Trestles (Uppers) Surf Break

Lat Long: 33.38° N 117.59° W

Trestles (Uppers) Surf Forecast and Surf Report

Issued: 4 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Uppers) sea temperature is
23.5°C
3.6° 

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 5 Sep 2026:

  • Best quality surf: Sunday 6 Sep, 5AM (local time) - 6ft (1.8m), 14s period, S swell with cross-offshore winds.
  • Most powerful swell: Sunday 6 Sep, 11AM (local time) - 6ft (1.9m), 14s period, S swell with 1,342 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 5AM (local time) - 6ft (1.8m), 14s 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 Sunday (Sep 06) at 5AM. The primary swell is predicted to be 1.8m and 14s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.5m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Trestles (Uppers) in the next 16 days are 1.9m 14s and forecast to arrive on Sunday (Sep 06) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 6th Sep)6ft (1.8m) 14s
Best Surf 5AM (Sun 6th Sep)6ft (1.8m) 14s
Most Powerful11AM (Sun 6th Sep)6ft (1.9m) 14s

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


The Lowdown

Alright, folks, Rusty here. Let’s have a look at what’s cooking for Trestles (Uppers).

We’ve got a bit of a slow start, but the good news is there’s a solid window of quality surf coming up, and it’s all focused on this one spot. The water is sitting at a toasty 74°F, which is a massive 7°F warmer than usual for this time of year. You’re not gonna need a wetsuit, that’s for sure.

The first couple of days are a write-off. Saturday the 5th is a mess with a light cross-onshore breeze and small, choppy conditions. Not worth paddling out. Sunday the 6th is where it starts to get interesting. The morning brings a clean 6ft swell from the S with a 14-second period, and a nice cross-offshore wind from the N at 9 mph. That’s prime for Trestles. The wave energy is pumping at 1421, so you’ll feel the push. This is the standout session for the whole forecast – Sunday morning is the call. The afternoon stays clean but the wind swings cross-shore, so morning is your window.

Monday the 7th and Tuesday the 8th are a write-off again with choppy, onshore winds and poor quality. The swell drops and the wind is all wrong. Just don’t bother.

Then, a real treat. Wednesday the 9th morning. It’s glassy. A 3 mph SW wind, almost nothing, and a 4ft SSW swell. The combined energy is 522, so it’s moderate, but the glassy conditions will make it feel like a million bucks. The swell period is a short 10 seconds, so it’s a bit of a windswell, but when it’s that clean, you don’t care. This is the second best option, but it’s a close second. The afternoon gets a bit of an onshore kick and a tiny 2ft swell with a very long 16-second period, which might be too straight for the beach break, but the point can handle it.

From Thursday the 10th onwards, the swell drops off a cliff. The rest of the 16-day window is a slow, sad decline. We’re talking 1ft to 3ft south swells with marginal or poor conditions. The wave energy dips to 157 or so by the 13th of September. There’s a glimmer of hope around the 20th of September with some 3ft SW swell and very long periods (17-18 seconds), but the wind is onshore or cross-on, and the energy is still weak. Not worth planning a trip around, but keep an eye on it. The long-range stuff is always a bit of a guess.

So, bottom line: Sunday morning the 6th is the absolute winner. Wednesday morning the 9th is a close second if you can get out for a glassy session. Everything else is a flat spell. This is a classic case of a short, sharp window of goodness, so don’t sleep on it.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun morning. Warm (max 27°C on Mon morning, min 22°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

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

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
3
4
3
3
2
1
3
1
0
2
3
2
3
1
1
2
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
S
14
1.5
S
13
1.2
SSW
16
1.9
S
14
1.8
S
13
1.4
SSW
14
1.8
SSW
13
1.7
SSW
13
1.3
SSW
12
1.6
SSW
13
1.5
SSW
13
1.2
SSW
11
1.1
SSW
10
0.7
SW
16
0.9
SW
17
0.9
SSW
17
1
SW
16
0.9
SSW
16
0.9
SW
16
0.9
SW
15
0.9
SW
15
Wave Graph
Metric surfscale
Energy kJ
627
806
673
1342
1155
711
1162
980
486
828
721
334
250
278
419
498
502
430
349
318
309
Wind (km/h)
10
W
15
W
10
NW
15
N
10
NW
15
NW
15
W
20
WNW
5
N
15
WNW
25
WNW
5
SSW
5
SW
10
SW
5
S
10
WSW
10
W
10
SE
15
S
10
S
10
S
Wind State
cross-on
cross-on
cross
cross-off
cross
cross
cross-on
cross-on
cross-off
cross-on
cross
glassy
glassy
on
glassy
cross-on
cross-on
cross
cross-on
cross-on
cross-on
High Tide
4:42PM1.62m
7:24AM1.14m
5:56PM1.74m
7:51AM1.26m
6:54PM1.85m
8:19AM1.38m
7:43PM1.91m
8:47AM1.49m
8:28PM1.91m
9:17AM1.59m
9:10PM1.83m
9:46AM1.66m
9:50PM1.71m
Low Tide
10:07AM0.94m
00:38AM-0.01m
11:51AM0.84m
1:25AM-0.13m
12:54PM0.67m
2:04AM-0.19m
1:43PM0.49m
2:39AM-0.20m
2:28PM0.34m
3:11AM-0.15m
3:10PM0.23m
3:40AM-0.05m
3:52PM0.16m
4:08AM0.08m
clear
clear
part cloud
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:28
6:28
6:28
6:30
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:08
7:07
7:06
7:05
7:04
7:01
 mm
1
Temp °C
25
25
24
24
26
25
27
26
25
29
29
27
28
29
25
26
26
23
25
25
22
Feels °C
24
25
23
24
27
26
27
25
23
27
25
25
28
29
27
26
26
25
25
25
24
  • 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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