Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Isla Negra surfForecast / Santiago / Chile

information circle12 Day Weather and Surf, issued 2 pm Thursday 20 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
13.5° C
 (Which is 1.5°C colder than average for this time of year)

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 Friday (Nov 21) at 12AM. The primary swell is predicted to be 0.5m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Isla Negra in the next 12 days are 0.7m 15s and forecast to arrive on Sunday (Nov 23) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 10s period and expected on Saturday (Nov 22) at 9AM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 21st Nov)1.5ft (0.5m) 12s
Best Surf 9PM (Sun 23rd Nov)2.5ft (0.7m) 15s
Most Powerful 9PM (Sun 23rd Nov)2.5ft (0.7m) 15s

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 18°C on Fri morning, min 13°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Mon morning, min 13°C on Sun night). Wind will be generally light.

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
1
1
0
1
1
0
1
0
0
1
0
0
1
0
0
1
1
0
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
NW
0.5
W
0.9
WSW
0.4
NW
0.4
WNW
0.6
WNW
0.6
WNW
0.5
NW
0.6
NW
0.6
NW
0.6
NW
0.9
SW
0.6
NW
0.6
NW
0.6
NW
0.5
NW
0.6
NW
0.6
NW
0.4
NW
0.4
NW
0.6
NW
Period(s) (?)14127171616161615151415131313131312151514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)71719376103171171124136171169011314010883100985955169
Wind
(km/h)
15
SSW
10
S
5
WSW
15
W
5
SSW
5
WSW
15
WNW
5
NW
5
W
20
WNW
0
ESE
5
NW
15
WNW
5
NW
10
NNW
20
WNW
0
SE
0
W
15
WNW
10
ESE
15
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		glasscross-
on		glassglasscross-
on		glasscrosscross-
on		glasscross-
on		cross-
on		glassoncross-
on		glassglasscross-
on		cross-
off		cross-
off
High Tide
/ height (m)
11:26PM
1.39
11:57AM
0.90
12:01AM
1.38
12:34PM
0.86
12:37AM
1.35
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
Low Tide
/ height (m)
4:54PM
0.25
6:09AM
0.15
5:25PM
0.27
6:48AM
0.17
5:57PM
0.30
7:30AM
0.21
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
Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise--6:31--6:31--6:31--6:31--6:31--6:31--6:30
Sunset8:30--8:31--8:32--8:34--8:35--8:36--8:37--
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
Rain (mm)
---------------------
Temp. °C151418181517171516161417161416171416171415
Feels °C (?)131316161515151514131415141413151414151311
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

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

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

Read more

Read more

Discover more articles and updates in the Greenroom.

submit an eyeball surf report

Quick surf report for Isla Negra:

join our community of surf reporters

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 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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest