Surf Forecast Surf Report

Isla Negra surfForecast / Santiago / Chile

information circle12 Day Weather and Surf, issued 7 am Saturday 17 May 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
12.3° C
(Which is 2.3°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 Saturday (May 17) at 5PM. The primary swell is predicted to be 2.1m and 13s period with a secondary swell of 0.2m and 11s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Isla Negra in the next 12 days are 3.0m 16s and forecast to arrive on Thursday (May 22) at 2PM. 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 13s period and expected on Saturday (May 17) at 11PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sat 17th May)7ft (2.1m) 13s
Best Surf 8AM (Thu 22nd May)7.5ft (2.3m) 17s
Most Powerful 2PM (Thu 22nd May)10ft (3.0m) 16s

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

Updates in  hr  min  s Forecast update imminent
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
WSW
2.1
WSW
0.2
WNW
0.3
NW
0.3
NW
0.3
NW
0.2
WSW
0.4
WSW
1
WSW
1.5
WSW
1.5
WSW
1.5
WSW
1.4
WSW
1.3
WSW
1.6
WSW
3
WSW
3
WSW
3
WSW
2.3
WSW
0.9
WSW
0.1
NW
0.1
NW
0.3
NW
0.3
NW
0.2
WNW
0.1
NW
0.1
NW
0.1
NW
0.1
NW
1.5
WSW
1.3
WSW
0.4
WSW
1.7
WSW
2
WSW
2.1
WSW
1.9
WSW
Period(s) (?)131313131313242219181616151418171616152014131313131212121212111512131313
Wave
Graph
(?)Metric surfscale
Energy (?)734152817282727541817741399124411558187421615464848833637227459677262716665563641884835136315751189
Wind
(km/h)
25
N
15
NNE
10
S
10
S
5
SSW
10
ESE
10
E
10
SSW
5
S
10
SSW
5
SSW
10
S
15
S
25
SSW
15
S
20
SSW
15
SSW
10
SSE
15
SSW
15
SSW
5
SW
5
SSW
10
SSW
5
SE
15
SSE
15
SSW
10
S
10
SSW
15
SSW
10
SSE
15
S
25
SSW
20
S
15
SSW
10
SSW
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
offcross-
off
glasscross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
glassglasscross-
off
cross-
off
offcross-
off
offcross-
off
cross-
off
offcross-
off
cross-
off
offcross-
off
cross-
off
cross-
on
High Tide
/ height (m)
1:14PM
1.25
2:03AM
0.71
2:04PM
1.21
3:09AM
0.70
2:59PM
1.17
4:22AM
0.74
4:01PM
1.15
5:28AM
0.83
5:06PM
1.13
6:22AM
0.96
6:09PM
1.12
7:10AM
1.12
7:09PM
1.11
7:55AM
1.28
8:06PM
1.10
8:39AM
1.43
9:01PM
1.07
9:25AM
1.54
9:55PM
1.03
10:12AM
1.61
10:47PM
0.99
11:00AM
1.63
11:40PM
0.94
Low Tide
/ height (m)
8:26PM
0.30
7:01AM
0.42
9:25PM
0.30
7:59AM
0.47
10:23PM
0.28
9:19AM
0.49
11:16PM
0.24
10:48AM
0.48
12:02AM
0.19
12:06PM
0.41
12:45AM
0.15
1:14PM
0.30
1:27AM
0.11
2:13PM
0.19
2:09AM
0.09
3:09PM
0.09
2:51AM
0.08
4:03PM
0.01
3:35AM
0.09
4:56PM
-0.02
4:20AM
0.11
5:50PM
-0.01
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Sunrise7:31--7:33--7:33--7:33--7:35--7:35--7:35--7:37--7:37--7:37--7:39--7:39--
Sunset-5:52--5:52--5:52--5:51--5:51--5:50--5:50--5:49--5:49--5:47--5:47--5:47-
cloudmod rainrain showerspart cloudcloudlight rainlight raincloudcloudpart cloudpart cloudpart cloudclearpart cloudpart cloudcloudcloudpart cloudclearpart cloudpart cloudcloudclearpart cloudclearclearclearclearcloudcloudclearclearclearclearclearclear
Rain (mm)
-65--42-----------------------------
Temp. °C161514151515171818181817161715141413141412141413161714141413151816161713
Feels °C (?)111112131314161718171717141212111010111010131111121311121110111312121311

Short Range Forecast: Moderate rain (total 17mm), heaviest on Sat afternoon. Very mild (max 18°C on Mon afternoon, min 13°C on Sat afternoon). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Tue morning, min 13°C on Thu morning). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Very mild (max 17°C on Sun afternoon, min 12°C on Fri morning). Wind will be generally light.

Long Range Forecast: Mostly dry. Very mild (max 18°C on Tue afternoon, min 12°C on Mon morning). Wind will be generally light.

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
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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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