Trestles (Lowers) Surf Break

Lat Long: 33.38° N 117.58° W

Trestles (Lowers) Surf Forecast and Surf Report

Issued: 4 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Lowers) sea temperature is
22.8° C
3.1° 

Trestles (Lowers) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Trestles (Lowers) surf forecast from 17 Aug 2026:

  • Best quality surf: Monday 24 Aug, 5AM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Tuesday 18 Aug, 8AM (local time) - 3ft (0.9m), 16s period, SSW swell with 402 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 2AM (local time) - 2.5ft (0.8m), 14s period with SSW swell.

Best Forecast Surf Conditions for Trestles (Lowers) this week:

The surf forecast for Trestles (Lowers) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 2AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.7m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Trestles (Lowers) in the next 16 days are 0.9m 16s and forecast to arrive on Tuesday (Aug 18) at 8AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 18th Aug)2.5ft (0.8m) 14s
Best Surf 5AM (Mon 24th Aug)2.5ft (0.8m) 14s
Most Powerful 8AM (Tue 18th Aug)3ft (0.9m) 16s

Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s on the table for Trestles (Lowers) over the next couple of weeks.

Right off the bat, I’ve gotta be straight with you – the next week or so is looking pretty grim. The first real surfable day doesn’t show up until Wednesday, August 26th. Before that, we’re dealing with a long stretch of small, weak, and choppy conditions. From Monday the 17th right through to Tuesday the 25th, the swell is tiny – mostly 2 ft to 3 ft – and the wind is mostly cross-onshore, leaving the surface a mess. The wave energy is weak to moderate (between 149 and 436 units), and honestly, there’s nothing worth paddling out for. It’s a real dry spell.

Now, the light at the end of the tunnel. Wednesday, August 26th, is our first real highlight. The wind goes glassy in the morning – a light, offshore breeze out of the west at 3 mph. There’s a 2 ft SSW groundswell rolling in with a long 16-second period. The water temperature is about normal for this time of year, so no surprises there. The energy is moderate (284 units), but with that period and clean conditions, it’ll be a quiet, fun little session. The crowds are always a factor at Lowers, so expect company, but the quality should be there for the advanced crew.

Friday, August 28th, is another standout. The afternoon brings a clean, cross-offshore breeze from the north at 6 mph, tidying up a 2 ft SW swell with a 16-second period. The energy is moderate (370 units), but that wind direction will make for some of the best-conditioned waves of the whole period. It’s a sneaky good window.

Looking further out to the first week of September, there’s a pulse of energy building. By Saturday, August 29th, the swell nudges up to 3 ft from the SSW, with a 16-second period and strong wave energy (651 units). The morning wind is light from the west, but it’s cross-onshore, so it won’t be pristine. Still, for a long-range call, it’s something to keep an eye on. The trend continues into Sunday and Monday with similar size and direction, but the wind stays messy. The best of that late window might be the morning of Sunday, August 30th, with a light breeze and a solid 3 ft SSW swell.

Bottom line: the first week is a washout. The real action is on August 26th, 28th, and maybe the 29th-30th. Keep your expectations low for the early run, but the end of the month has a few clean, glassy sessions that’ll make it worth the wait.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed morning, min 21°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Sat morning, min 23°C on Thu night). 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
Rating
(10 max)
0
0
2
1
0
2
1
1
2
1
0
2
0
0
2
0
0
2
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)
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
16
0.7
SSW
17
0.8
SSW
15
0.9
SSW
16
0.9
SSW
16
0.8
SSW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
13
0.6
SSW
13
0.6
SSW
13
0.5
SSW
13
0.5
SSW
15
0.7
SSW
14
0.5
SW
19
0.5
SW
18
0.8
SSW
14
Wave Graph
Metric surfscale
Energy kJ
330
264
257
232
243
272
377
387
249
236
236
226
156
137
135
92
123
218
177
155
269
Wind (km/h)
15
W
15
WNW
0
S
10
SW
10
W
5
W
10
WSW
10
WSW
5
SE
10
SW
10
SSW
5
S
10
SW
10
SSW
5
SW
10
WSW
10
W
0
SW
10
WSW
15
W
0
W
Wind State
cross-on
cross-on
glassy
on
cross-on
glassy
on
on
glassy
on
on
glassy
on
on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
glassy
High Tide
12:47PM1.51m
1:15AM1.05m
1:28PM1.45m
2:46AM0.87m
2:22PM1.40m
3:41PM1.37m
8:16AM0.98m
5:05PM1.40m
8:13AM1.05m
6:07PM1.49m
8:24AM1.11m
6:54PM1.59m
Low Tide
7:30PM0.43m
6:40AM0.56m
8:50PM0.46m
6:55AM0.73m
10:43PM0.43m
00:16AM0.32m
9:51AM0.97m
1:08AM0.21m
11:54AM0.93m
1:45AM0.11m
12:49PM0.84m
2:15AM0.03m
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:15
6:16
6:16
6:16
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:34
7:32
7:31
7:30
7:29
7:28
7:27
 mm
Temp °C
24
24
22
25
25
22
26
26
24
26
26
23
26
26
24
27
27
25
27
27
25
Feels °C
24
24
24
26
25
23
27
26
26
27
27
25
27
27
26
27
27
27
28
27
27
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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 Trestles (Lowers) Surf forecast

The above surf forecast table for Trestles (Lowers) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trestles (Lowers) can be found by selecting the local surf guide option on the grey menu. Our Trestles (Lowers) 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 (Trestles (Lowers)) 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 Trestles (Lowers) 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.

Trestles (Lowers) is 6 km (4 miles) from San Clemente. If you plan a vacation in Orange County, look for hotels and other accommodation in San Clemente. San Clemente has rooms for a wide range of budgets as well as car hire and transport links.

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