Surf Forecasts:
Cachagua surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 9PM (local time) - 3ft (0.9m), 16s period, WSW swell with glassy winds.
- Most powerful swell: Monday 14 Sep, 6AM (local time) - 3.5ft (1.0m), 15s period, WSW swell with 439 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 9PM (local time) - 4.5ft (1.3m), 10s period with SW 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 Saturday (Sep 12) at 9PM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.2m and 21s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cachagua in the next 16 days are 1.0m 15s and forecast to arrive on Monday (Sep 14) at 6AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 12th Sep) | 4.5ft (1.3m) 10s |
| Best Surf | 9PM (Sun 13th Sep) | 3ft (0.9m) 16s |
| Most Powerful | 6AM (Mon 14th Sep) | 3.5ft (1.0m) 15s |
Table - best surf conditions forecast for Cachagua over the next 16 days.
The Lowdown
Alright, Rusty here again, with the same look for Cachagua but in feet and miles.
To be straight with you, the next 16 days are looking pretty quiet. There isn't much to get excited about. The one standout is Tuesday the 15th morning, with a clean 3ft swell out of the WSW, a 13-second period, and glassy conditions. The wave energy is moderate (385). That's your real shot – a quiet, clean morning where you might have the place to yourself for a bit. The water is a touch warmer than normal for the season, sitting at 58°.
Beyond that, it's a lot of "ordinary" and "marginal" forecasts. Friday the 18th morning is another glassy one with 3ft waves, and Wednesday the 23rd morning shows a clean 4ft from the SW with a 9-second period – workable for the beach break set-up. The 26th (Saturday) morning looks tidy but tiny at 3ft.
The afternoons are mostly trashed by wind, and there are big gaps between any decent morning session. For example, the 12th and 13th are best left alone. The 22nd of September pushes some 5ft swell from the SW, but it's going to be blown out and messy – one for the kites, not the paddle. That size is getting into expert territory with those onshore winds.
It all dries up toward the end of the month, with the 24th to 27th dropping off into tiny, weak leftovers. This is just a quiet spell. Tuesday morning the 15th is the call if you want to get wet.
Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 17°C on Mon night, min 11°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Tue morning, min 13°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 9 | SW 8 | SW 10 | SW 9 | WSW 18 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 11 | WSW 11 | WSW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 346 | 206 | 303 | 238 | 209 | 330 | 417 | 367 | 342 | 312 | 265 | 180 | 71 | 94 | 81 | 78 | 66 | 164 | 140 | 138 | 186 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-on | cross-on | glassy | on | cross-on | on | glassy | cross-on | glassy | cross-off | cross-off | glassy | glassy | cross-on | glassy | glassy | cross-on | cross-on |
High Tide | 11:51AM1.39m | 00:15AM1.29m | 12:28PM1.28m | 00:50AM1.31m | 1:05PM1.16m | 1:26AM1.29m | 1:42PM1.02m | 2:04AM1.24m | 2:22PM0.89m | 2:47AM1.17m | 3:10PM0.77m | 3:41AM1.09m | 4:25PM0.68m | ||||||||
Low Tide | 6:06PM0.01m | 6:20AM0.07m | 6:36PM0.07m | 7:03AM0.13m | 7:05PM0.16m | 7:48AM0.21m | 7:35PM0.25m | 8:37AM0.30m | 8:05PM0.34m | 9:37AM0.39m | 8:41PM0.43m | 11:04AM0.45m | 9:35PM0.51m | ||||||||
 | |  | | | | | | | | | |  | | | | | | | | | |
 | 7:48 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — |
 | — | 7:35 | — | — | 7:36 | — | — | 7:36 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 13 | 15 | 15 | 13 | 15 | 16 | 17 | 18 | 18 | 14 | 15 | 15 | 14 | 15 | 15 | 14 | 16 | 15 | 14 |
Feels °C | 11 | 10 | 12 | 14 | 13 | 12 | 13 | 14 | 16 | 16 | 17 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | SW 8 | SW 10 | SW 9 | SW 9 | SW 9 | WSW 15 | SW 8 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 12 | SW 7 | SW 7 | WSW 11 |
| kJ | 346 | 206 | 303 | 238 | 197 | 148 | 417 | 112 | 342 | 312 | 265 | 180 | 71 | 94 | 81 | 78 | 66 | 164 | 67 | 75 | 186 |
Swell 2 Height (m) Direction Period (s) | SW 18 | WSW 10 | WSW 20 | WSW 19 | WSW 18 | WSW 16 | SW 8 | WSW 14 | SW 8 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | SW 6 | SW 20 | WSW 11 | WSW 11 | SW 7 |
| kJ | 12 | 69 | 40 | 203 | 209 | 330 | 112 | 367 | 123 | 73 | 71 | 51 | 29 | 34 | 16 | 15 | 12 | 16 | 140 | 138 | 67 |
Swell 3 Height (m) Direction Period (s) | NW 12 | WSW 16 | WSW 15 | W 16 | W 16 | W 15 | W 13 | W 13 | W 12 | — | W 12 | W 11 | WSW 10 | W 10 | WSW 15 | WSW 14 | WSW 13 | S 9 | SW 19 | SW 18 | SW 18 |
| kJ | 5 | 26 | 22 | 20 | 134 | 209 | 84 | 119 | 44 | — | 3 | 9 | 33 | 7 | 21 | 37 | 59 | 2 | 15 | 13 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 5 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 27 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 386 | 0 | 49 | 97 | 0 | 36 | 448 | 11 | 0 | 94 | 0 | 0 | 0 | 0 | 0 | 97 | 0 | 0 | 521 | 11 |
Best forecast wave conditions in Santiago | |||||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||||
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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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