Triangulo Surf Break

Lat Long: 12.16° S 77.03° W

Triangulo Surf Forecast and Surf Report

Issued: 6 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Triangulo sea temperature is
20.7°C
4.1° 

Triangulo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Triangulo surf forecast from 26 Aug 2026:

  • Best quality surf: Friday 28 Aug, 7AM (local time) - 5ft (1.6m), 17s period, SW swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 7PM (local time) - 7ft (2.1m), 15s period, SW swell with 1,833 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 4AM (local time) - 2ft (0.6m), 11s period with S 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 26) at 4AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.4m and 13s. Another secondary swell of 0.7m and 6s 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 2.1m 15s and forecast to arrive on Friday (Aug 28) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (-05) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 26th Aug)2ft (0.6m) 11s
Best Surf 7AM (Fri 28th Aug)5ft (1.6m) 17s
Most Powerful 7PM (Fri 28th Aug)7ft (2.1m) 15s

Table - best surf conditions forecast for Triangulo over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's break down this stretch. It's a bit of a slow starter, we got a lot of small, junky stuff early on, and we gotta wait a while for anything with real push.

Right off the bat, from the 25th through the 27th, it's pretty poor. The swell's small, the period's short, and the wind is cross-shore, making everything a bit of a mess. Water temp is at 69°, which is about 7° warmer than it should be for this time of year—that's a huge anomaly, water's feeling like a bath. But it won't matter because the surf is just not there, with combined energy in the weak to low-moderate range. You're not missing anything.

The first real pulse of energy hits on Friday the 28th. The swell jumps to 6ft-7ft from the SW, and we finally get some proper period in it—15 to 16 seconds, real groundswell. The combined energy is up around 1638-1834, which is solid. The wind is still cross-shore, so the surface won't be glassy, but this is the first time the size is there. That size is getting up there, so the beginners should probably sit this one out.

The weekend stays rideable but not epic. Saturday the 29th keeps the SW swell around 6ft with a 14-second period. The energy dips a bit into the 1138-1311 zone. Wind is still cross. It's surfable, but a bit lumpy. By Sunday the 30th, the swell backs off to 5ft and the period drops to 12-13 seconds. The energy is falling back, and the wind picks up a bit on the afternoon. It starts to get messy.

We hit a lull mid-week from the 31st through the 2nd of September. The swell drops way down to 2ft-4ft. Some of it is cross-on, which never helps. The energy is all weak. It's not flat, but it's small and junky.

Now, keep an eye on September 3rd and 4th. The long-range models are showing a return to more promising surf, and this is where the standout window starts to appear. The 3rd and 4th look the best. We're looking at 4ft-5ft of SW swell with a period of 14-17 seconds. The energy is building back into the 905-1211 range. It's not huge, but the period is nice. The wind remains a cross-shore breeze, which is a bit of a letdown, but the swell quality should be better. For this second week, think of it as promising but with lower confidence.

My pick for the best surf of the whole window is Friday the 4th. Swell at 5ft from the SW, at 14-15 seconds, is the biggest of that first good run. It's not perfect due to cross wind, but it's got the most size and energy. For a reef like Triangulo, which is inconsistent and sheltered, a longer-period SW swell is what you want, even with the wind. Just remember, this spot is inconsistent, so it won't be a non-stop show.

After that, things fade a bit. The energy drops but the period stays long. There's some pulse around the 8th and 9th, with 4ft-4ft of SW swell at 16-19 seconds, and energy back over 1100. But again, that cross-shore wind is the constant factor. So, if you're keen, the 28th and 29th, and then the 3rd and 4th of September are your best bets. The 4th is the pick of the batch.

Remember, those calls for next week are a bit of a gamble, but that's the nature of the game. We'll see what happens.

Rusty, out.

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue afternoon, min 18°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Fri afternoon, min 18°C on Fri night). Wind will be generally light.

Tue
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
1
0
1
2
2
2
2
2
2
1
0
0
1
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
15
0.4
SW
18
0.7
SSW
11
0.7
SSW
12
0.7
SSW
10
0.5
SW
13
0.5
SW
20
1
SW
18
1.8
SW
16
2
SW
15
1.9
SW
14
1.8
SW
14
1.8
SW
14
1.6
SW
13
1.5
SW
13
1.3
SW
12
1.1
SW
12
1
SW
12
1.1
SW
12
1
SW
12
Wave Graph
Metric surfscale
Energy kJ
54
83
130
125
110
82
206
609
1611
1808
1463
1280
1119
905
710
528
355
268
349
286
Wind (km/h)
20
S
15
SSE
10
SSW
15
S
15
SSE
10
SSW
15
SSW
10
SSE
10
S
15
S
15
SSE
15
S
15
S
15
SSE
15
S
20
S
20
SSE
10
SW
15
S
15
SSE
Wind State
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
High Tide
4:14PM0.51m
5:15AM0.88m
4:49PM0.55m
5:40AM0.91m
5:24PM0.60m
6:04AM0.91m
5:59PM0.64m
6:28AM0.90m
6:37PM0.68m
6:53AM0.87m
7:16PM0.71m
7:18AM0.82m
8:00PM0.73m
Low Tide
10:10PM0.14m
11:48AM0.29m
10:44PM0.13m
12:10PM0.27m
11:17PM0.14m
12:32PM0.24m
11:51PM0.16m
12:55PM0.22m
00:27AM0.19m
1:19PM0.19m
1:05AM0.24m
1:45PM0.17m
1:47AM0.30m
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clear
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:15
6:13
6:13
6:13
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:04
6:04
6:04
6:04
6:04
6:04
6:04
 mm
Temp °C
20
19
20
20
19
20
20
19
20
20
19
20
20
18
20
20
18
20
20
18
Feels °C
19
18
20
19
18
21
19
18
20
19
18
19
20
17
19
18
16
19
19
17
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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