
Surf Forecasts:
Triangulo surf forecast from 11 Aug 2026:
- Best quality surf: Friday 14 Aug, 4AM (local time) - 4.5ft (1.3m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 4PM (local time) - 5ft (1.6m), 14s period, SSW swell with 1,002 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 10AM (local time) - 5ft (1.5m), 13s period with SSW swell.
Best Forecast Surf Conditions for Triangulo this week:
The surf forecast for Triangulo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 10AM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 0.1m and 23s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Triangulo in the next 16 days are 1.6m 14s and forecast to arrive on Tuesday (Aug 11) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (-05) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Wed 12th Aug) | 5ft (1.5m) 13s |
| Best Surf | 4AM (Fri 14th Aug) | 4.5ft (1.3m) 16s |
| Most Powerful | 4PM (Tue 11th Aug) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Triangulo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's talk about what's cooking at Triangulo over the next couple of weeks.
We're looking at a drawn-out swell window with a few windows that will get the blood pumping, but there's a lot of waiting in between. The water is sitting at about 71°F right now, which is over 5°F warmer than usual for this time of year – that's a very unusual anomaly, so you'll be comfy in a spring suit or even a shorty.
The first real chance of something decent kicks off on Wednesday morning, the 12th of August. It's not the biggest swell, coming in at 5ft from the SSW with a 13-second period, but the wind is a light cross-offshore breeze, which will keep the reef clean. The combined energy is moderate (713). It's a decent little window, but the tide might be a factor, so pick your moment.
The real standout, however, looks like Sunday the 16th of August. We’ve got a jump in swell size, with the afternoon seeing 6ft from the SSW. The wind is a fresh cross-offshore at 19 mph, which will groom the waves nicely. The combined energy is strong (1068). This sets up a promising run into Monday the 17th. The Monday morning session sees the swell peak at 8ft from the south, with a short period of 9 seconds. The wave energy is massive (2475), but this is solidly in the expert-only zone. The wind is a moderate cross-offshore, keeping it clean. The short period means it’ll be a bit more sectiony and less powerful than a groundswell, but the size and clean conditions will be a sight to see. It's worth noting that Triangulo is a reef, and with that size and the swells coming from the south and SSW, the optimum direction is SW, so the exposure is a bit sheltered. That means it could hold size better than a beach break, but the long-period groundswells we saw earlier in the week are gone; this is a shorter-period wind swell, so expect more energy but less refracted lines.
After the 17th, the swell backs off. Tuesday the 18th is still a reasonable 7ft, but the wind turns cross, and the quality drops. From Wednesday the 19th onward, we're looking at a long stretch of poor conditions. The swell drops to 5ft or less, and the wind is mostly cross or light cross-onshore, making for a messy surface. The combined energy falls to weak levels, and the forecasts are not suggesting anything worth paddling out for. This run of poor surf stretches all the way through to the end of the forecast on the 26th of August. There are some tiny bumps in the second week, but nothing that will get you out of bed.
So, to sum it up: your best bet is the Sunday/Monday window (16th-17th of August). The Sunday afternoon is a solid pick for stronger surfers, and Monday morning is for the experts only. The Wednesday morning before that is a good, clean option for the smaller swell crew. After that, it's a quiet spell. Triangulo is an inconsistent spot, so when it does fire, it’s worth the wait.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Tue morning, min 18°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Fri morning, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SW 19 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 13 | SSW 8 | SW 16 | S 8 | S 8 |
Wave Graph | |||||||||||||||||||||
576 | 1002 | 746 | 692 | 519 | 425 | 488 | 769 | 765 | 886 | 842 | 746 | 659 | 632 | 488 | 404 | 380 | 507 | 522 | 439 | 783 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off |
High Tide | 4:29PM0.58m | 5:39AM1.06m | 5:25PM0.62m | 6:21AM1.06m | 6:17PM0.66m | 7:00AM1.03m | 7:08PM0.69m | 7:37AM0.97m | 8:00PM0.71m | 8:13AM0.88m | 8:53PM0.71m | 8:46AM0.78m | 9:50PM0.70m | ||||||||
Low Tide | 11:32AM0.25m | 10:34PM-0.00m | 12:13PM0.21m | 11:23PM0.00m | 12:52PM0.18m | 00:10AM0.04m | 1:30PM0.17m | 00:57AM0.11m | 2:06PM0.16m | 1:45AM0.19m | 2:42PM0.17m | 2:36AM0.28m | 3:18PM0.19m | 3:34AM0.37m | |||||||
6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 20 | 20 | 19 | 20 | 19 | 19 | 20 | 20 | 18 | 19 | 19 | 18 | 19 | 18 | 17 | 18 | 18 | 17 |
Feels °C | 21 | 21 | 19 | 19 | 20 | 19 | 19 | 18 | 18 | 19 | 19 | 17 | 18 | 17 | 17 | 19 | 15 | 13 | 16 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | S 11 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 13 | SW 15 | SSW 8 | SW 14 | S 8 |
418 | 1002 | 746 | 692 | 519 | 425 | 319 | 769 | 765 | 886 | 842 | 746 | 659 | 632 | 488 | 404 | 380 | 485 | 522 | 361 | 566 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | — | SW 18 | SW 23 | SW 21 | SW 19 | SW 19 | S 11 | S 11 | S 10 | — | — | S 9 | S 9 | S 9 | SW 11 | SW 16 | — | SW 16 | — | SW 14 |
576 | — | 13 | 21 | 67 | 236 | 488 | 297 | 286 | 208 | — | — | 37 | 24 | 14 | 123 | 260 | — | 462 | — | 350 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 18 | — | SW 16 | — | W 8 | — | — | — | — | — | — | W 13 | — | — | SW 17 | — | — | — | — |
— | — | 12 | — | 10 | — | 1 | — | — | — | — | — | — | 3 | — | — | 186 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 10 | S 9 | S 9 | S 6 | S 6 | S 7 | SSW 7 | SSW 8 | — | S 8 | S 8 |
— | — | — | — | — | — | — | — | — | — | 154 | 142 | 125 | 52 | 92 | 192 | 208 | 507 | — | 439 | 783 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 2 | 29 | 0 | 2 | 0 | 2 | 2 | 30 | 2 | 2 | 29 | 2 | 2 | 29 | 2 | 2 | 30 | 2 | 60 | 30 |
Best forecast wave conditions in Lima | |||||||||||||||||||||
Best forecast wave conditions in Peru | |||||||||||||||||||||
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Information about the Triangulo Surf forecast
The above surf forecast table for Triangulo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Triangulo can be found by selecting the local surf guide option on the grey menu. Our Triangulo 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 (Triangulo) 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 Triangulo 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.
Triangulo is 7 km (4 miles) from the city of Lima. If you plan a holiday in Lima, look for hotels and other accommodation in Lima. Lima has rooms for a wide range of budgets as well as car hire and transport links.











