Trestles (Lowers) Surf Break

Lat Long: 33.38° N 117.58° W

Trestles (Lowers) Surf Forecast and Surf Report

Issued: 10 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Lowers) sea temperature is
21.6° C
1.8° 

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 21 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 5AM (local time) - 3.5ft (1.0m), 14s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 27 Aug, 2AM (local time) - 5ft (1.6m), 14s period, SSW swell with 953 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 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 Friday (Aug 21) at 5AM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 0.4m 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 1.6m 14s and forecast to arrive on Thursday (Aug 27) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 21st Aug)2.5ft (0.7m) 14s
Best Surf 5AM (Wed 26th Aug)3.5ft (1.0m) 14s
Most Powerful 2AM (Thu 27th Aug)5ft (1.6m) 14s

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


The Lowdown

G'day, surfers. Rusty here with a look at the next couple of weeks around Trestles (Lowers). To be honest, it's a slow start, and we've got a bit of a wait on our hands before things get interesting. We're looking at a solid week of small, messy surf before a more promising window opens up later on.

The water temp is sitting at a nice 71°, which is a touch warmer than normal for this time of year, so you won't need a thick suit.

We kick off Thursday the 20th, and it's pretty grim. Swell is tiny, around 3ft from the SSW, with a cross-on breeze making it choppy. The wave energy is a weak 289, and honestly, it's not worth paddling out. This sort of poor quality continues right through the week. From Friday the 21st through to Tuesday the 26th, the swell stays under 3ft, with cross-onshore winds pretty much all session. There are a few sessions early on the 26th where the swell bumps up to 4ft, but it's still marred by that cross-on wind and a short, weak period. It's a real test of patience.

The first real glimmer of hope comes mid-week, on Wednesday the 27th of August. The swell pushes up to 5ft from the SSW, and the wind turns light and offshore from the SW. The wave energy jumps to a moderate 1037. The conditions are still a bit marginal with questionable tide, but it's the first time we've got a clean, offshore window and some size. For the advanced crew, this is the first session to circle. The following morning, Thursday the 28th, still has a bit of size at 5ft, but the wind goes back to a cross-on, which is a shame.

Then we get a bit of a run of marginal conditions, with small, cross-on swell through the end of August and into the start of September. There's a notable jump in period on the 29th, with a 3ft swell from the SSW, but a 17-second period. That's a long-period groundswell, and at a spot like Trestles, those long lines can be a bit finicky, often breaking too straight on the beach. It's something to be aware of.

The real standout, and the one that's got me a little excited, is looking like the first few days of September. Thursday the 3rd and Friday the 4th show a building swell. On the 3rd, we're looking at 2ft from the SSW, but with a very long period of 21 seconds! The wind is light and offshore, or very light cross-on. The wave energy is a moderate 623. The next day, the 4th, the swell builds to 4ft from the SSW, still with a long 18-second period, and the energy is cranking up to 928. The wind is light from the WNW, keeping things clean. For the advanced lads and ladies, this is the one to watch. The long period will be a dream for the point and reef sections at Trestles, giving those waves real shape and punch. Keep in mind, this is a long-range call, so it's promising but not locked in yet.

All in all, a frustrating week ahead, but the light at the end of the tunnel is a solid, clean swell window around the 3rd and 4th of September. Don't bother with the early stuff; save your energy for that.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Sun morning, min 22°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Tue afternoon, min 23°C on Tue night). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
1
0
0
2
1
0
1
0
0
2
0
1
2
1
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SSW
14
0.7
SSW
13
0.6
SSW
13
0.5
SSW
13
0.4
SW
18
0.6
SSW
15
0.7
SSW
14
0.5
SW
19
0.5
SW
18
0.6
SW
18
0.6
SW
18
0.6
SW
17
0.7
SW
17
0.6
SW
16
0.6
SW
16
1.2
S
14
1.4
S
13
1.3
S
13
1.6
SSW
14
Wave Graph
Metric surfscale
Energy kJ
175
156
137
98
92
167
218
177
155
213
197
179
273
216
171
526
683
563
953
Wind (km/h)
5
S
10
SW
10
WSW
0
SW
10
WSW
15
W
0
NW
10
WSW
15
WNW
5
NW
10
W
15
W
5
WNW
10
W
10
W
10
SSE
10
S
10
SSW
10
SE
Wind State
cross-on
on
cross-on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
cross
cross-on
cross-on
glassy
cross-on
cross-on
cross
cross-on
on
cross
High Tide
8:16AM0.98m
5:05PM1.40m
8:13AM1.05m
6:07PM1.49m
8:24AM1.11m
6:54PM1.59m
8:38AM1.17m
7:31PM1.68m
8:56AM1.23m
8:05PM1.75m
9:16AM1.30m
8:37PM1.78m
Low Tide
00:16AM0.32m
9:51AM0.97m
1:08AM0.21m
11:54AM0.93m
1:45AM0.11m
12:49PM0.84m
2:15AM0.03m
1:27PM0.73m
2:41AM-0.02m
2:01PM0.63m
3:06AM-0.06m
2:35PM0.54m
3:31AM-0.06m
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>
6:16
6:16
6:18
6:18
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:29
7:28
7:27
7:25
7:23
7:22
 mm
Temp °C
23
26
26
24
27
27
25
28
28
25
27
28
25
28
29
25
26
26
24
Feels °C
26
28
27
26
28
27
27
29
28
27
27
27
27
27
28
26
27
27
25
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  • 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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