Trestles (Uppers) Surf Break

Lat Long: 33.38° N 117.59° W

Trestles (Uppers) Surf Forecast and Surf Report

Issued: 4 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Uppers) sea temperature is
23.8°C
3.9° 

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 4 Sep 2026:

  • Best quality surf: Sunday 6 Sep, 8AM (local time) - 6ft (1.9m), 14s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 8PM (local time) - 7ft (2.1m), 14s period, SSW swell with 1,652 kJ wave energy.
  • Next surfable swell (1★+): Friday 4 Sep, 8PM (local time) - 4ft (1.2m), 16s period with SSW 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 Friday (Sep 04) at 8PM. The primary swell is predicted to be 1.2m and 16s period with a secondary swell of 0.4m and 5s. 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 2.1m 14s and forecast to arrive on Monday (Sep 07) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 13s period and expected on Saturday (Sep 05) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 4th Sep)4ft (1.2m) 16s
Best Surf 8AM (Sun 6th Sep)6ft (1.9m) 14s
Most Powerful 8PM (Mon 7th Sep)7ft (2.1m) 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 shaping up for Trestles (Uppers). This is a reef and point break that’s exposed to the swell and very consistent. It’s an advanced wave, so don't be a hero if you're still learning the ropes.

Right now, we’re in a bit of a flat spell. The first few days are a write-off. Friday the 4th and Saturday the 5th serve up small, messy swell with onshore or cross-onshore winds and a combined energy that’s moderate at best (609 to 1370). The tide and conditions are just not playing ball.

The real standout, and the one to circle on your calendar, is Sunday morning, September 6th. A solid 6 ft S swell with a 14-second period (groundswell) rolls in, and the wind goes offshore out of the NNE at 12 mph, cleaning things right up. The combined energy is strong at 1470, and the conditions are described as excellent for experienced surfers. This is the pick of the whole window – good size, clean, and that long period will give you some proper shape at this point. The water temp is about average for the time of year, so no surprises there.

Monday the 7th and Tuesday the 8th are still pushing a decent 6 ft to 7 ft swell, but the wind swings cross-onshore and the quality drops fast. The energy is strong (1271 to 1654), but the chop will make it a battle. Not worth the paddle unless you're desperate.

Then we hit a bit of a lull. Wednesday morning the 9th sees a drop to 4 ft, but the wind goes glassy out of the WSW at 3 mph, and the conditions are expected to be very good. It’s small, but absolutely clean. The energy is moderate (616). A dawn patrol special for the patient.

From Thursday the 10th onwards, the surf fades. We’re looking at a long stretch of poor to marginal conditions with weak, short-period swell and persistent cross-onshore winds. The combined energy drops into the low hundreds (200-705). The second week, from the 12th to the 19th, is mostly flat and not worth your time. There’s a tiny pulse of very long-period swell (22 seconds!) on the 17th, but at only 1 ft, it’s a tease. The 18th and 19th offer a little more energy (around 480) but still small. That’s a 10-day gap with no real recommendations.

So, bottom line: Sunday morning, September 6th is your best bet. Clean, solid, and offshore. Wednesday morning the 9th is a glassy second option if you’re happy with small waves. The rest is a waiting game. Crowds are always a factor at Uppers, so get in early for that Sunday session.

- Rusty

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun morning. Warm (max 27°C on Sun afternoon, min 19°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Wed morning, min 24°C on Mon night). Wind will be generally light.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
1
3
3
3
3
4
2
3
2
0
4
2
0
2
1
1
3
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SSW
17
1.1
SSW
16
1
SSW
16
1.3
S
14
1.5
S
13
1.8
S
14
1.9
S
14
1.9
S
14
1.4
SSW
14
2
SSW
14
2
SSW
14
1.9
SSW
13
1.7
SSW
13
1.6
SSW
13
1.5
SSW
12
1.3
SSW
11
1.3
SSW
11
0.9
SW
17
1
SW
17
1
SW
16
1
SW
16
Wave Graph
Metric surfscale
Energy kJ
587
659
525
627
806
1161
1442
1304
721
1526
1400
1274
875
852
688
435
352
419
560
508
483
Wind (km/h)
10
SSW
10
WSW
5
ENE
10
W
10
WSW
10
NW
15
NNE
15
WNW
15
WNW
15
W
20
WNW
5
NNW
10
W
20
WNW
10
NW
10
W
15
W
5
SSW
10
WSW
15
WNW
10
NW
Wind State
on
on
glassy
cross-on
on
cross
cross-off
cross-on
cross
cross-on
cross-on
glassy
cross-on
cross-on
cross
cross-on
cross-on
glassy
cross-on
cross-on
cross
High Tide
3:06PM1.55m
6:58AM1.01m
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
Low Tide
11:34PM0.14m
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
clear
clear
clear
clear
clear
part cloud
light rain
cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:26
6:28
6:28
6:28
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:12
7:09
7:08
7:07
7:06
7:05
7:04
 mm
2
Temp °C
22
22
20
24
24
24
23
27
25
26
26
24
26
26
25
27
27
25
27
27
24
Feels °C
22
21
22
23
23
23
22
27
24
26
24
22
24
23
25
26
25
26
27
26
25
  • 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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