
Surf Forecasts:
Triangulo surf forecast from 18 Jul 2026:
- Best quality surf: Friday 24 Jul, 4AM (local time) - 5.5ft (1.7m), 10s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 10AM (local time) - 5ft (1.5m), 13s period, SW swell with 746 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 10PM (local time) - 3.5ft (1.1m), 12s 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 Friday (Jul 17) at 10PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.3m and 18s. Another secondary swell of 0.5m and 5s is also forecast. 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 1.5m 13s and forecast to arrive on Sunday (Jul 19) at 10AM. 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+) | 10PM (Fri 17th Jul) | 3.5ft (1.1m) 12s |
| Best Surf | 4AM (Fri 24th Jul) | 5.5ft (1.7m) 10s |
| Most Powerful | 10AM (Sun 19th Jul) | 5ft (1.5m) 13s |
Table - best surf conditions forecast for Triangulo over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down in feet and miles per hour.
Start of the run’s pretty quiet. The first surf you’d even think about is Friday morning, 17 July. Water temp’s 71°, and it’s about 9° warmer than it should be for this time – that’s crazy warm. Feels like a tropical soak out there.
Swell is around 4ft from the SSW, 12-second period. Wind is light, just 6 mph from the SSE and it’s cross-offshore – that’ll keep it clean. Energy’s at 559, which is moderate but solid for the size. The morning is the go. By afternoon the wind picks up and shifts cross-shore, and it’s done for.
Saturday and Sunday, 18-19 July, are marginal at best. Waves hold between 4ft and 5ft, wind stays light and cross-shore, but the quality just isn’t there. Reports say the tide’s messing with it or the shape’s off. Could paddle out, but don’t expect much. On Sunday, you get 5ft from the SW at 13 seconds, energy 776, but the wind is just cross-shore and clean – still no standout.
Monday morning 20 July gives you another clean lap: cross-offshore wind, 4ft SSW, 11 seconds, energy 466. Clean again, but still not the pick of the month. Then Tuesday and Wednesday fade down to around 3ft with cross-onshore breezes kicking in. Not worth rushing.
Now here’s where you need to pay attention. From 24 July onward, the swell period starts climbing into the late teens and even 20 seconds by 26 July. That’s deep ocean groundswell. The heights are small, around 3ft to 3ft, but that long period gives them way more push, and energy readings jump to 973 then 1025 on 26 July. Light, cross-shore winds that day too. Reef break, so the long period could actually shape up well.
But Monday 27 July – that’s the one. Waves around 4ft from the SW, 18-second period, combined energy at 1203 – the highest we see in the whole outlook. Light cross-shore wind in the morning. This is the session to plan around. Clean, consistent, with good energy from the deep ocean. Not overhead, but good surf.
The 28th and 29th stay solid: 4ft to 5ft from the SW, periods still long (15-16 seconds), energy over 1000. Wind on the 29th goes cross-onshore though, so early is key. Waves over 5ft start pushing out beginners, but should be okay for the average surfer. Nothing gets over 8ft, so expert only territory isn’t hit.
End of the month and into August, swell backs off to 3ft-3ft, energy between 400 and 600, and winds stay cross-shore. Nothing to cancel plans over.
Best bet: early Monday 27 July at Triangulo. 4ft, long period, light wind, and high energy. Don’t miss it.
- Rusty
Short Range ForecastMostly dry. Very mild (max 19°C on Fri morning, min 17°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Mon morning, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 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) | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SW 11 | SW 13 | SW 12 | SW 11 | SW 11 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SSW 7 | SW 11 | SSW 11 | SSW 11 |
Wave Graph | |||||||||||||||||||||
551 | 419 | 371 | 341 | 335 | 403 | 746 | 694 | 506 | 422 | 480 | 367 | 309 | 255 | 242 | 172 | 166 | 171 | 328 | 311 | 551 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | cross | cross-off | cross-off | cross-on | cross | cross-off | cross | cross | cross |
High Tide | 8:22PM0.60m | 8:58AM0.97m | 9:26PM0.61m | 9:39AM0.88m | 10:35PM0.63m | 10:20AM0.78m | 11:48PM0.65m | 11:01AM0.68m | 1:05AM0.68m | 11:46AM0.59m | 2:16AM0.72m | 12:41PM0.53m | 3:15AM0.75m | ||||||||
Low Tide | 2:57PM0.20m | 2:02AM0.13m | 3:43PM0.20m | 2:56AM0.24m | 4:29PM0.20m | 3:59AM0.34m | 5:15PM0.20m | 5:19AM0.42m | 6:01PM0.21m | 7:02AM0.46m | 6:50PM0.21m | 8:43AM0.45m | 7:39PM0.20m | ||||||||
6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 17 | 19 | 19 | 17 | 19 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | 17 | 19 | 18 | 18 | 19 | 19 | 17 |
Feels °C | 18 | 18 | 16 | 18 | 18 | 17 | 18 | 19 | 20 | 18 | 19 | 18 | 17 | 17 | 15 | 18 | 17 | 16 | 18 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SW 11 | SW 13 | SW 12 | SW 11 | SW 11 | SW 13 | SW 12 | SW 12 | SW 11 | S 6 | S 6 | S 7 | SSW 7 | S 8 | SSW 11 | SSW 11 |
551 | 419 | 371 | 341 | 335 | 403 | 746 | 694 | 506 | 422 | 480 | 367 | 309 | 255 | 71 | 86 | 94 | 171 | 168 | 311 | 551 | |
Swell 2 Height (m) Direction Period (s) | S 6 | SSW 18 | W 11 | SW 16 | SSW 15 | SSW 14 | S 4 | S 16 | SW 15 | SSW 13 | SSW 11 | SSW 10 | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 11 | S 8 | SW 21 |
1 | 34 | 2 | 67 | 148 | 140 | 4 | 5 | 8 | 35 | 46 | 62 | 98 | 95 | 242 | 172 | 166 | 82 | 328 | 157 | 467 | |
Swell 3 Height (m) Direction Period (s) | W 11 | W 11 | NW 11 | WSW 15 | WSW 15 | — | WSW 16 | S 16 | S 15 | W 22 | SSW 13 | SSW 12 | W 20 | W 20 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 24 | SW 23 | SW 15 |
2 | 2 | 5 | 21 | 21 | — | 26 | 20 | 17 | 9 | 35 | 50 | 32 | 30 | 100 | 90 | 90 | 107 | 273 | 266 | 35 | |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 5 | S 5 | S 5 | SSW 5 | — | — | SSW 4 | — | SSW 4 | S 4 | S 4 | S 5 | — | — | — | — | — | — | S 8 |
5 | 10 | 11 | 12 | 12 | 8 | — | — | 4 | — | 1 | 7 | 9 | 16 | — | — | — | — | — | — | 217 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 26 | 0 | 2 | 0 | 2 | 2 | 29 | 2 | 2 | 0 | 2 | 2 | 2 |
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.










