
Surf Forecasts:
Algarrobo surf forecast from 6 Aug 2026:
- Best quality surf: Saturday 8 Aug, 8AM (local time) - 8ft (2.5m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 5PM (local time) - 8ft (2.5m), 15s period, SW swell with 3,185 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 11PM (local time) - 4ft (1.2m), 11s period with SW swell.
Best Forecast Surf Conditions for Algarrobo this week:
The surf forecast for Algarrobo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 07) at 11PM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.7m and 15s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Algarrobo in the next 16 days are 2.5m 15s and forecast to arrive on Sunday (Aug 09) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 7th Aug) | 4ft (1.2m) 11s |
| Best Surf | 8AM (Sat 8th Aug) | 8ft (2.5m) 14s |
| Most Powerful | 5PM (Sun 9th Aug) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Algarrobo over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s cooking for Algarrobo.
Right off the bat, we’ve got a tricky run ahead. The water’s sitting at about 57°, which is pretty standard for this time of year – nothing wild going on there. The first few days are a write-off. Thursday and Friday (the 6th and 7th of August) are messy: cross to cross-onshore winds in the 12-15 mph range are just chopping everything up, and the wave comment says it all – poor conditions. The swell is there, around 5ft to 7ft, but the wind’s killing it.
We do get a glimmer on Saturday morning the 8th. There’s a solid 10ft groundswell from the SW with a long 14-second period, and the combined energy is pumping at 3097 (strong to very strong). The wind is a gentle cross-shore from the south at 9 mph, which is workable. But the forecast flags it as marginal, possibly due to tide. That size is pushing into expert territory. If you’re experienced and can pick your moment, it’s the biggest and most powerful we’ll see, but don’t expect perfection.
Sunday the 9th through Monday the 10th is still on the messy side. Swell hangs around 7ft to 8ft, but that cross-on wind is a persistent buzzkill. The combined energy stays high (up to 3187 on Sunday afternoon), but the conditions are described as poor or marginal. Not a good look for a clean session.
After that, we hit a real flat spot. From Tuesday the 11th all the way through to Saturday the 15th, the swell drops way down – between 1ft and 4ft – and the wind is almost always cross-on. The energy numbers fall off a cliff, dipping as low as 151 (weak). There’s a day on Thursday the 13th with a bit of offshore wind (SW, 3 mph) and a 4ft swell from the WSW at a very long 16 seconds, but the score is low and it’s labelled marginal. It might be glassy and clean, but the size is tiny. A longboarder might find a nugget, but that’s it.
Things start to look slightly better from Sunday the 16th onwards. That afternoon, we get a 5ft swell from the WSW with a 14-second period, and the wind swings onshore from the SW at 9 mph. It’s a step in the right direction, and the combined energy is back to 904 (moderate). Monday the 17th keeps that trend: 6ft to 6ft, light cross-on winds, and energy in the 1200-1300 range. Still not clean, but more size and power.
The real standout of the whole period, if you’re willing to wait, is Tuesday the 18th of August. The morning session sees a 7ft SW groundswell with a 14-second period, the wind is a light cross-shore from the NNW at 6 mph, and the combined energy is a solid 1712 (strong). The wave comment is marginal, but that wind and swell combo could line up nicely at this reef/pier setup. It’s the best balance of size, power, and potential for clean conditions we get.
After that, Wednesday the 19th through Friday the 21st fades out. Winds get stronger again (19 mph on Wednesday afternoon – that’s fresh and lumpy), and the swell drops back to 4ft to 7ft with poor or marginal ratings.
So, here’s the bottom line: if you’re after a true standout, pin your hopes on Saturday morning the 8th for the biggest, most powerful swell (10ft, SW, 14s), but it’s for experts only with that size and a bit of cross-chop. For the best overall chance of a decent wave with cleaner conditions, Tuesday morning the 18th is your call – 7ft, SW, long period, and light cross-shore wind. That’s the one that could really deliver.
Stay patient, and keep an eye on the wind shifts.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Thu afternoon, min 7°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 11°C on Sun afternoon, min 7°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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 10 | SW 9 | SW 13 | SW 8 | SW 12 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 13 | WSW 18 | WSW 17 |
Wave Graph | |||||||||||||||||||||
913 | 525 | 370 | 248 | 195 | 623 | 3025 | 3038 | 2511 | 1723 | 3185 | 2322 | 1468 | 1083 | 695 | 461 | 283 | 118 | 69 | 266 | 569 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross-off | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 3:35PM0.84m | 4:39AM1.16m | 5:05PM0.76m | 5:58AM1.23m | 6:44PM0.75m | 7:11AM1.33m | 8:00PM0.80m | 8:13AM1.45m | 8:57PM0.88m | 9:06AM1.54m | 9:44PM0.96m | 9:53AM1.60m | 10:28PM1.04m | ||||||||
Low Tide | 10:02AM0.43m | 9:39PM0.34m | 11:42AM0.41m | 10:52PM0.36m | 1:11PM0.32m | 00:13AM0.34m | 2:16PM0.21m | 1:24AM0.27m | 3:09PM0.10m | 2:24AM0.18m | 3:54PM0.01m | 3:17AM0.10m | 4:35PM-0.05m | 4:06AM0.05m | |||||||
7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | |
— | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 13 | 12 | 10 | 11 | 10 | 11 | 12 | 10 | 9 | 11 | 10 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 12 | 11 |
Feels °C | 7 | 8 | 8 | 5 | 5 | 6 | 6 | 6 | 4 | 4 | 5 | 5 | 6 | 7 | 7 | 6 | 6 | 6 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 13 | SW 13 | SW 8 | SW 12 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 5 | SW 6 | WSW 18 | WSW 17 |
913 | 458 | 370 | 248 | 195 | 623 | 3025 | 3038 | 2511 | 1723 | 3185 | 2322 | 1468 | 1083 | 695 | 461 | 283 | 35 | 31 | 266 | 569 | |
Swell 2 Height (m) Direction Period (s) | WSW 13 | SW 13 | W 12 | SW 12 | SW 16 | WSW 11 | SW 21 | SW 21 | SW 18 | SW 16 | W 9 | W 9 | SW 18 | W 8 | W 8 | WSW 15 | WSW 16 | SW 11 | SW 10 | SW 5 | SW 9 |
479 | 336 | 3 | 205 | 129 | 200 | 72 | 111 | 330 | 988 | 2 | 2 | 13 | 1 | 1 | 87 | 95 | 112 | 51 | 23 | 22 | |
Swell 3 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | SW 17 | W 11 | SW 24 | — | — | — | — | — | — | — | — | — | W 8 | — | WSW 14 | WSW 13 | WSW 14 | WSW 12 |
6 | 5 | 5 | 77 | 2 | 22 | — | — | — | — | — | — | — | — | — | 1 | — | 118 | 69 | 107 | 28 | |
Wind waves Height (m) Direction Period (s) | — | SW 9 | SW 8 | — | SW 7 | — | — | — | — | — | — | — | — | — | — | — | SW 5 | — | — | — | SW 5 |
— | 525 | 322 | — | 179 | — | — | — | — | — | — | — | — | — | — | — | 54 | — | — | — | 20 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 370 | 20 | 42 | 443 | 0 | 14 | 127 | 20 | 127 | 308 | 14 | 14 | 14 | 14 | 14 | 329 | 20 | 14 | 14 | 14 |
Best forecast wave conditions in Santiago | |||||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||||
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Information about the Algarrobo Surf forecast
The above surf forecast table for Algarrobo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Algarrobo can be found by selecting the local surf guide option on the grey menu. Our Algarrobo 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 (Algarrobo) 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 Algarrobo 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.
Algarrobo is 21 km (13 miles) from the city of Valparaiso. If you plan a holiday in Santiago, look for hotels and other accommodation in Valparaiso. Valparaiso has rooms for a wide range of budgets as well as car hire and transport links.











