Hornitos Surf Forecast

/ Antofagasta (21 surf breaks) /

Chile (94 surf breaks) / Lat Long: (22.96° S 70.31° W)

Surf Forecasts:

Hornitos surfForecast / Antofagasta / Chile

12 Day Weather and Surf, issued 8 am Monday 15 Sep 2025 -04

Forecast update in hr min s Forecast update imminent

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

Today's Hornitos sea temperature is 14.5° C
(Which is 1.5°C colder than average for this time of year)

Best Forecast Surf Conditions for Hornitos this week:

The surf forecast for Hornitos over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 15) at 9PM. The primary swell is predicted to be 2.0m and 15s period with a secondary swell of 0.1m and 12s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Hornitos in the next 12 days are 2.1m 15s and forecast to arrive on Monday (Sep 15) at 3PM. 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+)	9PM (Mon 15th Sep)	6.5ft (2.0m) 15s
Best Surf	9PM (Mon 15th Sep)	6.5ft (2.0m) 15s
Most Powerful	3PM (Mon 15th Sep)	7ft (2.1m) 15s

Table - best surf conditions forecast for Hornitos over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Mostly dry. Warm (max 21°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light.									Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Thu afternoon, min 16°C on Thu night). Wind will be generally light.
	Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	4	2	4	3	1	2	2	0	2	2	0	0	1	0	0	2	0	2	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	16	15	15	14	14	13	13	12	12	11	11	11	11	11	11	12	11	11	10	12	7
Wave Graph (?)
Energy (?)	2185	2054	1653	1054	796	616	420	389	319	289	250	177	182	190	243	441	393	285	237	322	236
Wind (km/h)	SSW	WSW	WSW	NW	W	WNW	SSW	WSW	W	WSW	WSW	SW	WSW	WSW	SW	SSW	WSW	SSW	SSW	WSW	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	on	glass	glass	on	glass	glass	on	glass	glass	cross- on	cross- on	glass	cross- on	cross- on	glass	cross- on	glass	cross- on	cross- on	cross
High Tide / height (m)		5:20PM 0.57		5:47AM 1.05		6:50PM 0.61	6:58AM 1.09		7:52PM 0.68	7:55AM 1.12		8:39PM 0.76	8:41AM 1.15		9:17PM 0.83	9:21AM 1.14		9:52PM 0.91	9:57AM 1.12		10:24PM 0.97
Low Tide / height (m)	11:47AM 0.23		10:41PM 0.29		1:05PM 0.18	12:08AM 0.27		2:02PM 0.12	1:18AM 0.23		2:46PM 0.08	2:14AM 0.18		3:22PM 0.05		3:01AM 0.14	3:53PM 0.04		3:43AM 0.12	4:21PM 0.04

	Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
Sunrise	7:37	-	-	7:37	-	-	7:35	-	-	7:35	-	-	7:33	-	-	7:33	-	-	7:31	-	-
Sunset	-	7:35	-	-	7:35	-	-	7:35	-	-	7:36	-	-	7:36	-	-	7:36	-	-	7:36	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	19	19	16	18	19	17	20	21	19	20	21	21	20	21	20	21	21	18	20	20	17
Feels °C (?)	17	17	16	16	17	17	19	19	18	18	19	21	19	19	20	19	19	17	18	16	15

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Antofagasta

Wind Update Cross-shore wind has turned cross-on at Hornitos (light winds from the SSW.(Wind varies from 180 to 240 degs) at Antofagasta Airport/Cerro Moreno 52 km from Hornitos). 2.7m 15s groundswell from the SW to make surfable waves.
1 hour 48 minutes ago Hornitos

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hornitos surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

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 12 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.