Surf Forecasts:
Hornitos surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 11PM (local time) - 3.5ft (1.0m), 11s period, WSW swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 5AM (local time) - 4ft (1.2m), 14s period, SW swell with 565 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 11PM (local time) - 3.5ft (1.0m), 11s period with WSW 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 Saturday (Aug 15) at 11PM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.7m and 13s. 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 Saturday (Aug 22) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Aug 18) at 8PM.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 15th Aug) | 3.5ft (1.0m) 11s |
| Best Surf | 11PM (Sat 15th Aug) | 3.5ft (1.0m) 11s |
| Most Powerful | 5AM (Sat 22nd Aug) | 4ft (1.2m) 14s |
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 in store for us over the next couple of weeks.
Straight up, this isn't a classic run. We’ve got a long stretch of days that are pretty average, with the real standout action looking to be a long way off. The water’s sitting at 64°, which is 4° warmer than usual for this time of year, so you’ll be leaving the thick wetsuit at home for sure.
The first week is largely a write-off for anything decent. Saturday the 15th starts with a small 3ft SW swell (267 combined energy), but the comments are already calling it marginal. Sunday the 16th isn't much better with a 3ft WSW swell from the north-west. From Monday the 17th right through to Tuesday the 26th, we’re looking at a real dry spell. The scores are flat, the conditions are described as poor, and the swell is tiny or has cross-onshore winds messing it up. You’d be better off doing something else.
Friday the 21st offers a tiny glimmer. We get a glassy morning and afternoon with a clean 3ft and 2ft SW swell. The wave energy is weak (303 to 351), but the wind is off and it looks super clean. For a dawn patrol on a longboard, it might be the only session worth paddling out for all week.
The big news comes much later. Mark your calendars for Friday the 29th of August. Hornitos gets a serious pulse of energy. We’re looking at a 8ft WSW swell with a period of 14 seconds, and the combined energy is a massive 2151. That’s very strong wave energy. The wind is a light cross-onshore, so it won't be glassy but with that size it’ll be powerful. This is expert territory for sure – 8ft is the top end for most, so 8ft is getting real. The period is long enough for proper groundswell, so expect hefty, lined-up sets. The break is fairly exposed to the SW, so it should handle that direction well. Saturday the 30th hangs on with a still-chunky 6ft SW swell at 12 seconds (871 energy), which is a solid drop in size but still very rideable for intermediates who are comfortable.
Honestly, in the whole 16-day window, the only real highlight is that big swell at the end of the month. The rest is mostly a bust with marginal or poor conditions.
Stay tuned, forecasts can change.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 20°C on Sat morning, min 15°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Tue night. Warm (max 24°C on Thu morning, min 14°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 13 | WSW 11 | WSW 10 | SW 16 | SW 14 | SW 13 | SW 14 | SW 14 | SW 13 | WSW 13 | SW 12 | SW 12 | SW 11 | SW 8 | SW 14 | SW 14 | SW 13 | WSW 13 | SW 16 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 261 | 382 | 329 | 212 | 287 | 241 | 215 | 251 | 231 | 386 | 458 | 347 | 268 | 254 | 169 | 297 | 245 | 180 | 112 | 133 | 309 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-on | on | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | cross | on | cross-on | cross-off | on | cross-on | glassy | glassy | glassy | cross |
High Tide | 11:02AM1.21m | 11:36PM0.97m | 11:42AM1.09m | 00:20AM0.98m | 12:23PM0.96m | 1:06AM0.97m | 1:07PM0.82m | 1:57AM0.95m | 1:57PM0.69m | 2:56AM0.91m | 3:04PM0.60m | 4:06AM0.90m | 4:35PM0.55m | ||||||||
Low Tide | 5:32PM-0.01m | 5:31AM0.12m | 6:07PM0.05m | 6:23AM0.19m | 6:42PM0.11m | 7:19AM0.27m | 7:18PM0.19m | 8:27AM0.33m | 7:59PM0.26m | 9:52AM0.37m | 8:51PM0.31m | 11:28AM0.35m | 10:03PM0.34m | ||||||||
 | |  |  | | | | |  | |  | | | | | | | | | | | |
 | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | 1 | 5 | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 17 | 20 | 19 | 16 | 19 | 19 | 17 | 18 | 18 | 15 | 19 | 19 | 20 | 24 | 23 | 23 | 23 | 23 | 20 |
Feels °C | 20 | 20 | 18 | 20 | 18 | 17 | 17 | 17 | 15 | 17 | 16 | 12 | 17 | 17 | 18 | 22 | 21 | 22 | 22 | 23 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | WSW 11 | WSW 10 | WSW 10 | SW 14 | SW 13 | SW 14 | SW 14 | SW 13 | WSW 13 | SW 12 | SW 12 | SW 11 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 12 |
| kJ | 261 | 382 | 329 | 212 | 122 | 241 | 215 | 251 | 231 | 386 | 458 | 347 | 268 | 254 | 169 | 145 | 126 | 88 | 112 | 117 | 309 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SW 14 | SW 16 | SW 16 | SW 9 | WSW 8 | WSW 8 | WSW 8 | W 11 | WSW 18 | SW 16 | SW 15 | SW 15 | SW 13 | SW 14 | SW 14 | SW 13 | WSW 13 | WSW 12 | SW 15 |
| kJ | 6 | 6 | 93 | 161 | 287 | 81 | 48 | 26 | 25 | 114 | 32 | 96 | 141 | 176 | 108 | 297 | 245 | 180 | 106 | 101 | 174 |
Swell 3 Height (m) Direction Period (s) | — | — | S 8 | WSW 13 | — | — | — | W 13 | W 13 | SW 20 | — | NNE 3 | W 6 | W 12 | SW 16 | — | — | W 21 | SW 18 | SW 16 | — |
| kJ | — | — | 1 | 17 | — | — | — | 3 | 13 | 15 | — | 1 | 10 | 3 | 155 | — | — | 9 | 85 | 133 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 4 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 26 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 61 | 0 | 127 | 78 | 0 | 127 | 90 | 0 | 127 | 84 | 61 | 71 | 305 | 0 | 78 | 127 | 0 | 0 | 0 | 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.
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