
Surf Forecasts:
Infernillo surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 5AM (local time) - 2.5ft (0.7m), 20s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 6AM (local time) - 5ft (1.6m), 16s period, SW swell with 1,179 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 11PM (local time) - 6ft (1.9m), 8s period with SW swell.
Best Forecast Surf Conditions for Infernillo this week:
The surf forecast for Infernillo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 04) at 11PM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 1.1m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Infernillo in the next 16 days are 1.6m 16s and forecast to arrive on Sunday (Sep 06) at 6AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 4th Sep) | 6ft (1.9m) 8s |
| Best Surf | 5AM (Sat 5th Sep) | 2.5ft (0.7m) 20s |
| Most Powerful | 6AM (Sun 6th Sep) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Infernillo over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what Infernillo’s got cooking for us over the next couple of weeks. Gotta be straight with you – it’s a bit of a mixed bag, and we’re looking at a real stop-start kind of run.
The overall pattern shows some solid energy peeking through, but winds and conditions are going to keep us on our toes, especially through the first week. The water is sitting at 57.2°, which is a touch warmer than we’d normally expect for this time of year – nothing crazy, but worth noting when you’re suiting up.
We kick things off on Friday the 4th with a 4.3 ft swell out of the WSW, but a 12 mph southerly is blowing cross-shore, putting a chop on it. The energy is moderate at best (810), and honestly, the vibe is marginal. This one’s more of a look-and-see than a paddlin’ mission.
Saturday the 5th cleans up a little. The swell drops to 3.0 ft early, but that’s a beautiful 18-second SW groundswell – long period goodness that’ll wrap into the point nicely. The wind is a light 9 mph cross-shore in the morning, which is about as good as it’s gonna get for the early session. The energy is ramping up into strong territory (1064). Still, it’s not a standout day, just a step in the right direction.
Sunday the 6th pushes the swell up to 4.9 ft from the SW, still a decent 15-second period. The wind goes light cross-onshore in the morning – not ideal, but not a dealbreaker. The energy jumps into strong territory (1074), so there’s push. But that cross-onshore angle is keeping it from being truly clean. It’s a surfable swell, but it’s not the one to set the alarm for.
Monday the 7th holds the 4.9 ft SW swell, but the wind stays cross-onshore, and by the afternoon a moderate 12 mph southerly is just chopping it to bits. The energy drops a bit (874). It’s a working day for the swell, but the quality is taking a hit.
Tuesday the 8th is a step down. Swell drops to 3.6 ft, period shortens, and the wind is moderate onshore all day. The energy is fading (578), and the surf is looking pretty average to poor. Not your day.
Wednesday the 9th through Thursday the 10th is more of the same – small, weak, and choppy. The energy drops to the low hundreds (365 on Thursday) and the swell direction is a muddy WSW. There’s a real lull here. If you’re not on it, you’re missing nothing.
Then things get interesting again on Friday the 11th. A 6.6 ft swell from the WSW rolls in – solid size, but the period is a punchy 12 seconds. The wind is a moderate 12 mph cross-onshore in the morning, and it gets even stronger to 19 mph in the afternoon. The energy is big again (1103), but the quality is a write-off due to the wind. This is getting into the territory where the cross-shore wind makes it more interesting for kites than paddle surfing. The swell is there, but it’s a battle.
Saturday the 12th and Sunday the 13th keep that 5.9 ft to 6.6 ft SW swell going, but the wind is still onshore and lumpy. The energy sits strong to moderate, but the conditions are just not cooperating for a quality surf. For Sunday the 13th, if you’re a beginner, that 5.9 ft is getting a bit too much to handle.
Monday the 14th brings a 4.9 ft WSW swell with a better 14-second period, and the energy bounces back up (1114), but again – cross-onshore wind and a choppy face. It’s frustrating because the swell is good, but the wind is ruining the party.
On Tuesday the 15th, the swell drops a bit to 5.2 ft, but the period shortens to 9 seconds, and the wind is still cross-shore and messy. The energy fades (676). It’s a workable wave for a strong intermediate, but don’t expect perfection.
From Wednesday the 16th onward, things taper off badly. Swell shrinks to 3.0 ft, periods drop below 10 seconds, and the wind remains cross-onshore. The energy plummets to the low hundreds (198 by Thursday the 17th). This is a real gap of poor conditions. We’re looking at a run of several days – Wednesday the 16th through Saturday the 19th – where there is no recommendation worth mentioning. It’s a blank stretch. The last record on Saturday the 19th shows a 5.6 ft onshore mess, which is just a kiting day. Not for the surfboard.
So, what’s the one or two true standouts? Honestly, the best on offer is Saturday
Short Range ForecastMostly dry. Very mild (max 15°C on Fri afternoon, min 6°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Tue afternoon, min 7°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | WSW 13 | WSW 13 | SW 8 | SW 18 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | WSW 12 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 9 |
Wave Graph | |||||||||||||||||||||
528 | 512 | 423 | 540 | 769 | 897 | 924 | 886 | 813 | 874 | 862 | 618 | 424 | 335 | 260 | 463 | 412 | 336 | 342 | 304 | 433 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-on | cross-off | cross-on | on | glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-off |
High Tide | 3:40PM0.76m | 4:30AM1.20m | 5:34PM0.72m | 5:59AM1.25m | 7:09PM0.77m | 7:14AM1.34m | 8:10PM0.87m | 8:11AM1.44m | 8:56PM0.98m | 9:00AM1.50m | 9:36PM1.09m | 9:43AM1.52m | 10:13PM1.19m | ||||||||
Low Tide | 10:11AM0.40m | 9:16PM0.41m | 11:58AM0.36m | 10:53PM0.43m | 1:19PM0.27m | 1:25AM0.38m | 2:15PM0.16m | 1:34AM0.28m | 2:59PM0.06m | 2:30AM0.18m | 3:37PM-0.00m | 3:19AM0.09m | 4:12PM-0.03m | 4:04AM0.04m | |||||||
7:01 | — | — | 7:01 | — | — | 7:58 | — | — | 7:58 | — | — | 7:56 | — | — | 7:54 | — | — | 7:54 | — | — | |
— | 6:31 | — | — | 6:31 | — | — | 7:32 | — | — | 7:34 | — | — | 7:34 | — | — | 7:35 | — | — | 7:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 15 | 11 | 12 | 13 | 11 | 13 | 13 | 10 | 11 | 11 | 9 | 12 | 13 | 10 | 13 | 13 | 11 | 13 | 14 | 13 |
Feels °C | 6 | 10 | 7 | 8 | 8 | 9 | 11 | 10 | 8 | 8 | 7 | 4 | 9 | 8 | 6 | 10 | 8 | 8 | 11 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 8 | WSW 13 | SW 8 | SW 8 | SW 9 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | WSW 12 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 9 |
282 | 512 | 423 | 277 | 359 | 897 | 924 | 886 | 813 | 874 | 862 | 618 | 424 | 335 | 260 | 463 | 412 | 336 | 342 | 304 | 433 | |
Swell 2 Height (m) Direction Period (s) | WSW 13 | SW 23 | WSW 12 | WSW 12 | SW 18 | SW 8 | SW 8 | SW 8 | — | — | — | WSW 20 | SW 5 | WSW 16 | WSW 16 | SW 5 | NW 13 | NW 12 | W 6 | NW 13 | SW 12 |
528 | 21 | 320 | 247 | 769 | 214 | 132 | 90 | — | — | — | 37 | 34 | 105 | 166 | 19 | 6 | 6 | 17 | 6 | 212 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 21 | SW 18 | SW 12 | SW 11 | SW 22 | — | — | — | — | W 9 | WSW 18 | W 14 | W 13 | NW 13 | — | NW 12 | NW 12 | — | SW 22 |
— | — | 271 | 540 | 175 | 130 | 18 | — | — | — | — | 2 | 120 | 4 | 3 | 7 | — | 6 | 6 | — | 18 | |
Wind waves Height (m) Direction Period (s) | — | SW 8 | — | — | — | — | — | — | — | — | WSW 5 | SW 5 | — | SW 5 | SW 6 | — | SW 4 | SW 5 | — | WNW 3 | — |
— | 373 | — | — | — | — | — | — | — | — | 9 | 33 | — | 52 | 72 | — | 15 | 25 | — | 10 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 180 | 341 | 1 | 1 | 180 | 0 | 11 | 180 | 0 | 114 | 157 | 0 | 1 | 157 | 1 | 1 | 114 | 1 | 91 | 109 | 0 |
Best forecast wave conditions in Santiago | |||||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||||
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Information about the Infernillo Surf forecast
The above surf forecast table for Infernillo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Infernillo can be found by selecting the local surf guide option on the grey menu. Our Infernillo 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 (Infernillo) 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 Infernillo 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.
Infernillo is 67 km (42 miles) from Santa Cruz. If you plan a holiday in Santiago, look for hotels and other accommodation in Santa Cruz. Santa Cruz has rooms for a wide range of budgets as well as car hire and transport links.










