Cachagua Surf Break

Lat Long: 32.60° S 71.44° W

Cachagua Surf Forecast and Surf Report

Issued: 7 am 29 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cachagua sea temperature is
13.9° C
0.6° 

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


Cachagua surf forecast from 29 Jul 2026:

  • Best quality surf: Wednesday 5 Aug, 5AM (local time) - 5.5ft (1.7m), 13s period, WSW swell with glassy winds.
  • Most powerful swell: Wednesday 5 Aug, 2PM (local time) - 6ft (1.9m), 15s period, WSW swell with 1,642 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 11AM (local time) - 4.5ft (1.3m), 12s period with W swell.

Best Forecast Surf Conditions for Cachagua this week:

The surf forecast for Cachagua over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 11AM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cachagua in the next 16 days are 1.9m 15s and forecast to arrive on Wednesday (Aug 05) at 2PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+)11AM (Wed 29th Jul)4.5ft (1.3m) 12s
Best Surf 5AM (Wed 5th Aug)5.5ft (1.7m) 13s
Most Powerful 2PM (Wed 5th Aug)6ft (1.9m) 15s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s coming up for Cachagua. The next couple of weeks have a nice run of swell for us, with a real standout window that’ll get the heart pumping.

We kick things off Wednesday morning, July 29th. The water is sitting at 57°, which is pretty standard for this time of year. We’ve got a clean 4ft groundswell rolling in from the W with a 12-second period. The wind is dead calm, glassy as can be. Wave energy is moderate (499). It’s a solid, clean start for the beginner-friendly waves here. The only bummer is the crowds – they hit this spot sometimes, so be prepared to share it.

The surf settles a touch on Thursday morning, July 30th, with a smaller 3ft WSW swell, but it’s clean with a light offshore breeze. By Thursday afternoon, the wind shifts to a clean offshore from the NNE at 9 mph, and the swell bumps back up to a nice 4ft from the W. That’s a sweet combo.

Friday, July 31st, is where it starts getting good. Heavy rain in the morning, but the wind is a solid offshore from the NE at 9 mph. Swell is 5ft from the WNW with a short 9-second period, giving it a bit of a punchy feel. Wave energy is moderate to strong (730). The afternoon cleans up to cloudy skies and a lighter offshore breeze, still holding at 4ft. Good times.

Now, Saturday, August 1st, is a real highlight. We’re looking at a 5ft groundswell from the WSW with a long 13-second period. The wind is glassy, dead calm. Wave energy is strong (936). This is a beautiful, long-period groundswell that will wrap in nicely. The conditions are going to be clean and lined up. The water is still calm, and the vibe is right. This is the best morning of the first week.

Sunday morning, August 2nd, is small and clean with a 2ft SW groundswell and glassy conditions, but it’s a bit of a lull before the afternoon turns onshore and messy.

Monday, August 3rd, and Tuesday, August 4th, both have solid 5ft WSW swells with a 10-second period. The mornings are glassy, offering clean, fun waves. Wave energy is moderate to strong (around 587-672). These are great, consistent days.

Now, hold on to your board. Wednesday, August 5th, is the absolute standout of the entire outlook. The swell jumps to 7ft in the morning and 8ft in the afternoon, coming from the WSW with a very long 15-second period in the morning and 14 seconds in the afternoon. The wind is glassy, dead calm. The wave energy is very strong (2119 in the morning, 2200 in the afternoon). This is a powerful, long-period groundswell that will be firing. This is for experienced surfers only – it’s too big for beginners. The consistency will be there, but the sets will be spaced out with that long period. It’s a big, clean, powerful day.

After that, the wind turns onshore from Thursday, August 6th, through the weekend, making conditions messy. The swell hangs around 5ft to 7ft, but the onshore wind will chop it up. Not great for paddling.

We get a bit of a reprieve on Monday, August 11th and Tuesday, August 12th, but it’s small and weak – 2ft to 2ft. The energy is low (173-135). It’s surfable but ordinary.

The outlook finishes on a positive note. Thursday, August 13th, brings a 4ft WSW groundswell with a 10-second period back into the picture. The wind is glassy, and the energy is moderate (343). A good, clean end to the run.

To sum it up: Saturday, August 1st, is your primo day for clean, fun waves on a nice groundswell. But the real beast is Wednesday, August 5th – that is a powerful, expert-level day with a very long period groundswell. If you’ve got the skill, that’s the one to circle.

Rusty.

Short Range Forecast

Heavy rain (total 20mm), heaviest during Fri morning. Very mild (max 17°C on Wed afternoon, min 13°C on Fri morning). Winds increasing (calm on Wed night, fresh winds from the N by Fri morning).

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun afternoon. Very mild (max 16°C on Sat afternoon, min 14°C on Sat night). Wind will be generally light.

Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
2
3
2
3
2
3
3
3
2
3
2
2
2
3
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
W
12
1.1
W
11
0.9
W
11
0.8
WSW
12
1.2
W
11
1.8
W
11
1.9
WNW
10
1.4
WNW
9
1
W
10
1.3
W
9
1.4
SW
12
1.1
SW
12
1
W
9
1.9
WSW
11
1.8
W
11
1.2
WSW
11
1.8
WSW
11
1.6
WSW
11
1.2
WSW
10
1.4
WSW
14
1.6
WSW
13
Wave Graph
Metric surfscale
Energy kJ
464
307
191
186
329
716
665
313
196
274
540
344
152
927
762
366
705
551
324
671
892
Wind (km/h)
5
NNE
5
WSW
0
NW
10
NNW
10
N
15
NNE
20
N
10
ENE
5
ESE
5
W
5
WSW
0
NW
10
N
5
S
5
SSE
10
SW
10
SW
5
ENE
5
NW
5
NW
5
NE
Wind State
glassy
cross-on
glassy
cross-off
off
off
cross-off
cross-off
glassy
glassy
glassy
glassy
cross-off
glassy
cross-on
cross-on
cross-on
glassy
glassy
cross-off
glassy
High Tide
10:21AM1.40m
10:50PM0.91m
10:54AM1.42m
11:22PM0.94m
11:26AM1.41m
11:55PM0.97m
11:57AM1.36m
00:28AM1.01m
12:29PM1.29m
1:04AM1.04m
1:03PM1.19m
1:43AM1.07m
1:41PM1.08m
2:29AM1.09m
Low Tide
5:04PM0.13m
4:20AM0.21m
5:34PM0.11m
4:55AM0.20m
6:03PM0.11m
5:31AM0.21m
6:31PM0.12m
6:08AM0.24m
6:58PM0.15m
6:49AM0.29m
7:28PM0.18m
7:38AM0.35m
8:01PM0.23m
cloud
cloud
part cloud
clear
clear
part cloud
heavy rain
light rain
clear
part cloud
cloud
cloud
cloud
light rain
part cloud
clear
cloud
part cloud
cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:37
7:35
7:35
7:33
7:33
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:06
6:07
6:07
6:07
6:08
6:09
6:09
 mm
18
2
1
5
Temp °C
15
17
15
16
16
16
13
14
15
15
16
15
15
15
16
15
15
14
16
15
13
Feels °C
15
16
15
15
13
13
6
12
13
13
15
14
13
13
14
14
13
14
15
13
10
  • 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 Cachagua Surf forecast

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

Cachagua is 22 km (14 miles) from Quintero. If you plan a holiday in Santiago, look for hotels and other accommodation in Quintero. Quintero has rooms for a wide range of budgets as well as car hire and transport links.

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