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Surf Forecasts:

Isla Negra surfForecast / Santiago / Chile

information circle12 Day Weather and Surf, issued 8 am Sunday 23 Nov 2025 -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
14.1° C
 (Which is slightly cooler than normal)

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 Monday (Nov 24) at 12AM. The primary swell is predicted to be 0.6m and 14s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Isla Negra in the next 12 days are 0.7m 18s and forecast to arrive on Sunday (Nov 30) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Friday (Nov 28) at 6PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 24th Nov)2ft (0.6m) 14s
Best Surf 9AM (Wed 26th Nov)1.5ft (0.5m) 16s
Most Powerful 3PM (Sun 30th Nov)2.5ft (0.7m) 18s

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 17°C on Tue morning, min 12°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Wed afternoon, min 9°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the SW by Fri morning).

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
1
1
0
1
0
0
1
2
0
1
1
0
1
0
0
0
1
0
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.5
NW
0.4
NW
0.4
NW
0.6
NW
0.6
NW
0.5
NW
0.4
NW
0.4
NW
0.4
NW
0.4
NW
0.4
NW
0.4
NW
Period(s) (?)151514141313131313161515141414131317181920
Wave
Graph
(?)Metric surfscale
Energy kJ (?)17417116916414414010810610012259551691691006261757896125
Wind
(km/h)
5
WNW
15
WNW
0
N
5
W
15
WNW
0
NNE
5
NW
20
NW
0
NE
5
WNW
15
WNW
5
E
10
SSW
15
WSW
15
SSW
25
SSW
30
SW
20
S
15
S
30
SW
15
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		glassglasscross-
on		glassoncross-
on		glassglasscross-
on		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off
High Tide
/ height (m)
1:12PM
0.81
1:16AM
1.31
1:55PM
0.76
1:57AM
1.26
2:44PM
0.72
2:41AM
1.21
3:43PM
0.71
3:31AM
1.16
4:51PM
0.74
4:27AM
1.11
5:57PM
0.82
5:29AM
1.08
6:54PM
0.93
Low Tide
/ height (m)
6:30PM
0.33
8:15AM
0.25
7:04PM
0.37
9:05AM
0.28
7:43PM
0.42
9:58AM
0.30
8:34PM
0.47
10:52AM
0.30
9:45PM
0.51
11:43AM
0.27
11:13PM
0.52
12:30PM
0.24
12:38AM
0.47
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunrise6:31--6:31--6:31--6:31--6:30--6:30--6:30--
Sunset-8:34--8:35--8:36--8:37--8:37--8:37--8:38-
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C151513161614171714161714161615141412141513
Feels °C (?)131313141414151514141515141414776899
  • 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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Latest Updates

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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

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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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