Trestles (Uppers) Surf Break

Lat Long: 33.38° N 117.59° W

Trestles (Uppers) Surf Forecast and Surf Report

Issued: 4 am 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Uppers) sea temperature is
24.3°C
4.5° 

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 30 Aug 2026:

  • Best quality surf: Sunday 30 Aug, 11PM (local time) - 3ft (0.9m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Sunday 6 Sep, 8AM (local time) - 5.5ft (1.7m), 14s period, S swell with 1,083 kJ wave energy.
  • Next surfable swell (1★+): Sunday 30 Aug, 8PM (local time) - 3.5ft (1.0m), 14s 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 Sunday (Aug 30) at 8PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.9m and 7s. 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 1.7m 14s and forecast to arrive on Sunday (Sep 06) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 13s period and expected on Saturday (Sep 05) at 2PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 30th Aug)3.5ft (1.0m) 14s
Best Surf11PM (Sun 30th Aug)3ft (0.9m) 14s
Most Powerful 8AM (Sun 6th Sep)5.5ft (1.7m) 14s

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


The Lowdown

G'day, Rusty here, and I've been staring at the charts for the next couple of weeks. Honestly, mate, it's a tough stretch. The water temp is sitting at 76°F at Trestles (Uppers) – that's a massive 8°F warmer than usual, so a spring suit might be a bit much, but the surf itself is a real mixed bag. We're looking at a long gap before anything decent shows up.

From now until the morning of the 6th of September, it's pretty grim. We've got a series of weak, marginal swells with cross-onshore winds messing up the surface. The swell heights stay under 4 ft, and the energy is weak, ranging from 288 to 737 (combined energy). The winds are mostly light, but the direction is wrong, and the wave quality is poor. It's not worth paddling out for.

Then, on the morning of the 6th, we get a bit of a pulse. The swell picks up to 4 ft from the SSW with a 15-second period, but the wind is a moderate cross-shore from the NW at 16 mph, creating a cross-chop. The energy jumps to 1242 (combined energy), but the conditions are still marginal. The afternoon gets worse – 6 ft from the S but with a choppy cross-onshore wind. Not your day.

The 7th of September morning is a little better with 5 ft S swell, light cross-onshore winds, and energy at 1107 (combined energy), but it's still marginal. The afternoon is a write-off with 37 mph winds and rain. Skip it.

Now, here's the standout, and it's a week away. The morning of the 8th of September. Swell builds to 8 ft from the SSW, with a 14-second period. The energy is strong at 2239 (combined energy). The wind is a light cross-shore from the WNW, which will keep it relatively clean. This is for the advanced crew only – it's big, powerful, and the water will be moving. The afternoon sees it jump to 12 ft and 4524 energy, but with a moderate cross-onshore wind, it'll be a bit of a mess. The morning is your best window in the whole outlook.

After that, the 9th of September drops off quickly with 5 ft from the SW on a short 9-second period, and the following days are back to small, weak, and choppy. The 10th and 11th have some 3 ft SW swell with a longer 15-16 second period, but the energy is weak (around 451 to 547) and the winds are still cross-onshore. The 12th through the 14th are just tiny dribble.

So, to sum it up: a long, slow start, a big, powerful but short-lived window on the 8th morning for the experienced, and then a return to small, messy conditions. Keep an eye on that date, but don't hold your breath.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Sun morning, min 21°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Wed morning, min 21°C on Wed night). Wind will be generally light.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
2
1
1
2
0
0
1
0
0
3
1
1
3
1
1
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)
1.1
SSW
15
1
SSW
14
0.9
SSW
14
0.9
SSW
14
1
S
12
0.7
SSW
13
0.8
S
11
0.7
S
11
0.5
SW
18
0.7
SSW
13
0.7
SSW
12
0.7
SW
17
0.9
SSW
12
0.8
SSW
18
0.9
SSW
18
1
SSW
17
1
SSW
16
1.1
SSW
16
1
SSW
16
1
SSW
16
1.4
S
13
Wave Graph
Metric surfscale
Energy kJ
537
400
321
325
285
154
149
110
152
170
145
291
196
404
547
594
566
620
506
512
683
Wind (km/h)
15
S
10
WSW
5
S
10
SW
15
W
5
NW
15
W
20
WNW
10
NW
10
W
20
WNW
0
NW
10
SSW
15
W
5
NW
10
SW
10
SW
5
ESE
10
SSW
10
W
5
NW
Wind State
cross-on
on
glassy
on
cross-on
glassy
cross-on
cross-on
cross
cross-on
cross-on
glassy
on
cross-on
glassy
on
on
glassy
cross-on
cross-on
cross
High Tide
10:52AM1.58m
10:57PM1.45m
11:20AM1.62m
11:42PM1.26m
11:53AM1.63m
00:41AM1.06m
12:34PM1.62m
2:20AM0.88m
1:34PM1.57m
5:35AM0.88m
3:06PM1.55m
6:58AM1.01m
4:42PM1.62m
Low Tide
5:04PM0.29m
5:06AM0.26m
5:52PM0.28m
5:29AM0.41m
6:51PM0.30m
5:52AM0.58m
8:11PM0.32m
6:14AM0.73m
9:57PM0.27m
6:35AM0.88m
11:34PM0.14m
10:07AM0.94m
00:38AM-0.01m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
6:24
6:24
6:24
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:16
7:15
7:14
7:13
7:12
7:09
 mm
Temp °C
26
26
23
24
24
22
24
25
22
25
25
23
25
25
22
24
25
23
26
26
24
Feels °C
26
27
26
24
23
22
23
22
20
24
22
21
24
24
22
23
25
25
26
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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