Surf Forecasts:
Hornitos surf forecast from 31 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 5AM (local time) - 3ft (0.9m), 12s period, WSW swell with glassy winds.
- Most powerful swell: Friday 4 Sep, 11AM (local time) - 4ft (1.2m), 14s period, WSW swell with 561 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 5AM (local time) - 3ft (0.9m), 12s 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 Tuesday (Sep 01) at 5AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 1.1m 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 1.2m 14s and forecast to arrive on Friday (Sep 04) 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+) | 5AM (Tue 1st Sep) | 3ft (0.9m) 12s |
| Best Surf | 5AM (Tue 1st Sep) | 3ft (0.9m) 12s |
| Most Powerful | 11AM (Fri 4th Sep) | 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 proper look at what’s on the cards for Hornitos over the next couple of weeks.
Right off the bat, I gotta be honest with you – this is a tough stretch. The opening days are pretty grim, with poor surf and a lot of cross-onshore chop. The water temp is sitting at 65°F, which is a solid 5°F warmer than usual for this time of year – that’s notably warm, so you might not need the thickest rubber.
The first half of the week is pretty much a write-off. Monday morning (31 August) kicks off with poor surf conditions, a weak 4ft swell from the southwest, and a cross-on breeze that’s got things messy. The combined energy is only 313 (weak). It stays like that through Monday afternoon. Not worth paddling out.
Tuesday and Wednesday (1 and 2 September) are still marginal, but there’s a glimmer. On Wednesday afternoon, the wind goes glassy, and the swell is 3ft from the WSW with a period of 10 seconds. The energy is moderate at 355. It’s not pumping, but it’s clean and surfable for a session. That’s probably your best bet in the early part of the forecast.
Thursday (3 September) brings a long-period pulse – 18 seconds on the morning, 16 seconds in the afternoon – but the swell is tiny (2ft to 3ft) and the wind is onshore or cross-on. The energy is moderate (411 and 461), but with those conditions, it’s hard to get excited. A long-period groundswell like that usually needs a point or reef to shape up, but with the wind against it, it’s a miss.
Friday (4 September) has the biggest swell of the run – 4ft from the WSW in the morning, period 14 seconds, and energy at 673 (strong). But the wind is onshore again, and it’s rated marginal. Could be a fun one for the more experienced crew if you can find a corner that’s not too blown out, but it’s not a clean standout.
From Saturday (5 September) onward, it’s a slow decline. The swell drops off, and the wind stays cross-on or onshore most of the time. There’s a long gap of poor to marginal days with no real recommendations. The energy drops into the weak range (under 200) by the 11th and 12th, and the swell is barely 2ft. Not much to work with.
The only other bright spot is Sunday afternoon (13 September) – glassy conditions, but the swell is just 2ft from the SW, period 11 seconds, and energy is weak at 112. It’s surfable but very ordinary. After that, the run fizzles out completely with tiny, poor surf through the 15th.
So, if you’re itching to get wet, aim for Wednesday afternoon (2 September) – that glassy window with moderate energy is your best shot. For the more adventurous, Friday morning (4 September) might offer a bit more size, but expect onshore wind to mess with the shape. The rest of the period is a long, quiet stretch.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Mon afternoon, min 16°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat afternoon, min 17°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 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 11 | WSW 11 | WSW 12 | SW 11 | SW 11 | SW 11 | WSW 10 | WSW 10 | SW 17 | SW 18 | SW 16 | WSW 16 | WSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 16 |
Wave Graph | |||||||||||||||||||||
288 | 261 | 243 | 250 | 303 | 268 | 178 | 164 | 181 | 312 | 395 | 441 | 561 | 482 | 412 | 253 | 196 | 199 | 199 | 246 | 206 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | on | cross-off | cross-on | glassy | glassy | on | cross-on | cross | on | on | glassy | on | cross-on | glassy | on | cross-on | glassy |
High Tide | 11:06AM1.00m | 11:39PM0.99m | 11:42AM0.91m | 00:20AM1.00m | 12:24PM0.80m | 1:10AM1.00m | 1:16PM0.69m | 2:13AM0.99m | 2:30PM0.60m | 3:30AM1.00m | 4:10PM0.56m | 4:52AM1.05m | 5:42PM0.59m | ||||||||
Low Tide | 5:23PM0.09m | 5:46AM0.20m | 5:53PM0.13m | 6:39AM0.24m | 6:28PM0.17m | 7:45AM0.29m | 7:13PM0.22m | 9:12AM0.31m | 8:14PM0.26m | 10:51AM0.28m | 9:37PM0.28m | 12:11PM0.21m | 11:04PM0.25m | ||||||||
6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 7:46 | — | — | |
— | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 7:31 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 22 | 23 | 22 | 19 | 20 | 20 | 18 | 20 | 21 | 19 | 21 | 21 | 19 | 21 | 22 | 20 | 22 | 23 | 21 |
Feels °C | 20 | 22 | 20 | 23 | 22 | 21 | 20 | 20 | 19 | 19 | 20 | 20 | 21 | 20 | 20 | 20 | 21 | 20 | 20 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 11 | WSW 11 | WSW 12 | SW 11 | SW 11 | SW 11 | WSW 10 | WSW 10 | WSW 10 | SW 18 | SW 16 | WSW 16 | WSW 14 | SW 14 | SW 13 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 9 |
288 | 261 | 243 | 250 | 303 | 268 | 178 | 164 | 81 | 312 | 395 | 441 | 561 | 482 | 412 | 177 | 163 | 101 | 137 | 134 | 84 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 6 | SW 16 | SW 7 | SW 15 | SW 19 | SW 18 | SW 19 | SW 17 | WSW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 13 | SW 13 | SW 13 | SW 12 | SW 18 | SW 16 |
13 | 22 | 41 | 60 | 77 | 175 | 116 | 127 | 181 | 54 | 50 | 74 | 112 | 147 | 120 | 253 | 196 | 199 | 110 | 246 | 206 | |
Swell 3 Height (m) Direction Period (s) | — | SW 18 | WSW 20 | SW 18 | SW 19 | — | SW 14 | SW 14 | SW 10 | SW 10 | WSW 9 | WSW 11 | — | — | — | SW 23 | SW 21 | SW 20 | SW 18 | SW 12 | SW 12 |
— | 50 | 37 | 109 | 94 | — | 65 | 64 | 48 | 45 | 16 | 48 | — | — | — | 21 | 72 | 186 | 199 | 89 | 69 | |
Wind waves Height (m) Direction Period (s) | SW 5 | — | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
12 | — | 118 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 305 | 305 | 172 | 127 | 78 | 0 | 127 | 0 | 0 | 305 | 61 | 51 | 127 | 61 | 0 | 127 | 305 | 0 | 127 | 305 | 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.











