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Cahuil surfForecast / Santiago / Chile
12 Day Weather and Surf, issued 2 pm Monday 13 Oct 2025 -04
Best Forecast Surf Conditions for Cahuil this week:
The surf forecast for Cahuil over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Oct 14) at 6AM. The primary swell is predicted to be 2.5m and 15s period with a secondary swell of 1.3m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cahuil in the next 12 days are 3.0m 15s and forecast to arrive on Tuesday (Oct 14) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 12s period and expected on Friday (Oct 17) at 3AM.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 14th Oct) | 8ft (2.5m) 15s |
| Best Surf | 9AM (Tue 14th Oct) | 10ft (3.0m) 15s |
| Most Powerful | 9AM (Tue 14th Oct) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Cahuil over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 17°C on Tue morning, min 10°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Fri morning, min 9°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  | |||||||||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 16 | 15 | 15 | 14 | 14 | 16 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 11 | 6 | 21 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 1410 | 2122 | 3197 | 2840 | 2383 | 2586 | 2553 | 2824 | 2405 | 2354 | 2884 | 1656 | 1380 | 1562 | 1080 | 884 | 774 | 562 | 187 | 184 | 124 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | glass | cross | glass | glass | cross- on | cross- on | cross | cross- on | cross | cross | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross | ||
High Tide / height (m) | 5:04PM 0.74 | 5:13AM 1.25 | 6:49PM 0.77 | 6:40AM 1.23 | 8:03PM 0.86 | 7:50AM 1.24 | 8:52PM 0.97 | 8:45AM 1.25 | 9:30PM 1.07 | 9:28AM 1.25 | 10:02PM 1.17 | 10:05AM 1.23 | 10:31PM 1.25 | 10:39AM 1.19 | |||||||||
Low Tide / height (m) | 10:11PM 0.45 | 12:42PM 0.25 | 11:56PM 0.47 | 1:50PM 0.21 | 1:23AM 0.42 | 2:40PM 0.16 | 2:27AM 0.34 | 3:18PM 0.12 | 3:17AM 0.26 | 3:49PM 0.11 | 3:59AM 0.20 | 4:17PM 0.11 | 4:37AM 0.16 | ||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||
| Sunrise | - | - | 7:05 | - | - | 7:05 | - | - | 7:03 | - | - | 7:03 | - | - | 7:01 | - | - | 7:00 | - | - | 6:58 | ||
| Sunset | 8:00 | - | - | 8:00 | - | - | 8:01 | - | - | 8:02 | - | - | 8:04 | - | - | 8:04 | - | - | 8:05 | - | - | ||
 |  | | |  |  | | | | | | | | |  | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 15 | 12 | 17 | 16 | 12 | 15 | 16 | 11 | 16 | 17 | 13 | 18 | 18 | 13 | 18 | 16 | 11 | 16 | 15 | 11 | 18 | ||
| Feels °C (?) | 10 | 10 | 15 | 14 | 12 | 12 | 13 | 8 | 12 | 12 | 10 | 14 | 14 | 10 | 15 | 14 | 9 | 13 | 11 | 8 | 13 | ||
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Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Santiago
Continuing clean conditions at Cahuil (light winds from the WSW at San Rafael wx 60 km from Cahuil). 1.8m 7s swell from the SW with a 1.6m 15s groundswell, also from the SW. 2 swells combining so expect closeout sets.
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 Cahuil 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.
Information about the Cahuil Surf forecast
The above surf forecast table for Cahuil provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cahuil can be found by selecting the local surf guide option on the grey menu. Our Cahuil 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 (Cahuil) 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 Cahuil 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.
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