Surf Forecasts:
Infernillo surf forecast from 17 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 8AM (local time) - 5ft (1.5m), 12s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 5AM (local time) - 6.5ft (2.0m), 16s period, WSW swell with 1,931 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 8PM (local time) - 3.5ft (1.1m), 12s period with WSW 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 Monday (Aug 17) at 8PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 1.4m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Infernillo in the next 16 days are 2.0m 16s and forecast to arrive on Wednesday (Aug 19) at 5AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 17th Aug) | 3.5ft (1.1m) 12s |
| Best Surf | 8AM (Tue 18th Aug) | 5ft (1.5m) 12s |
| Most Powerful | 5AM (Wed 19th Aug) | 6.5ft (2.0m) 16s |
Table - best surf conditions forecast for Infernillo over the next 16 days.
The Lowdown
G'day, I'm Rusty, and let me tell you about the waves coming our way here at Infernillo. This reef and point setup is exposed to the swell, and the water temperature is sitting at 56°F, which is pretty much spot on for this time of year—no surprises there.
Right from Monday the 17th, we've got a bit of a mixed bag. Monday morning kicks off clean with a 3ft swell from the WSW at 13 seconds, and a light cross-off breeze from the SSE at 3 mph. The energy's moderate at 570, but honestly, it's not the standout. Things get a little messy by afternoon with a cross-shore breeze and a so-so score.
Tuesday the 18th sees the swell bumping up to 5ft from the SW, period at 12 seconds, and the energy jumps to 1360, but the cross-shore winds keep things from getting really clean. Wednesday the 19th is where it starts to get interesting. The swell holds at 7ft from the WSW, and by Wednesday afternoon, we get a glassy window with a light WNW breeze at 3 mph. The energy is pumping at 1718, and the conditions are excellent for experienced surfers. This is a true standout—clean, powerful, and lined up. Just note, at 7ft, it's getting a bit big for beginners.
We've got a bit of a lull from Thursday the 20th through the weekend, with swell dropping and winds turning more cross or cross-onshore. The energy stays moderate to strong, but the quality is marginal. Saturday the 22nd and Sunday the 23rd are pretty poor, with small swell and choppy conditions.
The next real highlight pops up on Sunday the 30th. Morning brings a glassy 8ft swell from the WSW at 12 seconds, and the energy is strong at 1448. Again, this is excellent for experienced surfers only—it's big, but the conditions are clean with light winds. The period's moderate, so the waves will have some push.
Looking further out, Monday the 1st of September fades quickly with dropping swell and onshore winds. Overall, the best bet is Wednesday afternoon the 19th and Sunday morning the 30th—both offer glassy, clean conditions with solid swell. Don't expect much consistency in between; there are several days of marginal surf.
Stay stoked, and I'll catch you in the water.
Rusty
Short Range ForecastMostly dry. Very mild (max 14°C on Tue afternoon, min 7°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Fri afternoon, min 11°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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 | WSW 12 | SW 16 | SW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | W 11 | WSW 12 | WSW 11 | WSW 10 | WSW 10 | SW 11 | WSW 13 | WSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 362 | 335 | 347 | 573 | 881 | 895 | 1690 | 1629 | 1384 | 1116 | 852 | 593 | 673 | 238 | 692 | 249 | 136 | 98 | 140 | 312 | 511 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross | cross-on | glassy | glassy | cross-on | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross-on | cross | cross-on | cross | cross |
High Tide | 1:25PM1.16m | 2:00AM1.18m | 2:06PM0.99m | 2:47AM1.14m | 2:55PM0.85m | 3:45AM1.09m | 4:06PM0.74m | 5:01AM1.07m | 6:01PM0.69m | 6:24AM1.09m | 7:35PM0.72m | 7:30AM1.16m | 8:26PM0.77m | ||||||||
Low Tide | 7:38PM0.19m | 8:15AM0.33m | 8:12PM0.30m | 9:21AM0.43m | 8:52PM0.40m | 10:49AM0.48m | 9:48PM0.48m | 12:32PM0.47m | 11:13PM0.52m | 1:47PM0.40m | 00:36AM0.49m | 2:35PM0.33m | 1:36AM0.43m | ||||||||
 |  |  | | | | | | | | |  | | | |  | |  | | | | |
 | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | 6:19 | — | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 12 | 11 | 13 | 14 | 11 | 13 | 13 | 11 | 14 | 15 | 13 | 16 | 18 | 15 | 16 | 14 | 14 | 13 | 13 | 12 |
Feels °C | 9 | 8 | 10 | 11 | 10 | 9 | 12 | 11 | 10 | 12 | 11 | 10 | 13 | 15 | 13 | 14 | 12 | 13 | 12 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 9 | SW 12 | SW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | W 11 | WSW 12 | WSW 11 | SW 8 | SW 8 | SW 11 | WSW 13 | WSW 12 |
| kJ | 181 | 262 | 300 | 524 | 881 | 895 | 1690 | 1629 | 1384 | 1116 | 852 | 593 | 673 | 238 | 692 | 249 | 120 | 95 | 140 | 312 | 511 |
Swell 2 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 12 | SW 16 | — | SW 16 | SW 8 | SW 7 | — | — | SW 21 | SW 7 | WSW 15 | SW 10 | SW 10 | SW 7 | WSW 10 | WSW 10 | W 9 | W 9 | SW 10 |
| kJ | 362 | 335 | 347 | 573 | — | 786 | 260 | 89 | — | — | 17 | 124 | 42 | 61 | 33 | 91 | 136 | 98 | 41 | 57 | 84 |
Swell 3 Height (m) Direction Period (s) | NW 10 | SW 19 | SW 18 | SW 9 | — | SW 7 | — | — | — | — | — | SW 20 | — | WSW 13 | — | SW 16 | SW 16 | SW 16 | W 15 | SSW 14 | SW 13 |
| kJ | 4 | 15 | 154 | 126 | — | 147 | — | — | — | — | — | 15 | — | 102 | — | 10 | 10 | 9 | 109 | 21 | 44 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 11 | — | — | — | — | — | SW 6 | — | — | SW 7 | — | — | — | — | — | SW 11 | — |
| kJ | — | — | — | — | 471 | — | — | — | — | — | 60 | — | — | 169 | — | — | — | — | — | 115 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 0 | 1 | 316 | 0 | 0 | 6 | 0 | 1 | 242 | 0 | 1 | 170 | 0 | 1 | 167 | 1 | 1 | 1 | 1 |
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.
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