Surf Forecasts:
Isla Negra surf forecast from 28 Sep 2026:
- Best quality surf: Saturday 3 Oct, 12AM (local time) - 7ft (2.1m), 14s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 3 Oct, 3AM (local time) - 7ft (2.2m), 14s period, WSW swell with 1,835 kJ wave energy.
- Next surfable swell (1★+): Monday 28 Sep, 9PM (local time) - 4ft (1.2m), 10s period with WSW swell.
Best Forecast Surf Conditions for Isla Negra this week:
The surf forecast for Isla Negra over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 28) at 9PM. The primary swell is predicted to be 1.2m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Isla Negra in the next 16 days are 2.2m 14s and forecast to arrive on Saturday (Oct 03) at 3AM. 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 12s period and expected on Sunday (Oct 04) at 6PM.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 28th Sep) | 4ft (1.2m) 10s |
| Best Surf | 12AM (Sat 3rd Oct) | 7ft (2.1m) 14s |
| Most Powerful | 3AM (Sat 3rd Oct) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Isla Negra over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 16°C on Wed afternoon, min 10°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Thu morning, min 10°C on Sat night). Winds increasing (calm on Fri morning, fresh winds from the SSW by Sat afternoon). | ||||||||||||||||||||
Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 9 | W 8 | W 8 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 13 | WSW 13 | NW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 194 | 240 | 193 | 151 | 147 | 24 | 21 | 21 | 226 | 524 | 430 | 415 | 401 | 337 | 1752 | 1538 | 1354 | 1288 | 1700 | 1748 | 23 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | glassy | cross-off | off | off | cross-off | cross-off | glassy | cross | cross-off | off | cross-off | off | off | cross-off | off |
High Tide | 12:03PM1.21m | 00:23AM1.37m | 12:42PM1.12m | 1:01AM1.39m | 1:24PM1.01m | 1:46AM1.37m | 2:14PM0.89m | 2:40AM1.32m | 3:19PM0.78m | 3:48AM1.26m | 4:53PM0.71m | 5:14AM1.22m | 6:40PM0.74m | ||||||||
Low Tide | 6:04PM0.09m | 6:43AM0.09m | 6:35PM0.13m | 7:31AM0.14m | 7:10PM0.20m | 8:27AM0.21m | 7:51PM0.27m | 9:39AM0.28m | 8:45PM0.36m | 11:11AM0.31m | 10:05PM0.43m | 12:44PM0.27m | 11:50PM0.44m | ||||||||
 | |  |  |  |  | | | | | |  | | | | | | | | | | |
 | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — |
 | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:49 | — | — | 7:49 | — | — | 7:50 | — | — | 7:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 12 | 13 | 13 | 12 | 14 | 16 | 14 | 19 | 19 | 14 | 16 | 16 | 13 | 14 | 14 | 12 | 12 | 13 | 12 |
Feels °C | 11 | 11 | 9 | 9 | 9 | 9 | 11 | 11 | 10 | 17 | 16 | 11 | 14 | 14 | 11 | 10 | 9 | 7 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | W 10 | SW 12 | WSW 10 | WSW 9 | SW 12 | W 9 | W 8 | SW 11 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 13 | WSW 13 | SW 12 |
| kJ | 194 | 25 | 193 | 151 | 68 | 24 | 21 | 56 | 226 | 524 | 430 | 415 | 401 | 337 | 1752 | 1538 | 1354 | 1288 | 1700 | 1748 | 1243 |
Swell 2 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 12 | SW 12 | NW 14 | SW 11 | SW 11 | W 8 | W 8 | SW 11 | SW 15 | SW 13 | NW 15 | NW 14 | NW 13 | NW 13 | NW 13 | SW 14 | NW 12 | NW 12 | SW 18 |
| kJ | 28 | 27 | 52 | 69 | 7 | 30 | 41 | 21 | 11 | 32 | 107 | 178 | 8 | 8 | 7 | 28 | 27 | 273 | 23 | 23 | 86 |
Swell 3 Height (m) Direction Period (s) | SW 14 | NW 10 | SSW 10 | SW 15 | SW 18 | SW 14 | SW 5 | SW 13 | SSW 13 | SW 16 | SW 11 | NW 15 | NW 11 | SW 19 | — | W 21 | W 21 | NW 13 | WNW 19 | WSW 20 | NW 12 |
| kJ | 29 | 4 | 9 | 9 | 13 | 29 | 6 | 28 | 17 | 41 | 32 | 8 | 5 | 14 | — | 9 | 9 | 25 | 37 | 38 | 23 |
Wind waves Height (m) Direction Period (s) | — | WSW 10 | — | — | WSW 9 | SW 6 | — | SW 3 | SW 5 | — | SW 3 | — | — | — | — | — | SW 3 | — | — | — | — |
| kJ | — | 240 | — | — | 147 | 44 | — | 3 | 23 | — | 2 | — | — | — | — | — | 9 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 495 | 0 | 0 | 61 | 61 | 1 | 1479 | 0 | 0 | 425 | 0 | 0 | 108 | 0 | 0 | 1253 | 0 | 0 | 425 | 6 |
Best forecast wave conditions in Santiago | |||||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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 16 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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