Trestles (Uppers) Surf Break

Lat Long: 33.38° N 117.59° W

Trestles (Uppers) Surf Forecast and Surf Report

Issued: 4 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Uppers) sea temperature is
22.6°C
2.8° 

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 27 Aug 2026:

  • Best quality surf: Thursday 3 Sep, 8AM (local time) - 6ft (1.8m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 3 Sep, 8AM (local time) - 6ft (1.8m), 14s period, SSW swell with 1,144 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 11PM (local time) - 3.5ft (1.0m), 10s period with S 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 27) at 11PM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.6m 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 1.8m 14s and forecast to arrive on Thursday (Sep 03) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 13s period and expected on Monday (Aug 31) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 27th Aug)3.5ft (1.0m) 10s
Best Surf 8AM (Thu 3rd Sep)6ft (1.8m) 14s
Most Powerful 8AM (Thu 3rd Sep)6ft (1.8m) 14s

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


The Lowdown

Alright folks, Rusty here. Let's see what’s shaking for Trestles (Uppers) in the weeks ahead.

Right off the bat, it's a tough outlook. We’ve got a real long stretch of so-so conditions. There's swell in the water, but the winds are mostly cross-onshore and the tide never seems to line up. You’ll need to be patient because the good stuff is a long way off.

The water temp is a balmy 73°, which is a solid 5° warmer than average for this time of year. That’s some seriously warm water for late August – nothing like the usual autumn cooldown.

We start on Thursday, the 27th of August, with a small 4ft S swell at 12 seconds. The combined wave energy is moderate (661), but with a cross-onshore breeze from the SSW, it's going to be a bit bumpy and messy. It’s just not clean enough to get the blood pumping. That same tune plays all the way through the end of August and into the first week of September – small, onshore junk.

Honestly, there's a whole lot of ‘meh’ here. The swell is coming from the S and SSW, but Uppers really wants it from the W to really fire. Everything is just slightly off.

There is one window, but it’s a long way out. On Thursday the 3rd of September, things pick up. The morning has a 4ft SSW swell with a 14-second period, and the energy climbs to 1247 – a solid moderate push. The afternoon gets even bigger at 6ft from the SSW, with a 12-second period and energy at 1297. The wind is light and cross-onshore, so it won't be perfect, but it's the best shot you’ll get. 6ft at Uppers is a serious wave, so this is advanced territory. Crowds at Uppers are *always* a given, so be ready to fight for a wave.

After that pulse, it fades out again. There's a small clean window on Monday, September 7th, with an afternoon offshore wind from the NE at 16 mph blowing over a tiny 3ft SSW swell. It’ll be glassy, but you’ll need a longboard. The rest of that second week looks small and lumpy.

Don't hold your breath for the last few days; it stays small and the wind stays wrong. That Thursday the 3rd is your only real target, and even then, it’s not a classic.

Stay patient, and keep an eye on the 3rd. It’s the best we’ve got.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Thu morning, min 23°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Warm (max 25°C on Sun morning, min 20°C on Tue night). Wind will be generally light.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
3
1
2
2
1
1
2
1
1
2
1
1
2
1
0
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)
1.2
S
12
1.1
S
11
0.6
SSW
18
0.8
SSW
16
0.6
SSW
19
1.2
SSW
17
1
SSW
17
1.2
SSW
16
1.2
SSW
16
1.1
SSW
15
1
SSW
14
0.9
SSW
14
1.3
S
13
1.3
S
12
1.1
S
12
1.2
S
11
1.2
S
11
1.2
S
12
1.3
SSW
12
1.1
SSW
12
1.7
SSW
13
Wave Graph
Metric surfscale
Energy kJ
387
272
204
347
289
867
587
733
706
537
400
321
581
496
316
344
338
411
503
343
1026
Wind (km/h)
10
SSW
10
SSW
5
SSE
10
WSW
10
W
5
SSE
10
SW
15
W
10
SSE
15
S
10
WSW
5
SSE
10
SW
15
W
5
NW
10
W
15
WNW
10
NW
5
SSW
15
W
5
WNW
Wind State
cross-on
on
glassy
cross-on
cross-on
cross
on
cross-on
cross
cross-on
on
glassy
on
cross-on
glassy
cross-on
cross-on
cross-off
on
cross-on
cross
High Tide
9:38AM1.37m
9:09PM1.77m
10:01AM1.45m
9:43PM1.71m
10:26AM1.52m
10:18PM1.61m
10:52AM1.58m
10:57PM1.45m
11:20AM1.62m
11:42PM1.26m
11:53AM1.63m
00:41AM1.06m
12:34PM1.62m
2:20AM0.88m
Low Tide
3:09PM0.45m
3:55AM-0.04m
3:45PM0.38m
4:19AM0.02m
4:23PM0.33m
4:43AM0.13m
5:04PM0.29m
5:06AM0.26m
5:52PM0.28m
5:29AM0.41m
6:51PM0.30m
5:52AM0.58m
8:11PM0.32m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:22
6:22
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:22
7:21
7:19
7:17
7:16
7:15
7:14
 mm
2
Temp °C
28
28
26
28
28
26
27
27
24
25
25
22
24
24
22
25
25
22
23
24
23
Feels °C
31
30
30
30
29
29
28
27
27
25
24
24
24
23
22
25
23
21
23
23
23
  • 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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