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Surf Forecasts:

Isla Santa Maria surfForecast / Antofagasta / Chile

information circle48hr Weather and Surf, issued 2 am Wednesday 18 Mar 2026 -04
Forecast update in hr  min  s Forecast update imminent
Isla Santa Maria surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Isla Santa Maria sea temperature is
18.0° C
 (Which is 3.1°C colder than average for this time of year)

How big are the waves at Isla Santa Maria today?

The current surf forecast for Isla Santa Maria at 9AM is: 1.7m 12s primary swell from a South-southwest direction and 0.5m 17s secondary swell from a Southwest direction (forecast issued at 02:00am March 18). The wind direction is predicted to be cross-shore.

Time (-04) & DateWave HeightWave Period
Morning (18 Mar)5.5ft (1.7m)12s
Afternoon (18 Mar)7ft (2.1m)13s
Evening (18 Mar)7ft (2.2m)13s

Table - waves today at Isla Santa Maria. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM
Rating
(10 max)
4
4
3
3
3
2
2
3
3
4
4
4
2
2
3
3
4
4
4
3
2
1
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.9
SSW
1.7
SSW
1.7
SSW
1.7
SSW
1.9
SSW
2.1
SSW
2.1
SSW
2.2
SSW
2.3
SSW
2.4
SSW
2.4
SSW
2.3
SW
2.2
SSW
2.2
SW
2.1
SSW
2
SSW
1.9
SW
1.9
SSW
1.8
SW
1.7
SSW
1.5
SSW
1.5
SSW
1.5
SSW
1.6
SSW
Period(s) (?)131212121213131314141414141313131313121212121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)114490887887810731341143016731973225022502066180515991475135912301144996795669658658722
Wind
(km/h)
15
S
10
S
5
SSE
10
SSW
15
SSW
15
SSW
20
SSW
15
S
15
S
10
S
10
S
15
S
15
SSW
20
SSW
20
S
20
S
15
S
10
S
10
S
10
S
15
SSW
15
SSW
20
S
25
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		crosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscross-
off		cross-
off
High Tide
/ height (m)
10:11AM
0.92
10:16PM
1.14
10:44AM
1.01
10:52PM
1.11
11:19AM
1.09
Low Tide
/ height (m)
4:12AM
0.05
4:01PM
0.12
4:39AM
0.03
4:43PM
0.09
5:07AM
0.02
5:28PM
0.08
Wednesday
18
Thursday
19
Friday
20
Sunrise---7:45-------7:45-------7:45----
Sunset------7:54-------7:53-------7:52-
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
Rain (mm)
------------------------
Temp. °C181919192121201919191919202020191919191920201919
Feels °C (?)182020202120191819201919191818171819191919181616
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Isla Santa Maria 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.

View detailed surf forecast for Isla Santa Maria at:
surf-forecast.com

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