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Surf Forecasts:

Isla Negra surfForecast / Santiago / Chile

information circle12 Day Weather and Surf, issued 8 pm Wednesday 14 Jan 2026 -04
Forecast update in hr  min  s Forecast update imminent
Isla Negra surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Isla Negra sea temperature is
17.7° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Isla Negra this week:

The surf forecast for Isla Negra over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jan 15) at 6AM. The primary swell is predicted to be 0.7m and 20s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Isla Negra in the next 12 days are 0.7m 20s and forecast to arrive on Thursday (Jan 15) at 6AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 15s period and expected on Thursday (Jan 15) at 6PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Thu 15th Jan)2.5ft (0.7m) 20s
Best Surf 6AM (Thu 15th Jan)2.5ft (0.7m) 20s
Most Powerful 6AM (Thu 15th Jan)2.5ft (0.7m) 20s

Table - best surf conditions forecast for Isla Negra over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 19°C on Fri morning, min 14°C on Wed night). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Sat morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Sun morning, min 14°C on Mon night). Wind will be generally light.

Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wed
21
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
2
1
1
2
0
2
2
1
2
0
0
2
2
0
2
2
0
1
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
NW
0.6
WNW
0.5
NW
0.6
NW
0.7
NW
0.6
NW
0.6
NW
0.6
NW
0.8
NW
0.7
NW
0.6
NW
0.7
NW
0.6
WNW
0.6
NW
0.7
NW
0.7
NW
0.6
WNW
0.7
NW
0.6
NW
0.7
NW
0.7
NW
Period(s) (?)202019181818171616161515191418181716161615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)140253184263319252238208310248181209251139319319197264208258239
Wind
(km/h)
15
S
10
SSE
25
SW
20
SSW
0
SW
15
WSW
15
SSW
0
SW
15
SW
15
SSW
15
NNW
15
WNW
5
WSW
5
NW
20
WNW
5
S
10
SSW
15
WSW
25
SSW
5
SSW
20
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
off		glasscrosscross-
off		glasscross-
off		cross-
off		oncross-
on		glassglasscross-
on		cross-
off		cross-
off		crosscross-
off		glasscross-
off
High Tide
/ height (m)
9:04PM
1.20
9:42AM
0.78
9:48PM
1.27
10:24AM
0.81
10:27PM
1.34
11:00AM
0.84
11:03PM
1.40
11:34AM
0.87
11:38PM
1.44
12:06PM
0.90
12:11AM
1.46
12:39PM
0.92
12:44AM
1.45
1:14PM
0.95
Low Tide
/ height (m)
4:01AM
0.32
3:02PM
0.37
4:41AM
0.25
3:44PM
0.32
5:17AM
0.19
4:23PM
0.27
5:51AM
0.14
4:59PM
0.22
6:23AM
0.11
5:34PM
0.19
6:54AM
0.09
6:09PM
0.18
7:24AM
0.09
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wed
21
Sunrise-6:52--6:52--6:54--6:54--6:56--6:56--6:56-
Sunset--8:59--8:59--8:58--8:58--8:58--8:57--8:57
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C161818161919151919171919171818161718161818
Feels °C (?)141515151717131817171717171616161516131615
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Isla Negra 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.

View detailed surf forecast for Isla Negra at:
surf-forecast.com

Information about the Isla Negra Surf forecast

The above surf forecast table for Isla Negra provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Isla Negra can be found by selecting the local surf guide option on the grey menu. Our Isla Negra 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 Negra) 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 Negra 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.

Isla Negra is 19 km (12 miles) from the city of San Antonio. If you plan a holiday in Santiago, look for hotels and other accommodation in San Antonio. San Antonio has rooms for a wide range of budgets as well as car hire and transport links.

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