Hornitos Surf Break

Lat Long: 22.96° S 70.31° W

Hornitos Surf Forecast and Surf Report

Issued: 1 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Hornitos sea temperature is
17.8° C
2.2° 

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


Hornitos surf forecast from 17 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 2AM (local time) - 3ft (0.9m), 14s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 18 Aug, 2PM (local time) - 4ft (1.2m), 13s period, WSW swell with 491 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 8PM (local time) - 2.5ft (0.7m), 15s 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 17) at 8PM. The primary swell is predicted to be 0.7m and 15s period with a secondary swell of 0.5m and 8s. 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 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 18) at 5PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 17th Aug)2.5ft (0.7m) 15s
Best Surf 2AM (Tue 18th Aug)3ft (0.9m) 14s
Most Powerful 2PM (Tue 18th Aug)4ft (1.2m) 13s

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


The Lowdown

Alright, let’s get into the nitty-gritty. The next couple of weeks are a mix of flat spells and a late kick of real swell, but you’re going to need to be patient.

First thing – the water’s sitting at about 64°, which is roughly 4° warmer than it should be this time of year. That’s a genuine bonus, don’t ignore it.

The first few days are a bit of a bust. Monday afternoon has some swell, but it’s weak, cross-onshore, and lumpy – not worth getting wet for. Tuesday and Wednesday morning have a bit more size, but the wind’s going to make it messy. That Wednesday morning window is your first real chance – glassy and clean with a 3ft SW swell, but still on the smaller side.

From Thursday through the following weekend, it’s mostly small and poor. Think waist-high slop with a light cross-onshore breeze. There’s a moment on Saturday the 22nd afternoon where it turns glassy, but with only 2ft of swell, it’s a longboard day at best. Not much to get fired up about.

The real story is at the end of the run. Around Friday the 28th, you’ll see it start to build. By Saturday the 29th, a proper swell arrives – 7ft from the WSW with a 15 second period and strong energy (1700). That’s the standout. It’s a powerful groundswell with some real punch. The wind is light cross-onshore, so it won’t be perfect, but it’ll be the best surf we’ve seen in the whole forecast. This one is for the experienced crew – that size is way too much for beginners.

Sunday the 30th holds up too, with 5ft to 5ft and lighter winds. It’s promising, but it’s a week out, so don’t make plans just yet – long-range stuff is always a gamble. After that Monday, it fades and the wind picks back up, so that Saturday is your golden ticket.

One last thing – Hornitos is a consistent break, and it’s fairly exposed to the SW. When that bigger swell hits, the setup should be good. Just keep an eye on the wind as it gets closer.

Rusty out.

Short Range Forecast

Light rain (total 8mm), mostly falling on Tue night. Warm (max 25°C on Thu morning, min 15°C on Tue night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Thu afternoon, min 18°C on Fri night). Wind will be generally light.

Mon
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
0
0
1
2
0
2
1
1
2
0
0
0
0
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
14
0.9
SW
14
0.9
SW
13
1.2
WSW
13
0.9
SW
12
1
SW
12
1
SW
12
0.6
SW
16
0.8
SW
14
0.8
SW
14
0.7
SW
13
0.6
WSW
13
0.8
SW
9
0.8
SW
9
0.5
SW
11
0.5
SW
11
0.6
SSW
10
0.5
SW
11
0.5
SW
11
0.4
SW
10
Wave Graph
Metric surfscale
Energy kJ
214
331
290
491
244
268
264
161
248
248
180
109
112
99
65
57
64
58
56
24
Wind (km/h)
15
NNW
10
NE
20
NNW
30
N
10
N
5
SW
20
SSW
10
SE
5
WSW
5
SSW
0
SW
5
WNW
5
WSW
5
NNW
10
WNW
5
WNW
10
N
10
WNW
5
SW
5
NE
Wind State
cross-on
cross-off
cross-on
cross
cross
glassy
cross-on
cross-off
on
cross-on
glassy
cross-on
on
cross-on
cross-on
glassy
cross
cross-on
cross-on
cross-off
High Tide
1:06AM0.97m
1:07PM0.82m
1:57AM0.95m
1:57PM0.69m
2:56AM0.91m
3:04PM0.60m
4:06AM0.90m
4:35PM0.55m
5:19AM0.91m
6:03PM0.55m
6:21AM0.96m
7:03PM0.58m
Low Tide
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
12:43PM0.31m
11:19PM0.33m
1:33PM0.25m
00:20AM0.30m
clear
part cloud
part cloud
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:03
7:01
7:01
7:00
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:25
6:25
6:27
6:27
6:27
6:28
 mm
1
7
Temp °C
19
18
19
19
16
20
20
22
25
25
23
22
23
22
20
21
20
20
21
21
Feels °C
17
17
15
15
14
19
17
19
23
23
22
21
23
23
19
21
21
19
21
21
  • Map Icons:
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  • 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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