Cupula Surf Break

Lat Long: 23.76° S 70.47° W

Cupula Surf Forecast and Surf Report

Issued: 7 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cupula sea temperature is
18.1°C
2.5° 

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


Cupula surf forecast from 28 Aug 2026:

  • Best quality surf: Friday 28 Aug, 11PM (local time) - 6ft (1.9m), 14s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 5AM (local time) - 7.5ft (2.3m), 16s period, SW swell with 2,513 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 11PM (local time) - 6ft (1.9m), 14s period with WSW swell.

Best Forecast Surf Conditions for Cupula this week:

The surf forecast for Cupula over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 11PM. The primary swell is predicted to be 1.9m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cupula in the next 16 days are 2.3m 16s and forecast to arrive on Friday (Aug 28) at 5AM. 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+)11PM (Fri 28th Aug)6ft (1.9m) 14s
Best Surf11PM (Fri 28th Aug)6ft (1.9m) 14s
Most Powerful 5AM (Fri 28th Aug)7.5ft (2.3m) 16s

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


The Lowdown

Alright, Rusty here. Let's have a look at what's cookin' for Cupula over the next couple of weeks. It's a reef and point set-up, exposed to the south-west, and it's a consistent spot, but honestly, the first week or so is lookin' pretty average.

We've got some solid energy pushin' in, but the winds are mostly cross or cross-on, so the face is gonna be a bit bumpy. The wave energy is strong to very strong, with values around 2061 on Friday morning, droppin' through the weekend. The swell is a long-period groundswell from the SW, about 7 ft Friday morning, with a period of 15 seconds. That's a classic groundswell for a point, so the shape should be there, but the wind's gonna mess with the surface. Water temp is about average for the time of year.

To be real, there's not much to get stoked about in the first several days. The rating's low, and the wave comments keep sayin' 'marginal at best'. The crowd is possible here.

Now, if we push out a bit, there's a flicker of something more interestin' around Tuesday the 8th of September. We get a bump in energy up to 1315 in the morning, with a 4 ft SW swell and a very long period of 16 seconds. That's proper groundswell, and with the wind still cross-shore from the SW, it's not glassy but the shape should be good. The combined energy of all swells is strong (1315). This is probably the best on offer for the whole window. But it's still got that 'marginal' tag, so keep your expectations in check.

A couple of days later, on Wednesday the 9th of September, we finally see some offshore wind. In the morning, a light WNW breeze at 6 mph, with a clean 4 ft SW swell (period 15 seconds) and moderate energy (914). This could be the real standout if you're after a clean wave. The wind'll be light and offshore, so the face should be smooth. The afternoon has a super light WSW at 3 mph, which is nearly glassy. That Wednesday morning is the one to circle on the calendar as a promising, but less certain, long-range option.

After that, it fades out again. The 11th and 12th of September see energy drop and the wind pick back up, so it's back to being a bit of a write-off. For the points in between, it's just not worth paddlin' out.

So, to wrap it up: it's a slow start. The surf is just okay for the first week, with bumpy conditions. The best bet is that Wednesday the 9th of September with the offshore wind and a solid 4 ft groundswell. The crowd is possible there, so you might have it fairly empty if you're early. For the first week or so, don't get your hopes up. If there's a lot of west in that swell direction and it's a bit fat for the beachies, the point setup here should handle it.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Fri night, min 15°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Mon morning, min 15°C on Tue night). Wind will be generally light.

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
2
3
2
1
3
2
1
1
0
1
0
0
1
1
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
SW
16
2.2
SW
15
2.1
SW
14
1.9
WSW
14
1.8
SW
13
1.7
WSW
13
1.5
WSW
12
1.4
WSW
12
1.3
WSW
12
1.3
WSW
12
1.2
WSW
11
1.4
SW
11
0.9
WSW
12
0.9
SW
12
0.8
WSW
11
1.1
SW
11
1.1
SW
10
0.6
WSW
10
0.6
SW
18
Wave Graph
Metric surfscale
Energy kJ
2107
2061
1712
1310
1110
904
702
545
464
456
335
471
239
192
154
297
217
63
260
Wind (km/h)
10
SSW
15
SW
20
SSW
15
SSW
20
SW
15
SW
5
WSW
10
SW
10
SSW
15
SSW
25
SSW
20
SW
20
SSW
20
SW
15
SSW
5
SSW
15
SW
15
SW
10
SSW
Wind State
cross
cross
cross
cross
cross
cross
glassy
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
9:29PM0.81m
9:34AM1.18m
10:01PM0.87m
10:05AM1.15m
10:33PM0.93m
10:37AM1.10m
11:07PM0.97m
11:11AM1.02m
11:43PM1.01m
11:47AM0.92m
00:25AM1.02m
12:29PM0.82m
1:14AM1.02m
Low Tide
3:08AM0.14m
4:07PM0.07m
3:45AM0.13m
4:33PM0.06m
4:24AM0.14m
4:59PM0.07m
5:05AM0.16m
5:27PM0.09m
5:50AM0.20m
5:58PM0.13m
6:43AM0.24m
6:33PM0.17m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:54
6:52
6:52
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:29
6:30
6:30
6:30
6:30
6:30
 mm
Temp °C
16
16
16
17
17
17
16
17
16
17
19
18
18
19
17
16
17
16
15
Feels °C
15
15
15
17
16
15
15
16
15
15
16
15
17
17
15
15
16
14
14
  • 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 Cupula Surf forecast

The above surf forecast table for Cupula provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cupula can be found by selecting the local surf guide option on the grey menu. Our Cupula 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 (Cupula) 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 Cupula 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 Cupula, camping, hotels and holiday cottages in Antofagasta, consider staying in Antofagasta which is 13 km (8 miles) away. Alternatively, find information about places to stay and car hire in Mejillones which is 72 km (45 miles) away

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