Hornitos Surf Break

Lat Long: 22.96° S 70.31° W

Hornitos Surf Forecast and Surf Report

Issued: 7 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Hornitos sea temperature is
18.3° C
2.6° 

Hornitos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Hornitos surf forecast from 12 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 11PM (local time) - 3ft (0.9m), 11s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 18 Aug, 11AM (local time) - 4ft (1.2m), 13s period, SW swell with 517 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 11PM (local time) - 3ft (0.9m), 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 Wednesday (Aug 12) at 11PM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.4m and 19s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Hornitos in the next 16 days are 1.2m 13s and forecast to arrive on Tuesday (Aug 18) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 17) at 8PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+)11PM (Wed 12th Aug)3ft (0.9m) 11s
Best Surf11PM (Wed 12th Aug)3ft (0.9m) 11s
Most Powerful11AM (Tue 18th Aug)4ft (1.2m) 13s

Table - best surf conditions forecast for Hornitos over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's talk about what's cookin' at Hornitos. It's a bit of a slow burn over the next couple of weeks, but there are a few moments that might just get the heart rate up.

The overall pattern is a long stretch of small, windy, and pretty ordinary conditions, with a couple of nice windows of opportunity tucked away in there. It’s not going to be pumping, but if you’re patient, there’s something worth paddling out for.

We kick off on Wednesday the 12th of August with next to nothing. The swell is a weak 2ft from the SW with 240 units of energy – just a puddle – and that west wind is blowing straight onshore. Thursday the 13th through to Tuesday the 18th is a grind of consistent but marginal surf. Swell sizes hover around 2ft to 4ft, mostly from the SW or WSW. The real story here is a very long-period groundswell from the WSW that hits on Thursday morning with an 18-second period and 466 units of energy. That kind of period at a fairly exposed spot like Hornitos means the waves will have real shape and push, but they can also break a bit too straight for a beach break. The morning winds are light and onshore, so it’s not a total loss, but it’s not clean either. This stretch is described as marginal, with questionable tide conditions, so don't expect perfection.

The first real standout, and possibly the best on offer in the whole outlook, arrives on Tuesday the 18th of August during the afternoon. We’ve got a 3ft SW swell, 408 units of energy, and – get this – a glassy surface. The wind is recorded as “glass” from the west at only 3 mph. That’s a major positive. The waves will be clean, small, but perfectly formed for a longboard or a funboard. This is your window.

Wednesday the 19th sees the swell bump up to 4ft, but the cross-onshore wind from the SSW messes it up, especially in the afternoon when it picks up to 9 mph and gets choppy. Thursday the 20th is glassy again with a 3ft SW swell, but the conditions are still described as marginal. Might be worth a look if you’re keen.

We then hit a lull from Friday the 21st through Monday the 24th. Swell drops right back to 2ft to 3ft, and the wind is mostly cross-onshore. There are a couple of glassy pockets on Saturday the 22nd morning (2ft, 118 units) and Sunday the 23rd afternoon (3ft, 287 units), but the energy is weak and the surfable waves are described as "very ordinary." This is not the time to go charging.

Another stretch of poor conditions runs from Monday the 24th through Tuesday the 25th with fading swell and increasing cross-onshore winds.

Finally, right at the tail end of the outlook on Wednesday the 26th and into Thursday the 27th of August, we see a bit of a pulse. A new WSW swell builds, with energy hitting 523 units on Wednesday morning and 537 units that afternoon, but the swell height is only 3ft. The periods are long (17 seconds) which again suggests good shape, but the wind is light and onshore or cross-onshore. These are described as marginal, but it’s a promise of something building for the very end of the window. Keep an eye on it.

So, my pick for the best surf is that glassy Tuesday 18th August afternoon. Second choice would be the glassy windows on Saturday the 22nd morning or Sunday the 23rd afternoon, but the swell is much weaker.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Tue night, min 17°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Sat afternoon, min 15°C on Sat night). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
2
1
1
2
1
1
2
1
1
1
1
0
2
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
13
0.7
SW
12
0.6
SW
11
0.8
SW
10
0.8
WSW
18
0.7
SW
17
0.9
WSW
16
0.8
WSW
15
0.8
WSW
14
0.8
WSW
14
1.1
SW
13
1.2
WSW
12
0.9
WSW
11
0.9
WSW
10
0.8
SW
16
0.8
SW
14
0.8
SW
13
0.8
SW
14
0.8
SW
14
Wave Graph
Metric surfscale
Energy kJ
193
140
99
143
390
302
441
283
268
264
394
378
176
151
287
241
215
251
238
Wind (km/h)
0
WNW
10
W
10
SW
0
NW
10
W
10
WSW
5
WNW
10
WSW
10
WSW
5
N
10
W
10
WSW
5
NW
10
NW
10
WNW
5
ENE
10
W
10
NW
10
NNE
Wind State
glassy
on
cross-on
glassy
on
on
glassy
on
cross-on
glassy
on
on
cross-on
cross-on
cross-on
off
on
cross-on
cross-off
High Tide
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
12:23PM0.96m
1:06AM0.97m
Low Tide
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
6:23AM0.19m
6:42PM0.11m
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:07
7:05
7:05
7:05
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:23
6:23
6:24
6:24
6:24
6:25
 mm
Temp °C
23
22
22
22
21
21
19
21
21
18
19
21
17
19
19
16
18
18
16
Feels °C
22
22
21
22
21
21
21
21
20
19
19
20
18
17
18
15
16
16
14
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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