Las Machas surf break

Las Machas surfForecast / Atacama / Chile

information circle16 Day Weather and Surf, issued 7 pm Monday 20 Apr 2026 -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
18.8° C
(Which is 2.5°C colder than average for this time of year)

Best Forecast Surf Conditions for Las Machas this week:

The surf forecast for Las Machas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Apr 21) at 2AM. The primary swell is predicted to be 2.1m and 14s 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 Las Machas in the next 16 days are 2.4m 16s and forecast to arrive on Sunday (Apr 26) at 2AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 21st Apr)7ft (2.1m) 14s
Best Surf 2AM (Tue 21st Apr)7ft (2.1m) 14s
Most Powerful 2AM (Sun 26th Apr)8ft (2.4m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 23°C on Tue afternoon, min 19°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Fri afternoon, min 19°C on Thu night). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Mon
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
3
3
3
2
1
3
2
1
3
3
3
4
2
3
4
3
3
4
3
3
Swell
Height Map
Wave Height (m) & direction (?)
2.1
SSW
1.9
SSW
1.8
SSW
1.6
SSW
1.5
SSW
1.5
SSW
1.4
SSW
1.4
SSW
1.4
SSW
0.9
SSW
1.9
SSW
2.1
SSW
2.1
SSW
2.1
SSW
2.1
SSW
2.4
SSW
2.4
SSW
2.4
SSW
2.2
SSW
2.1
SSW
2.1
SSW
Period(s) (?)141313131212121111161516151414161514141413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)17101198111784870261653647545040415892228184618231797268223492285197716721533
Wind
(km/h)
5
S
10
SW
10
SSW
5
S
10
SW
10
SW
0
NW
10
SW
15
SW
0
S
10
SW
10
SW
0
SE
10
SW
10
SW
0
SE
10
SW
10
SW
0
SSW
10
WSW
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
cross-
on
glasscross-
on
cross-
on
glasscross-
on
onglasscross-
on
cross-
on
glasscross-
on
cross-
on
glasscross-
on
cross-
on
glassoncross-
on
High Tide
/ height (m)
11:25PM
0.82
11:55AM
1.34
12:22AM
0.75
12:53PM
1.30
1:31AM
0.70
1:59PM
1.24
2:57AM
0.69
3:12PM
1.19
4:25AM
0.74
4:25PM
1.15
5:37AM
0.82
5:31PM
1.12
6:32AM
0.93
6:28PM
1.08
Low Tide
/ height (m)
5:01AM
0.21
6:52PM
0.25
5:50AM
0.27
8:02PM
0.28
6:49AM
0.34
9:17PM
0.30
8:06AM
0.40
10:30PM
0.28
9:37AM
0.42
11:30PM
0.26
11:04AM
0.41
12:18AM
0.23
12:17PM
0.38
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Mon
27
Sunrise-6:52--6:52--6:52--6:52--6:52--6:54--6:54-
Sunset--6:27--6:25--6:24--6:24--6:23--6:23--6:22
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
Rain (mm)
---------------------
Temp. °C202223202122192122192122192122192122192121
Feels °C (?)222323222222212222212222202122202122202221
  • 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 Las Machas Surf forecast

The above surf forecast table for Las Machas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Las Machas can be found by selecting the local surf guide option on the grey menu. Our Las Machas 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 (Las Machas) 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 Las Machas 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.

Las Machas is 12 km (7 miles) from the city of Arica. If you plan a holiday in Atacama, look for hotels and other accommodation in Arica. Arica has rooms for a wide range of budgets as well as car hire and transport links.

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