Las Machas Surf Forecast

/ Atacama (12 surf breaks) /

Chile (102 surf breaks) / Lat Long: (18.40° S 70.33° W)

Surf Forecasts:

Las Machas surfForecast / Atacama / Chile

48hr Weather and Surf, issued 8 pm Monday 20 Oct 2025 -04

Forecast update in hr min s Forecast update imminent

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

Today's Las Machas sea temperature is 16.4° C
(Which is 2.4°C colder than average for this time of year)

How big are the waves at Las Machas today?

The current surf forecast for Las Machas at 11PM is: 1.2m 11s primary swell from a South-southwest direction and 0.3m 17s secondary swell from a Southwest direction (forecast issued at 08:00pm October 20). The wind direction is predicted to be glassy and the swell rating is 2.

Time (-04) & Date	Wave Height	Wave Period
Morning (20 Oct)	-	-
Afternoon (20 Oct)	-	-
Evening (20 Oct)	4.5ft (1.3m)	11s

Table - waves today at Las Machas. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Mon 20		Tuesday 21								Wednesday 22								Thursday 23
	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM
Rating (10 max)	1	2	2	2	2	2	1	0	1	2	2	2	2	2	1	1	1	3	3	3	3	3	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SSW	SSW	SSW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SSW	SSW	SSW	SSW	SW	SSW	SSW	SSW	SSW	SSW	SSW
Period(s) (?)	11	11	11	11	11	11	10	10	10	10	10	10	15	17	17	17	15	16	16	14	14	14	14	14
Wave Graph (?)
kJ (?)	372	366	311	305	258	234	225	182	175	154	125	122	104	172	381	510	414	558	641	561	515	515	595	569
Wind (km/h)	SW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	S	SW	SW	SW	E	SW	WSW	SW	NE	WSW	SE	SSE	SW	SW	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	glass	glass	glass	glass	glass	on	on	on	glass	glass	glass	glass	glass	on	on	on	glass	glass	glass	glass	glass	on	on
High Tide / height (m)			9:52PM 1.12				9:56AM 0.96				10:23PM 1.16				10:28AM 0.90				10:54PM 1.18				11:00AM 0.83
Low Tide / height (m)	3:29PM 0.18				4:05AM 0.26				3:55PM 0.20				4:45AM 0.26				4:20PM 0.22				5:24AM 0.28

	Mon 20		Tuesday 21								Wednesday 22								Thursday 23
Sunrise	-	-	-	-	-	7:07	-	-	-	-	-	-	-	7:07	-	-	-	-	-	-	-	7:05	-	-
Sunset	7:43	-	-	-	-	-	-	-	7:44	-	-	-	-	-	-	-	7:44	-	-	-	-	-	-	-

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

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 Atacama

Wind Update Continuing clean conditions at Las Machas (light winds from the WSW at Arica 5 km from Las Machas). 1.1m 11s groundswell from the SSW with a 0.3m 17s long period groundswell from the SW. 2 swells combining to make bigger set waves.
1 hour 35 minutes ago Las Machas

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1 h 35 min ago

6 km/h

WSW

Clean

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