Isla Negra Surf Forecast

/ Santiago (25 surf breaks) /

Chile (102 surf breaks)

Surf Forecasts:

Isla Negra surfForecast / Santiago / Chile

48hr Weather and Surf, issued 8 am Saturday 18 Oct 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 12.6° C
(Which is 1.3°C colder than average for this time of year)

How big are the waves at Isla Negra today?

The current surf forecast for Isla Negra at 1PM is: 0.2m 12s primary swell from a West-northwest direction (forecast issued at 08:00am October 18). An open ocean swell of 1.6m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-04) & Date	Wave Height	Wave Period
Morning (18 Oct)	0.5ft (0.1m)	15s
Afternoon (18 Oct)	0.5ft (0.2m)	12s
Evening (18 Oct)	0.5ft (0.2m)	12s

Table - waves today at Isla Negra. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Saturday 18						Sunday 19								Monday 20								Tue 21
	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	WNW	NW	NW	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	NW	WNW	WNW	WNW	NW	WNW	WNW	WNW	WNW	WNW	W	WSW	WSW
Period(s) (?)	15	15	15	12	12	12	12	13	13	13	13	13	13	13	13	13	21	21	21	21	21	21	11	10
Wave Graph (?)
kJ (?)	21	8	8	14	14	14	15	17	27	27	27	27	17	17	17	7	45	90	45	45	45	36	79	69
Wind (km/h)	SSE	S	SW	WSW	W	W	SW	SSW	SSW	WSW	W	WSW	SW	S	S	S	S	S	SW	SW	SSW	SSW	SSW	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	cross- off	cross- off	cross	cross- on	glass	cross- off	cross- off	cross- off	cross	glass	cross	cross- off	cross- off	off	off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)			9:20AM 1.23				9:55PM 1.15				9:58AM 1.21				10:24PM 1.23				10:32AM 1.18				10:51PM 1.29
Low Tide / height (m)	3:09AM 0.26				3:41PM 0.11				3:51AM 0.20				4:09PM 0.11				4:30AM 0.16				4:35PM 0.12

	Saturday 18						Sunday 19								Monday 20								Tue 21
Sunrise	-	7:01	-	-	-	-	-	-	-	7:01	-	-	-	-	-	-	-	7:00	-	-	-	-	-	-
Sunset	-	-	-	-	8:00	-	-	-	-	-	-	-	8:01	-	-	-	-	-	-	-	8:02	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	14	15	17	15	13	12	12	11	11	13	14	13	13	11	10	10	10	12	15	14	14	13	12	12
Feels °C (?)	12	13	14	13	12	11	10	9	10	12	13	11	11	10	8	7	7	9	10	10	10	9	9	10

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Santiago

Wind Update Continuing clean conditions at Isla Negra (calm at Chocalán wx 52 km from Isla Negra). 0.2m 14s groundswell from the WNW with a 0.1m 13s groundswell, also from the WNW. 2 swells combining to make bigger set waves.
1 hour 37 minutes ago Isla Negra

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