Trestles (Uppers) Surf Break

Lat Long: 33.38° N 117.59° W

Trestles (Uppers) Surf Forecast and Surf Report

Issued: 10 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Uppers) sea temperature is
22.7°C
2.9° 

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


Trestles (Uppers) surf forecast from 23 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 5AM (local time) - 4ft (1.2m), 18s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 29 Aug, 5AM (local time) - 4ft (1.2m), 18s period, SSW swell with 877 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 11PM (local time) - 2ft (0.6m), 18s period with SW swell.

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

The surf forecast for Trestles (Uppers) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 11PM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.7m and 14s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Trestles (Uppers) in the next 16 days are 1.2m 18s and forecast to arrive on Saturday (Aug 29) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 12s period and expected on Tuesday (Aug 25) at 8PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 23rd Aug)2ft (0.6m) 18s
Best Surf 5AM (Sat 29th Aug)4ft (1.2m) 18s
Most Powerful 5AM (Sat 29th Aug)4ft (1.2m) 18s

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


The Lowdown

Alright folks, Rusty here. Let’s break down what’s on the menu for Trestles (Uppers) over the next couple of weeks.

Right out of the gate, it’s a slow start. This Sunday morning (August 23rd) there’s barely a ripple at 0.4m with a weak, long-period swell from the SW (265 combined energy), and the wind is blowing all wrong. The water’s sitting at 73°, which is almost 5° warmer than usual – feels more like a bath than the Pacific.

We’ve got a few days of tiny, wind-affected junk through Monday and Tuesday. Not worth talking about.

The First Real Pulse: Wednesday Aug 26 – Thursday Aug 27
Wednesday morning brings a pulse to 1.3m from the South (710 combined energy). Wind is still cross-on, but the period is a decent 12 seconds, so there’s some push. Wednesday afternoon is the slightly better window: 1.4m, S swell, with a little less wind. It’s still only marginal, but it’s the first sign of life. Thursday holds similar 1.3m S swell. Uppers prefers more west in the swell, but the energy is there.

The Standout Window: Sat Aug 29 – Sun Aug 30
This is your best bet in the near future, but it’s still a little way off. Saturday morning (Aug 29) has 1.1m of groundswell from the SSW with a 17-second period (813 combined energy). Wind is light cross-on from the W. That long period means quality waves, but it’s better for a point. Saturday afternoon bumps to 1.2m (880 energy) with a bit more breeze. Sunday morning (Aug 30) holds at 1.1m with a 15-second period (635 energy). Expect crowds *always* here, but this is the most consistent quality stretch of the first week.

The Quiet Period: Aug 31 – Sept 2
Small, weak, and messy. Nothing to get excited about.

The Distant Standout: Thurs Sept 3 – Fri Sept 4
Looking into the second week, this is the one that could be special. Thursday morning (Sept 3) shows 0.9m of swell with a massive 20-second period (794 combined energy). That’s a very long-period groundswell. Wind is light from the SW. Friday (Sept 4) keeps the energy building, with 1.2m and an 18-second period (983 energy) in the morning, and the afternoon actually skyrockets to 1441 combined energy. That’s some serious juice. Winds stay light and cross-on. This is the quality standout if the forecast holds up.

Final Call
For the first week, point your truck at Sat Aug 29 and Sun Aug 30 for the most reliable combo of size and clean-ish conditions. For the true quality hunter, keep the whole second week open, but Thurs Sept 3 and Fri Sept 4 are the ones to circle on the calendar for that incredible long-period groundswell and massive energy. Water’s warm, crowds are a given.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Tue afternoon, min 24°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

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

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
0
2
1
2
2
1
1
3
2
2
3
2
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
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
0.9
S
13
1.3
S
12
1.4
S
12
1.4
S
12
1.3
S
11
1.3
S
11
1
S
11
0.8
SSW
17
0.6
SSW
19
1.2
SSW
17
1.1
SSW
17
1.2
SSW
16
1.2
SSW
16
Wave Graph
Metric surfscale
Energy kJ
127
155
213
197
179
270
216
208
281
464
520
538
401
379
220
351
289
867
692
733
706
Wind (km/h)
10
WSW
15
W
5
NW
10
WSW
10
W
5
SSE
10
WSW
15
W
5
S
15
S
10
SSW
10
SSE
10
SSW
10
SSW
0
SW
10
W
10
W
5
S
10
W
15
WNW
5
S
Wind State
cross-on
cross-on
glassy
cross-on
cross-on
glassy
on
cross-on
glassy
cross-on
on
cross
on
cross-on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
glassy
High Tide
8:24AM1.11m
6:54PM1.59m
8:38AM1.17m
7:31PM1.68m
8:56AM1.23m
8:05PM1.75m
9:16AM1.30m
8:37PM1.78m
9:38AM1.37m
9:09PM1.77m
10:01AM1.45m
9:43PM1.71m
10:26AM1.52m
10:18PM1.61m
Low Tide
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
3:09PM0.45m
3:55AM-0.04m
3:45PM0.38m
4:19AM0.02m
4:23PM0.33m
4:43AM0.13m
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:18
6:20
6:20
6:20
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:27
7:25
7:23
7:22
7:22
7:21
7:19
 mm
Temp °C
27
28
25
27
28
25
28
29
27
27
27
24
26
26
26
29
29
26
29
29
27
Feels °C
29
29
27
28
28
27
29
29
28
28
28
25
27
27
27
30
29
28
29
29
29
  • Map Icons:
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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 (Uppers) Surf forecast

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