Surf Forecast Surf Report
Las Machas surf break

Las Machas surfForecast / Atacama / Chile

information circle12 Day Weather and Surf, issued 7 am Saturday 17 May 2025 -04
Forecast update in -1hr 3 min 29 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
64.2°F
(Which is 3.4°F 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 17) at 2PM. The primary swell is predicted to be 7ft and 14s period with a secondary swell of 0ft and 22s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Las Machas in the next 12 days are 8ft 16s and forecast to arrive on Friday (May 23) at 5PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Sat 17th May)7ft (2.1m) 14s
Best Surf 8AM (Fri 23rd May)7.5ft (2.3m) 17s
Most Powerful 5PM (Fri 23rd May)8ft (2.5m) 16s

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

Updates in -1 hr 3 min 29 s Forecast update imminent
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
Swell
Height Map
Wave Height (ft) & direction (?)
7
SW
7
SSW
7
SSW
6.5
SSW
6
SW
6
SW
6
SSW
6.5
SSW
6
SSW
5.5
SSW
5
SSW
4.5
SW
6
SW
6
SW
6
SW
6
SW
5
SW
5
SW
7.5
SW
8
SW
8
SW
7.5
SW
7
SW
10
SW
8
SW
8
SW
7
SW
6
SW
6
SSW
6.5
SSW
6.5
SSW
6
SSW
5.5
SSW
5.5
SSW
5.5
SSW
5
SSW
Period(s) (?)141514141313131312121119181716161515171616151517161615141414131312121211
Wave
Graph
(?)Metric surfscale
Energy (?)172222411960150913081127123512891039769583111119011691155217641138118931253233273225532055485634553260208915331427158213491162878835718553
Wind
(mph)
5
SW
5
SSW
5
SSE
5
SW
5
SW
5
SSE
5
SSW
5
SW
5
S
5
SW
5
SW
5
SSW
5
WSW
5
WSW
5
SW
5
WSW
5
WSW
5
SSW
5
WSW
5
SW
0
NE
5
WSW
5
SW
0
ESE
5
SW
5
SW
0
ESE
5
SW
5
SW
0
WSW
5
SW
5
SW
5
SSW
5
SW
5
SW
5
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
glasscross-
on
cross-
on
glasscross-
on
cross-
on
glassoncross-
on
glassonglassglassononglassononglassononglasscross-
on
cross-
on
glasscross-
on
cross-
on
glasscross-
on
onglassglassglassglass
High Tide
/ height (ft)
12:07PM
3.81
12:42AM
2.07
12:51PM
3.71
1:45AM
2.07
1:43PM
3.64
2:57AM
2.2
2:40PM
3.54
4:06AM
2.43
3:41PM
3.45
5:04AM
2.79
4:43PM
3.35
5:55AM
3.22
5:42PM
3.22
6:43AM
3.67
6:39PM
3.12
7:29AM
4.1
7:34PM
2.95
8:16AM
4.46
8:27PM
2.82
9:03AM
4.69
9:20PM
2.66
9:51AM
4.76
10:13PM
2.53
Low Tide
/ height (ft)
7:22PM
1.12
5:39AM
1.31
8:15PM
1.12
6:33AM
1.44
9:08PM
1.05
7:44AM
1.54
9:57PM
0.95
9:10AM
1.57
10:42PM
0.79
10:34AM
1.48
11:25PM
0.66
11:50AM
1.28
12:06AM
0.52
12:56PM
1.05
12:47AM
0.39
1:57PM
0.79
1:29AM
0.33
2:54PM
0.59
2:13AM
0.3
3:50PM
0.49
2:57AM
0.36
4:45PM
0.46
3:43AM
0.46
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Sunrise7:00--7:01--7:01--7:01--7:01--7:01--7:03--7:03--7:03--7:03--7:03--7:03--
Sunset-6:14--6:14--6:13--6:13--6:13--6:13--6:12--6:12--6:12--6:12--6:12--6:12-
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Rain (in)
------------------------------------
Temp. °F666863666863646663646863666863666863666863666863666863646863666663666663
Feels °F (?)666864666664646464646864686864686666666666686866666866646666666464686464

Short Range Forecast: Mostly dry. Warm (max 68°F on Sat afternoon, min 61°F on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 68°F on Tue afternoon, min 61°F on Tue morning). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 68°F on Fri afternoon, min 61°F on Sat night). Wind will be generally light.

Long Range Forecast: Mostly dry. Warm (max 68°F on Mon afternoon, min 61°F on Mon night). Wind will be generally light.

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  • Live Wind Speed (mph)
  • Surf Rating (10 Max)
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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 12 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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