Isla Santa Maria surfForecast / Antofagasta / Chile

information circle16 Day Weather and Surf, issued 7 am Sunday 03 May 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
15.8° C
(Which is 3.0°C colder than average for this time of year)

Best Forecast Surf Conditions for Isla Santa Maria this week:

The surf forecast for Isla Santa Maria over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 03) at 8PM. The primary swell is predicted to be 1.9m and 13s period with a secondary swell of 0.3m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Isla Santa Maria in the next 16 days are 3.0m 18s and forecast to arrive on Friday (May 08) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 3rd May)6ft (1.9m) 13s
Best Surf 8PM (Fri 8th May)6ft (1.9m) 16s
Most Powerful 8AM (Fri 8th May)10ft (3.0m) 18s

Table - best surf conditions forecast for Isla Santa Maria over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun afternoon, min 15°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Wed afternoon, min 15°C on Fri night). Winds decreasing (fresh winds from the S on Thu night, calm by Fri night).

Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
4
2
4
4
4
4
4
3
3
2
2
3
3
4
4
5
3
4
4
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
2.1
SSW
14
2
SSW
13
1.8
SSW
13
1.5
SSW
12
1.3
SW
16
1.8
SW
15
2.1
SW
14
2.1
SW
13
1.8
SW
13
1.8
SW
12
1.6
SW
12
1.3
SW
12
1
SW
21
1.9
SW
19
2.1
SW
18
2.1
SW
17
2
SW
16
1.9
SW
16
2.3
SSW
11
2
SSW
11
1.8
SSW
11
Wave Graph
Metric surfscale
Energy kJ
1515
1329
1083
658
844
1441
1779
1561
1137
944
773
503
881
2553
2720
2570
2109
1715
1291
928
785
Wind (km/h)
5
W
10
SSW
5
S
10
WNW
5
SSW
5
ENE
5
SW
15
S
5
ESE
10
SSW
15
S
20
S
25
SSW
25
S
30
S
15
SSW
10
SSW
0
ENE
5
W
10
SSW
5
SSE
cross-on
cross
cross-off
on
glassy
glassy
glassy
cross-off
glassy
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
glassy
cross-on
cross-off
cross-off
High Tide
10:22AM1.16m
10:48PM0.71m
10:59AM1.13m
11:30PM0.66m
11:41AM1.09m
00:17AM0.61m
12:26PM1.04m
1:12AM0.56m
1:16PM0.99m
2:20AM0.54m
2:10PM0.96m
3:35AM0.56m
3:06PM0.94m
4:41AM0.61m
Low Tide
5:08PM0.14m
4:17AM0.20m
5:52PM0.17m
4:51AM0.24m
6:42PM0.20m
5:27AM0.29m
7:38PM0.24m
6:08AM0.33m
8:40PM0.26m
6:57AM0.38m
9:42PM0.26m
8:02AM0.42m
10:34PM0.24m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:03
7:03
7:03
7:05
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:14
6:13
6:12
6:12
6:10
6:10
Temp °C
17
18
16
17
17
16
18
18
16
17
18
16
18
18
16
17
17
15
16
17
15
16
18
16
17
17
17
19
17
16
17
17
14
15
16
13
16
15
15
16
16
14
Swell 1
Height (m)
Direction
Period (s)
2.1
SSW
14
2
SSW
13
1.8
SSW
13
1.5
SSW
12
1.4
SSW
12
1.8
SW
15
2.1
SW
14
2.1
SW
13
1.8
SW
13
1.8
SW
12
1.6
SW
12
1.3
SW
12
1.1
SW
6
2
SW
13
2.1
SW
18
2.2
SW
11
2.4
SW
10
2.4
SSW
11
2.3
SSW
11
2
SSW
11
1.8
SSW
11
Energy kJ
1515
1329
1083
658
527
1441
1779
1561
1137
944
773
503
88
1319
2720
1148
1264
1301
1291
857
785
Swell 2
Height (m)
Direction
Period (s)
0.3
NW
13
0.4
WNW
16
0.2
WNW
13
0.7
SW
18
1.3
SW
16
0.9
SSW
8
0.3
NW
15
0.3
NW
14
0.5
SSW
6
0.3
SW
20
0.5
SW
18
0.7
SW
18
1
SW
21
1.9
SW
19
1.4
SW
7
2.1
SW
17
2
SW
16
1.9
SW
16
1.4
SW
15
1.5
SW
14
1.4
SW
14
Energy kJ
28
85
17
311
844
98
33
33
24
60
157
319
881
2553
200
2570
2109
1715
930
928
742
Swell 3
Height (m)
Direction
Period (s)
0.3
WNW
16
0.3
NW
13
0.2
WNW
16
0.2
WNW
13
0.2
WNW
16
0.7
SSW
11
0.2
WNW
12
0.1
NW
10
0.3
NW
14
0.2
WNW
13
0.4
NW
13
0.4
SW
24
1
SSW
13
0.7
SSW
12
1.2
SW
12
0.2
WNW
12
0.2
WNW
12
0.3
NW
15
0.2
WNW
15
0.2
WNW
19
0.3
NW
14
Energy kJ
50
27
25
17
24
103
14
4
32
17
45
141
351
127
407
14
14
33
21
37
29
Wind waves
Height (m)
Direction
Period (s)
0.7
SSW
5
Energy kJ
22
Nearest Offshore or Glassy
Rating
(10 max)
2
2
4
2
4
4
4
4
4
2
3
2
4
4
4
4
4
5
4
4
4
Distance (km)
136
136
0
136
0
0
0
0
0
43
0
61
184
237
65
357
237
0
3
0
0
Best forecast wave conditions in Antofagasta
Rating
(10 max)
2
4
4
4
4
4
4
4
3
3
5
4
5
4
4
4
Best forecast wave conditions in Chile
Rating
(10 max)
3
4
4
3
5
4
4
4
4
3
4
3
6
4
5
4
4
5
4
4
4
Header Global
Rating
(10 max)
4
4
4
5
5
5
5
5
6
8
6
5
6
6
7
7
5
5
5
4
6
  • 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 Isla Santa Maria Surf forecast

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

Are you planning a holiday in Antofagasta? If you are looking for accommodation near Isla Santa Maria, camping, hotels and holiday cottages in Antofagasta, consider staying in Antofagasta which is 35 km (22 miles) away. Alternatively, find information about places to stay and car hire in Mejillones which is 39 km (24 miles) away

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