy session, and Thursday morning the 6th if you want to chase the long period groundswell. The rest is a long, flat, windy stretch. It’s a rough run, but it’s not unusual for this spot – forecasts can change, so keep an eye on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 15°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon morning, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 12 | SW 11 | SW 11 | WSW 10 | SW 10 | WSW 10 | WSW 9 | SW 8 | SSW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 12 | SW 12 | SW 12 | SW 16 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||||
144 | 179 | 268 | 340 | 200 | 251 | 176 | 158 | 96 | 181 | 325 | 561 | 506 | 573 | 635 | 531 | 522 | 349 | 1001 | 685 | 667 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | cross | cross-on | glassy | glassy | on | cross-on | glassy | on | on | glassy |
High Tide | 10:35AM1.17m | 11:05PM0.76m | 11:06AM1.14m | 11:40PM0.79m | 11:38AM1.08m | 00:18AM0.82m | 12:11PM0.99m | 00:58AM0.86m | 12:47PM0.90m | 1:45AM0.89m | 1:32PM0.79m | 2:42AM0.92m | 2:31PM0.69m | 3:49AM0.96m | |||||||
Low Tide | 5:18PM0.09m | 4:36AM0.18m | 5:46PM0.10m | 5:15AM0.21m | 6:14PM0.11m | 5:58AM0.26m | 6:43PM0.13m | 6:48AM0.30m | 7:15PM0.16m | 7:49AM0.35m | 7:53PM0.19m | 9:08AM0.37m | 8:43PM0.22m | ||||||||
7:15 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | |
— | 6:19 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 20 | 24 | 24 | 20 | 21 | 22 | 21 | 22 | 22 | 20 | 20 | 20 | 18 | 21 | 22 | 21 | 21 | 21 | 20 |
Feels °C | 19 | 19 | 18 | 22 | 22 | 20 | 20 | 21 | 20 | 22 | 21 | 21 | 19 | 20 | 19 | 21 | 22 | 22 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | SW 11 | WSW 10 | SW 10 | WSW 10 | WSW 9 | SW 8 | SW 7 | SW 7 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 12 | SW 12 | SW 12 | SW 16 | SW 15 | SW 14 |
144 | 179 | 268 | 340 | 200 | 251 | 176 | 158 | 62 | 77 | 325 | 561 | 506 | 573 | 635 | 531 | 522 | 349 | 1001 | 685 | 667 | |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SSW 8 | WSW 16 | SW 16 | W 10 | WSW 15 | SW 12 | SW 11 | WSW 9 | SW 12 | SW 7 | NW 12 | NW 12 | NW 12 | WSW 20 | SW 19 | SW 18 | SW 17 | NW 12 | NW 11 | NW 11 |
6 | 6 | 26 | 65 | 71 | 84 | 72 | 97 | 53 | 181 | 75 | 6 | 5 | 6 | 41 | 96 | 85 | 243 | 5 | 5 | 5 | |
Swell 3 Height (m) Direction Period (s) | NW 13 | WSW 18 | W 13 | — | SW 15 | W 12 | WSW 14 | WSW 13 | SSW 12 | WSW 9 | SSW 11 | — | — | SW 21 | NW 12 | NW 12 | NW 12 | NW 12 | — | — | — |
7 | 30 | 14 | — | 60 | 3 | 74 | 99 | 96 | 32 | 12 | — | — | 17 | 5 | 5 | 5 | 5 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | SW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 78 | 71 | 305 | 78 | 0 | 305 | 290 | 0 | 127 | 78 | 51 | 127 | 0 | 0 | 78 | 87 | 0 | 61 | 78 | 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.











