Trestles (Uppers) Surf Break

Lat Long: 33.38° N 117.59° W

Trestles (Uppers) Surf Forecast and Surf Report

Issued: 10 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Uppers) sea temperature is
23.9° C
4.1° 

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 13 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
  • Next surfable swell (1★+): Thursday 13 Aug, 5AM (local time) - 2ft (0.6m), 16s 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 Thursday (Aug 13) at 5AM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.5m and 11s. 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 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 13th Aug)2ft (0.6m) 16s
Best Surf 2AM (Sat 15th Aug)4ft (1.2m) 17s
Most Powerful 2AM (Sat 15th Aug)4ft (1.2m) 17s

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


The Lowdown

Alright, this is Rusty. Let’s have a look at what’s on the cards for Trestles (Uppers).

Right now, and for the foreseeable future, we’re looking at a pretty quiet stretch. The swell is hanging in there but it’s on the small side – most of the time we’re seeing waves around 1 ft to 4 ft, and the energy’s weak. The combined energy numbers are low, mostly in the 128 to 678 range (moderate energy on the higher end). The thing is, the wind is a real letdown. Nearly every session has some kind of cross-onshore or onshore breeze, and that’s making things messy. The period is decent – mostly 14 to 18 seconds, so there’s some groundswell character, but the wind’s just not cooperating.

The water temperature is about average for this time of year.

Let’s walk through the days chronologically. Thursday the 13th of August starts off with some clouds, a light breeze from the SW at 6 mph, and a 2 ft swell out of the Southwest with a 16-second period. The combined energy is 344 (weak). It’s marginal surf, and the tide could be tricky. Thursday afternoon gets a bit bigger at 3 ft, but the wind goes cross-onshore, and that’s when it tips into poor conditions.

Friday the 14th of August has a clear sky, but the wind is still onshore or cross-onshore. The swell is 2 ft to 3 ft, period around 18 seconds, with combined energy in the 550-650 range (moderate). Still, the wind’s messing it up – just marginal surf at best.

Saturday the 15th and Sunday the 16th of August are the same story: small swell, 3 ft to 4 ft, with a 15-16 second period, and a persistent cross-onshore breeze. The energy is moderate, around 420 to 680, but the quality drops to poor. You’re getting light wind ripples and chop. Not the clean lines you’d want.

From Monday the 17th all the way through to Wednesday the 26th of August, the pattern stays stubborn. Swell hovers between 1 ft and 3 ft. The period drops a bit to 13 seconds in the middle, then picks back up to 16-19 seconds by the 24th. But the wind is either onshore, cross-onshore, or on – and the surf quality remains poor to marginal. There’s no standout window. The combined energy is mostly in the 128 to 457 range (weak to low-moderate).

The best of a pretty quiet bunch would be Friday the 14th of August morning – 2 ft of 18-second SSW groundswell, combined energy of 551 (moderate). The wind is onshore, but at only 6 mph, it might clean up a little for a few dedicated surfers. But honestly, it’s still marginal.

For the rest of the 16-day window, from the 28th of August onward, it’s more of the same: small, weak, and onshore.

This is one of those stretches where the conditions just don't want to line up. The swell’s there in size, but the wind is a killer. For anyone thinking of paddling out, it’s going to be a fight for a few fun ones. Keep an eye out – the forecasts might shift, but as it stands, it’s a tough run.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sat afternoon, min 19°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Tue morning, min 20°C on Sat night). Wind will be generally light.

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
0
2
1
1
3
1
1
2
1
0
1
0
0
2
1
0
1
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
SW
16
0.7
SW
16
0.9
SW
16
0.8
SW
15
0.7
SSW
18
0.8
SSW
18
1.2
SSW
17
0.9
SSW
16
1.1
SSW
16
1.2
SSW
16
1
SSW
16
0.9
SSW
15
0.9
SSW
14
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
16
0.7
SSW
17
0.8
SSW
15
Wave Graph
Metric surfscale
Energy kJ
261
255
353
280
299
360
807
417
627
666
499
372
367
330
264
261
229
243
246
Wind (km/h)
5
SSW
10
SW
10
WSW
5
W
10
WSW
15
W
5
NW
10
W
15
WSW
5
W
10
WSW
15
W
5
WNW
10
WSW
15
W
5
WNW
10
SSW
10
SSW
10
SSE
Wind State
glassy
on
on
glassy
on
cross-on
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
on
on
cross
High Tide
9:22PM2.03m
10:28AM1.47m
10:06PM1.92m
11:02AM1.53m
10:48PM1.74m
11:37AM1.55m
11:31PM1.52m
12:11PM1.55m
00:18AM1.28m
12:47PM1.51m
1:15AM1.05m
1:28PM1.45m
2:46AM0.87m
Low Tide
4:19AM-0.29m
4:04PM0.34m
4:52AM-0.17m
4:50PM0.32m
5:23AM-0.01m
5:38PM0.33m
5:51AM0.17m
6:30PM0.37m
6:17AM0.37m
7:30PM0.43m
6:40AM0.56m
8:50PM0.46m
part cloud
part cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:37
7:36
7:35
7:34
7:32
 mm
Temp °C
20
22
22
20
22
22
19
22
23
21
23
24
22
25
25
24
26
26
23
Feels °C
21
23
22
21
22
22
20
22
23
22
23
24
23
25
24
26
27
27
25
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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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